A. E. Fallick

Publication List Details

Period

1988 - 2009

Number

295

Co-Authors

Bomb-14C analysis of ecosystem respiration reveals that peatland vegetation facilitates release of old carbon (2009)

Hardie, S.M.L., Garnett, M.H., Fallick, A.E., Ostle, N.J., Rowland, A.P.

The largest terrestrial-to-atmosphere carbon flux is respired CO2. However, the partitioning of soil and plant sources, understanding of contributory mechanisms, and their response to climate change...

Gem-corundum megacrysts from east Australian basalt fields: trace elements, oxygen isotopes and origins (2009)

Sutherland, F.L., Zaw, K., Meffre, S., Giuliani, G., Fallick, A.E., Graham, I.T., ...

Gem corundum, a minor but persisten megacryst in east Australian basalt fields, is mined from some placer concentrations. Laser ablation, inductively couled plasma mass spectrometry analyses and O...

Evidence for obliquity forcing of glacial termination II (2009)

Drysdale, R.N., Hellstrom, J.C., Zanchetta, G., Fallick, A.E., Sanchez Goni, M.F., Couchoud, I., ...

Variations in the intensity of high-latitude Northern Hemisphere summer insolation, driven largely by precession of the equinoxes, are widely thought to control the timing of Late Pleistocene glacial...

Environmental change in northern Belize since the last Pleistocene (2009)

Metcalfe, S., Breen, A., Malcolm, M., Furley, P., Fallick, A.E., Mackenzie, A.B.

Cores from the New River Lagoon in Belize have been analysed using a range of palaeolimnological proxies to reconstruct change since the latest Pleistocene. The combination of diatom and stable...

Evidence for obliquity forcing of glacial termination II (2009)

Drysdale, R.N., Hellstrom, J.C., Zanchetta, G., Fallick, A.E., Sanchez Goni, M.F., Couchoud, I., ...

Variations in the intensity of high-latitude Northern Hemisphere summer insolation, driven largely by precession of the equinoxes, are widely thought to control the timing of Late Pleistocene glacial...

CO2-mineral reaction in a natural analogue for CO2 storage-implications for modelling (2009)

Wilkinson, M., Haszeldine, R.S., Fallick, A.E., Odling, N., Stoker, S.J., Gatliff, R.W.

Geochemical models of CO2 injection into reservoir sandstones often predict the growth of minerals that will permanently store the CO2 in solid form, and injection experiments record significant...

Petroleum surface oil seeps from a Palaeoproterozoic petrified giant oilfield (2009)

Melezhik, V.A., Fallick, A.E., Filippov, M., Lepland, A., Rychanchik, D.V., Deines, Y.E., ...

Early Palaeoproterozoic rocks from the Onega Basin in Russian Fennoscandia contain evidence for substantial accumulation and preservation of organic matter (up to 75 wt% total organic carbon)...

Sapphire-ruby characteristics, West Pailin, Cambodia: clues to their origin based on trace element and O isotope analysis (2009)

Sutherland, F.L., Giuliani, G., Fallick, A.E., Garland, M., Webb, G.

Trace element (Particle-induced X-ray emission) and oxygen isotope (B18O) analyses on West Pailin, Cambodian sapphires and rubies further constrain the geochernical characteristics of this...

Constraints on 87Sr/86Sr of Late Ediacaran seawater: insight from Siberian high-Sr limestones (2009)

Melezhik, V.A., Pokrovsky, B.G., Fallick, A.E., Kuznetsov, A.B., Bujakaite, M.I.

In SE Siberia, carbonate formations with δ13Ccarb values ranging between –12‰ and –7‰ (V-PDB) and Sr concentrations of up to 2.5% occupy an area of 40 000 km2. Several...

Long-term performance of a mudrock seal in natural CO2 storage (2009)

Lu, J., Wilkinson, M., Haszeldine, R.S., Fallick, A.E.

The ability of mudrock seals to prevent CO2 leakage is a major concern for geological storage of anthropogenic CO2. The long-term performance of a mudrock seal, which provides a natural analogue, in...

Oxygen isotopes composition of sapphires from the French Massif Central: implications for the origin of gem corundum in basaltic fields (2009)

Giuliani, G., Fallick, A.E., Ohnenstetter, D., Pegere, G

Alluvial and colluvial gem sapphires are common in the basaltic fields of the French Massif Central (FMC) but sapphire-bearing xenoliths are very rare, found only in the Menet trachytic cone in...

CO2 - mineral reaction in a natural analogue for CO2 storage - implications for modeling (2009)

Wilkinson, M., Haszeldine, R.S., Fallick, A.E., Odling, N., Stoker, S.J., Gatliff, R.W.

Geochemical models of CO2 injection into reservoir sandstones often predict the growth of minerals that will permanently store the CO2 in solid form, and injection experiments record significant...

Global C cycle perturbations recorded in marbles: a record of Neoproterozoic earth history within the Dalradian succession of the Shetland Islands, Scotland (2009)

Prave, A.R., Strachan, R.A., Fallick, A.E.

The Shetland Islands in Scotland contain a c. 12 km thick, mostly siliciclastic Neoproterozoic succession that experienced deformation and greenschist- to amphibolite-facies metamorphism during the...

A composite C-isotope profile for the Neoproterozoic Dalradian Supergroup of Scotland and Ireland (2009)

Prave, A.R., Fallick, A.E., Thomas, C.W., Graham, C.M.

The Neoproterozoic Dalradian Supergroup is a dominantly siliciclastic metasedimentary succession in the Caledonian orogenic belt of Scotland and Ireland. Despite polyphase deformation and...

Vertebrate nutrition in a deep-sea hydrothermal vent ecosystem: fatty acid and stable isotope evidence (2008)

Pond, D.W., Fallick, A.E., Stevens, C.J., Morrison, D.J., Dixon, D.R.

The hydrothermal vent zoarcid fish Thermarces cerberus is a top predator that inhabits deep-sea hydrothermal vents on the East Pacific Rise (EPR). Bacterial chemoautotrophy at these sites supports...

Oxygen isotope composition of magnetite in iron ores of the Kiruna type in Chile and Sweden (2008)

Nyström, J.O., Billström, K., Henriquez, F., Fallick, A.E., Naslund, H.R.

Magnetite-apatite iron ores of the Kiruna type, unaffected by deformation, have structures and textures similar to those of igneous rocks. The best examples are the El Laco deposits in northern Chile...

Verterbrate nutrition in a deep-sea hydrothermal vent ecosystem: fatty acid and stable isotope evidence (2008)

Pond, D.W., Fallick, A.E., Stevens, C.J., Morrison, D.J., Dixon, D.R.

The hydrothermal vent zoarcid fish Thermarces cerberus is a top predator that inhabits deep-sea hydrothermal vents on the East Pacific Rise (EPR). Bacterial chemoautotrophy at these sites supports...

The environmental features of the Monte Corchia cave system (Apuan Alps, central Italy) and their effects on speleothems growth (2008)

Piccini, L., Zanchetta, G., Drysdale, R., Hellstrom, J.C., Ilaria, I., Fallick, A.E., ...

The Monte Corchia cave system, one of the most famous and popular caves in Italy, has in recent times been the subject of investigation on its speleothems as paleoclimate archives. This paper...

Micro-Fourier Transform Infrared (FT-IR) and δD value investigation of hydrothermal vein quartz: interpretation of fluid inclusion δD values in hydrothermal systems (2008)

Gleeson, S.A., Roberts, S., Fallick, A.E., Boyce, A.J.

Some recent studies have suggested that the hydrogen isotopic composition (δD) of hydrothermal fluids, released in vacuo by thermal decrepitation of quartz, are not always accurately revealed. We...

Micro-Fourier Transform Infrared (FT-IR) and {delta}D value investigation of hydrothermal vein quartz: Interpretation of fluid inclusion {delta}D values in hydrothermal systems (2008)

Gleeson, S.A., Roberts, S., Fallick, A.E., Boyce, A.J.

Some recent studies have suggested that the hydrogen isotopic composition ({delta}D) of hydrothermal fluids, released in vacuo by thermal decrepitation of quartz, are not always accurately revealed....

Marble-hosted ruby deposits from Central and Southeast Asia: towards a new genetic model (2008)

Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., ...

Marble-hosted ruby deposits represent the most important source of colored gemstones from Central and South East Asia. These deposits are located in the Himalayan mountain belt which developed during...

Gem corundum deposits of Madagascar: a review (2008)

Rakotondrazafy, A.F.M., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Rakotosamizanany, S., Andriamamonjy, A., ...

Madagascar is one of the most important gem-producing countries in the world, including ruby and sapphires. Gem corundum deposits formed at different stages in the geological evolution of the island...

Geology, fluid inclusion and sulphur isotope characteristics of the El Cobre VHMS deposit, Southern Cuba (2008)

Cazañas, X., Alfonso, P., Melgarejo, J.C., Proenza, J.A., Fallick, A.E.

The El Cobre deposit is located in eastern Cuba within the volcanosedimentary sequence of the Sierra Maestra Paleogene arc. The deposit is hosted by tholeiitic basalts, andesites and tuffs and...

Electron backscatter diffraction (EBSD) as a tool for detection of coral diagenesis (2008)

Cusack, M., England, J., Dalbeck, P., Tudhope, A.W., Fallick, A.E., Allison, N.

Fine-scale structures of intact modern and fossil coralline skeletons were analysed to determine alteration to secondary cements and phases using electron backscatter diffraction (EBSD). EBSD...

Isotope chemostratigraphy of marbles in northeastern Mozambique: Apparent depositional ages and tectonostratigraphic implications (2008)

Melezhik, V.A., Bingen, B., Fallick, A.E., Gorokhov, I.M., Kuznetsov, A.B., Sandstad, J.S., ...

Marbles are minor but characteristic components of metasedimentary units within nappes in the Pan-African Mozambique Belt in NE Mozambique. Metasedimentary units remain largely undated, and carbon...

Oxygen isotope composition in Modiolus modiolus aragonite in the context of biological and crystallographic control (2008)

Cusack, M., Parkinson, D., Freer, A., Perez-Huerta, A., Fallick, A.E., Curry, G.B.

Living systems exert exquisite control on all aspects of biomineral production and organic components, including proteins, are essential to this biological control. The protein-rich extrapallial (EP)...

Mineralogy and geochemistry of El Dorado epithermal gold deposit, El Sauce district, central-northern Chile (2008)

Carrillo-Rosúa, J., Morales-Ruano, S., Morata, D., Boyce, A.J., Belmar, M., Fallick, A.E., ...

The El Dorado Au-Cu deposit is located in an extensive intra-caldera zone of hydrothermal alteration affecting Upper Cretaceous andesites of the Los Elquinos Formation at La Serena (≈ 29°47′S...

The Shuram-Wonoka event recorded in a high-grade metamorphic terrane: insight from the Scandinavian Caledonides (2008)

Melezhik, V.A., Roberts, D., Fallick, A.E., Gorokhov, I.M.

An approximately 250 m thick polydeformed and polymetamorphosed, isotopically unusual, variegated marble (locally termed the ‘Leivset marble’) shows a great lateral extent in the Scandinavian...

Subsurface filamentous fabrics: an evaluation of origins based on morphological and geochemical criteria, with implications for exopaleontology (2008)

Hofmann, B.A., Farmer, J.D., Von Blanckenburg, F., Fallick, A.E.

The fossil record of the subsurface biosphere is sparse. Results obtained on subsurface filamentous fabrics (SFF) from >225 paleosubsurface sites in volcanics, oxidized ores, and paleokarst of...

Relationship between δ18O and minor element composition of Terebratalia transversa (2008)

Cusack, M., Parkinson, D., Perez-Huerta, A., England, J., Curry, G.B., Fallick, A.E.

With their extensive fossil record and shells of stable low-Mg calcite, rhynchonelliform brachiopods are attractive sources of climate information via seawater temperature proxies such as stable...

Rubies and sapphires from Winza, Central Tanzania (2008)

Schwarz, D., Pardieu, V., Saul, J.M., Schmetzer, K., Laurs, B.M., Giuliani, G., ...

Since late 2007, rubies and sapphires have been mined by hand methods from both eluvial and primary deposits at Winza in central Tanzania. The gem corundum is related to "dikes" of amphibolitic rocks...

Ecological influences on {delta}13C of particulate matter in seasonally ice-covered Ryder Bay, Antarctica (2008)

Annett, A.L., Carson, D.S., Ganeshram, R.S., Fallick, A.E.

Carbon isotopes may be a useful paleoceanographic tool for reconstructing past pCO2 of surface water, but isotopic composition of particulate organic carbon has been shown in both field and...

Oceanic detachment faults focus very large volumes of black smoker fluids (2007)

McCaig, A.M., Cliff, R.A., Escartin, J., Fallick, A.E., MacLeod, C.J.

It is generally assumed that the seawater-derived fluids that feed black smoker vent fields on the seafloor are discharged vertically from depths of ~1–3 km. We present new oxygen and strontium...

Enhanced rainfall in the Western Mediterranean during deposition of sapropel S1: stalagmite evidence from Corchia cave (Central Italy) (2007)

Zanchetta, G., Drysdale, R. N., Hellstrom, J. C., Fallick, A. E., Isola, I., Gagan, M. K., ...

A stable isotope record from a stalagmite collected from Antro del Corchia cave (Apuan Alps, Central Italy), supported by 17 uranium-series ages, indicates enhanced regional rainfall between ca 8.9...

Enhanced rainfall in the Western Mediterranean during deposition of sapropel S1: stalagmite evidence from Corchia cave (Central Italy) (2007)

Zanchetta, G., Drysdale, R. N., Hellstrom, J. C., Fallick, A. E., Isola, I., Gagan, M. K., ...

A stable isotope record from a stalagmite collected from Antro del Corchia cave (Apuan Alps, Central Italy), supported by 17 uranium-series ages, indicates enhanced regional rainfall between ca 8.9...

Stalagmite evidence for the onset of the Last Interglacial in southern Europe at 129+/- 1 ka (2005)

Drysdale, R. N., Zanchetta, G., Hellstrom, J. C., Fallick, A. E., Zhao, J. X.

Multi-proxy data from an Italian stalagmite constrain the commencement of full Last Interglacial conditions in southern Europe at 129 +/- 1 ka, consistent with absolutely dated records currently...

Basalt petrology, zircon ages and sapphire genesis from Dak Nong, southern Vietnam (2005)

Garnier, V., Ohnenstetter, D., Giuliani, G., Fallick, A.E., Trong, T.P., Quang, V.H., ...

Basalts associated with sapphire deposits are widespread in Europe, Africa, Asia and Australia. In Vietnam, blue, green and yellow sapphires are recovered from eluvial and alluvial placers hosted in...

Oxygen isotope composition as a tracer for the origins of rubies and sapphires (2005)

Giuliani, G., Fallick, A.E., Garnier, V., France-Lanord, C., Ohnenstetter, D., Schwarz, D.

Oxygen isotopic compositions of rubies and sapphires from 106 deposits worldwide, as well as heated natural corundum, have been measured in this study. Artificially heated corundums have the same...

Boron and calcium isotope composition in Neoproterozoic carbonate rocks from Namibia: evidence for extreme environmental change (2005)

Kasemann, S.A., Hawkesworth, C.J., Prave, A.R., Fallick, A.E., Pearson, P.N.

The level and evolution of atmospheric carbon dioxide throughout Earth's history are key issues for palaeoclimate reconstructions, especially during times of extreme climate change such as those that...

Geochemical preservation potential of high-grade calcite marble versus dolomite marble: implication for isotope chemostratigraphy (2005)

Melezhik, V.A., Roberts, D., Fallick, A.E., Gorokhov, I.M., Kusnetzov, A.B.

The Neoproterozoic Hekkelstrand Marble from the North-Central Norwegian Catedonides contains a calcite marble unit hosting a commercially exploited white dolomite marble deposit, which underwent...

Palaeoproterozoic evaporites in Fennoscandia: implications for seawater sulphate, the rise of atmospheric oxygen and local amplification of the delta C-13 excursion (2005)

Melezhik, V.A., Fallick, A.E., Rychanchik, D.V., Kuznetsov, A.B.

This paper addresses global oxygenation and establishment of a marine sulphate reservoir in the Palaeoproterozoic. We report syn-depositional, marine, anhydrite-containing pseudomorphs after...

Barite-pyrite mineralization of the Wiesbaden thermal spring system, Germany: a 500-kyr record of geochemical evolution (2005)

Wagner, T., Kirnbauer, T., Boyce, A.J., Fallick, A.E.

Barite-(pyrite) mineralizations from the thermal springs of Wiesbaden, Rhenish Massif, Germany, have been studied to place constraints on the geochemical evolution of the hydrothermal system in space...

Stalagmite evidence for the onset of the Last Interglacial in southern Europe at 129+/- 1 ka (2005)

Drysdale, R. N., Zanchetta, G., Hellstrom, J. C., Fallick, A. E., Zhao, J. X.

Multi-proxy data from an Italian stalagmite constrain the commencement of full Last Interglacial conditions in southern Europe at 129 +/- 1 ka, consistent with absolutely dated records currently...

The origin of clay minerals in active and relict hydrothermal deposits (2004)

Severmann, S., Mills, R.A., Palmer, M.R., Fallick, A.E.

Samples of Fe-oxide-rich hydrothermal sediments were collected from active and inactive portions of the TransAtlantic Geotraverse (TAG) hydrothermal field on the Mid-Atlantic Ridge. Clays separated...

87Sr/86Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales (2004)

Thomas, C.W., Graham, C.M., Ellam, R.M., Fallick, A.E.

New calcite 87Sr/86Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater...

Metamorphic and Basin Fluids in Quartz-Carbonate-Sulphide Veins in the SW Scottish Highlands: a Stable Isotope and Fluid Inclusion Study (2004)

Anderson, R., Graham, C.M., Boyce, A.J., Fallick, A.E.

Metalliferous (Fe-Cu-Pb-Zn) quartz-carbonate-sulphide veins cut greenschist to epidote-amphibolite facies metamorphic rocks of the Dalradian, SW Scottish Highlands, with NE-SW to NW-SE trends,...

Subaerial exposure surfaces in a Palaeoproterozoic 13C-rich dolostone sequence from the Pechenga Greenstone Belt: palaeoenvironmental and isotopic implications for the 2330-2060 Ma global isotope excursion of 13C/12C (2004)

Melezhik, V.A., Fallick, A.E., Grillo, S.M.

This article reports the discovery of numerous subaerial exposure surfaces which occur in the ca. 2200 Ma Kuetsjdrvi Sedimentary Formation (KSF) from the Pechenga Greenstone Belt, NE Fennoscandian...

Palaeoclimatic implications of the growth history and stable isotope (delta O-18 and delta C-13) geochemistry of a Middle to Late Pleistocene stalagmite from central-western Italy (2004)

Drysdale, R.N., Zanchetta, G., Hellstrom, J.C., Fallick, A.E., Zhao, J.X., Isola, I., ...

The age structure and, stable isotope composition of a stalagmite (CC I) from an upland cave in central-western Italy were studied to investigate regional response to global climatic changes. Four...

Laser microprobe sulphur isotope analysis of arsenopyrite: experimental calibration and application to the Boliden Au-Cu- As massive sulphide deposit (2004)

Wagner, T., Boyce, A.J., Jonsson, E., Fallick, A.E.

Metamorphic remobilization of arsenopyrite-rich ores is a globally important process which can lead to significant concentrations of gold. In order to understand this and related processes, relations...

Source and evolution of ore-forming hydrothermal fluids in the northern Iberian Pyrite Belt massive sulphide deposits (SW Spain): evidence from fluid inclusions and stable isotopes (2003)

Sánchez-España, J., Velasco, F., Boyce, A.J., Fallick, A.E.

A fluid inclusion and stable isotopic study has been undertaken on some massive sulphide deposits (Aguas Teñidas Este, Concepción, San Miguel, San Telmo and Cueva de la Mora) located in the...

Fractionation of carbon and oxygen isotopes in 13C-rich Palaeoproterozoic dolostones in the transition from medium-gradegreenschist facies: a case study from the Kola Superdeep Drillhole (2003)

Melezhik, V.A., Fallick, A.E., Smirnov, Y.P., Yakovlev, Y.N.

Samples from the Kola Superdeep Drillhole (12 262 m), a deep drillhole (1060 m), and from the surface, seaprated by only around 10 km, provided a unique opportunity for direct tracing of delta(13)C...

Timing and genesis of base- metal mineralisation in black shales of the Upper Permian Ravnefjeld Formation, Wegener Halvo, East Greenland (2003)

Pedersen, M., Nielsen, J.K., Boyce, A.J., Fallick, A.E.

Bituminous mud shales of the Upper Permian Ravnefjeld Formation (Zechstein I equivalent) are mineralised with zinc, lead and copper within a ca. 50 km 2 area on Wegener Halvo in central East...

Oxygen isotope composition and geothermometry of granulite to greenschist facies metamorphic rocks: a study from the Neoproterozoic collision-related nappe system, south of Sao Francisco Craton, SE Brazil (2003)

Neto, M.C.C., Fallick, A.E.

Oxygen isotope studies were carried out across units of a Neoproterozoic nappe system, south of Sao Francisco Craton. A temperature decrease toward the base of the system is found, consistent with a...

A model for the origin of AI-rich efflorescences near fumaroles, Melos, Greece: enhanced weathering in a geothermal setting (2003)

Hall, A.J., Fallick, A.E., Perdikatsis, V., Photos-Jones, E.

Efflorescences in the geothermal field of SE Melos, Greece, contain significant amounts of hydrated Al sulphate, alunogen, which could represent the Melian alumen exploited in Roman times and...

Melt generation and fluid flow in the thermal aureole of the Bushveld Complex (2003)

Harris, N., McMillan, A., Holness, M., Uken, R., Watkeys, M., Rogers, N., ...

Granite sheets emplaced into the migmatite zone of the eastern contact aureole of the Bushveld Complex resulted from fluid-enhanced, incongruent biotite melting of the underlying Silverton Formation...

The structural and diagenetic evolution of injected sandstones: examples from the Kimmeridgian of NE Scotland (2003)

Jonk, R., Duranti, D., Parnell, J., Hurst, A., Fallick, A.E.

Abstract: Injected sandstones occurring in the Kimmeridgian of NE Scotland along the bounding Great Glen and Helmsdale faults formed when basinal fluids moved upward along the fault zones, fluidizing...

Sr isotope composition in paleoproterozoic carbonates extremely enriched in 13C: Kaniapiskau supergroup, the Labrador trough of the Canadian shield (2003)

Kuznetsov, A.B., Melezhik, V.A., Gorokhov, I.M., Melnikov, N.N., Fallick, A.E.

Paleoproterozoic dolostones of the Dunphy, Portage, Alder, and Uve formations representing lower horizons of the Kaniapiskau Supergroup in the Labrador trough of the Canadian Shield are remarkable,...

δ13C and δ18O variations in primary and secondary carbonate phases: several contrasting examples from Palaeoproterozoic 13C-rich metamorphosed dolostones (2003)

Melezhik, V.A., Fallick, A.E.

The Palaeoproterozoic Kuetsjarvi Sedimentary Formation from the Pechenga Greenstone Belt, NW Russia, has been studied with the purpose of determining δ13Ccarb and δ18Ocarb values in various...

Degassing at the Soufriere Hills Volcano, Montserrat, recorded in matrix glass compositions (2003)

Harford, C.L., Sparks, R.S.J., Fallick, A.E.

Compositions of matrix glasses from the current eruption of Soufriere Hills Volcano indicate that decompression-driven crystallization results in 20-70 wt % groundmass crystallization during eruption...

Degassing at the Soufriere Hills Volcano, Montserrat, Recorded in Matrix Glass Compositions (2003)

HARFORD, C. L., SPARKS, R. S. J., FALLICK, A. E.

Compositions of matrix glasses from the current eruption of Soufrière Hills Volcano indicate that decompression-driven crystallization results in 20–70 wt % groundmass crystallization during...

Pore water evolution in oilfield sandstones: constraints from oxygen isotope microanalyses of quartz cement (2002)

Marchand, A.M.E., Macaulay, C.I., Haszeldine, R.S., Fallick, A.E.

Oxygen isotope microanalyses of authigenic quartz, in combination with temperatures of quartz precipitation constrained. by fluid inclusion microthermometry and burial history modelling, are employed...

Note on the importance of hydrocarbon fill for reservoir quality prediction in sandstones (2002)

Marchand, A.M.E., Smalley, P.C., Haszeldine, R.S., Fallick, A.E.

Oil emplacement retarded the rate of quartz cementation in the Brae Formation deep-water sandstone reservoirs of the Miller and Kingfisher fields (United Kingdom North Sea), thus preserving porosity...

Stable isotope study of the igneous, metamorphic and mineralized rocks of the Edough complex, Annaba, Northeast Algeria (2002)

Laouar, R., Boyce, A.J., Ahmed-Said, Y., Ouabadi, A., Fallick, A.E., Toubal, A.

The petrogenesis of igneous, metamorphic and mineralized rocks in the Edough massif, NE Algeria, indicates an interplay between crustal and magmatic sources, and magmatic and surface fluids, as...

Use of stable oxygen isotope determinations from brachiopod shells in palaeoenvironmental reconstruction (2002)

Curry, G.B., Fallick, A.E.

Stable oxygen isotope analyses were obtained from fossil brachiopod shells from a shallow marine deposit of Upper Pleistocene age (approximately 80 ka) in New Zealand as part of a palaeoenvironmental...

Isotopic evidence for a complex Neoproterozoic to Silurian rock assemblage in the North-Central Norwegian Caledonides (2002)

Melezhik, V.A., Roberts, D., Gorokhov, I.M., Fallick, A.E., Zwaan, K.B., Kuznetsov, A.B., ...

Depositional ages of high-grade marble sequences in the Ofoten district of the North-Central Norwegian Caledonides have been constrained by the application of carbon and strontium isotope...

Sulphur isotope composition of silurian shale-hosted PGE-Ag-Au- Zn-Cu mineralisations of the Prades Mountains (Catalonia, Spain) (2002)

Alfonso, P., Canet, C., Melgarejo, J.C., Fallick, A.E.

Several Silurian metamorphosed shale-hosted sulphide occurrences have been studied in the Prades Mountains, southern part of the Coastal Catalonian Ranges. Most of the sulphides are found as...

Timing of interplay between hydrothermal and surface fluids in the Navan Zn plus Pb orebody, Ireland: Evidence from metal distribution trends, mineral textures, and delta S-34 analyses (2002)

Blakeman, R.J., Ashton, J.H., Boyce, A.J., Fallick, A.E., Russell, M.J.

Models of genesis for the Navan orebody are of two distinct types. An early hypothesis that mesothermal (though nonmagmatic) deposition of ore began when a supernatant seawater brine still had access...

Determination of rhizosphere C-13 pulse signals in soil thin sections by laser ablation isotope ratio mass spectrometry (2002)

Bruneau, P.M.C., Ostle, N., Davidson, D.A., Grieve, I.C., Fallick, A.E.

In grassland ecosystems, soil animals act as key soil engineers and architects. The diversity of soil animals is also a regulator of ecosystem carbon flow. However, our understanding of the link...

Isotopic stratigraphy suggests Neoproterozoic ages and Laurentian ancestry for high-grade marbles from the North- Central Norwegian Caledonides (2002)

Melezhik, V.A., Gorokhov, I.M., Fallick, A.E., Roberts, D., Kuznetsov, A.B., Zwaan, K.B., ...

Carbon and strontium isotope stratigraphy has been applied to constrain the depositional ages of high-grade marble sequences in the Ofoten district of the North-Central Norwegian Caledonides. Two...

Picritic magmas and the Rum ultramafic complex, Scotland (2002)

Upton, B.G.J., Skovgaard, A.C., McClurg, J., Kirstein, L., Cheadle, M., Emeleus, C.H., ...

Three small picritic dykes, intruded at a late stage in the evolution of the Rum basic-ultra-basic complex, Inner Hebrides, shed new light on the nature of the magmas responsible for the main...

Laser combustion analysis of delta S-34 of sulfosalt minerals: Determination of the fractionation systematics and some crystal-chemical considerations (2002)

Wagner, T., Boyce, A.J., Fallick, A.E.

Laser sulfur combustion in the presence of 0, is the most commonly used method of in situ sulfur isotope analysis. Previous workers indicated that a small but reproducible fractionation of (34S)/S-32...

Denitrification and phenol degradation in a contaminated aquifer (2001)

Spence, M.J., Bottrell, S.H., Higgo, J.J.W., Harrison, I., Fallick, A.E.

A natural groundwater system modified by pollutant phenols and agricultural nitrate has been modelled in the laboratory by a series of sacrificial microcosm experiments. Samples of aquifer sediment...

87Sr/86Sr: A new discriminant for provenancing neolithic porcellanite artifacts from Ireland (2001)

Curran, J.M., Meighan, I.G., Simpson, D.D.A., Rogers, G., Fallick, A.E.

Antrim porcellanite (thermally metamorphosed Tertiary laterite) was the most common raw material used in the production of stone implements during the Neolithic in Ireland and was worked at two...

Strontium and carbon isotope geochemistry applied to dating of carbonate sedimentation: an example from high-grade rocks of the Norwegian Caledonides (2001)

Melezhik, V.A., Gorokhov, I.M., Fallick, A.E., Gjelle, S.

'Isotope stratigraphy' has been applied to an undated, high- grade carbonate sequence from the Norwegian Caledonides in order to constrain the depositional age. Sokumfjell Group marbles of the Beiarn...

A Study of Carbon and Nitrogen Stable Isotope and Elemental Ratios as Potential Indicators of Source and Fate of Organic Matter in Sediments of the Forth Estuary, Scotland (2001)

Graham, M.C., Eaves, M.A., Farmer, J.G., Dobson, J., Fallick, A.E.

The purpose of this study was to investigate the importance of both natural and anthropogenic sources of organic matter in bottom sediments of the Forth Estuary, east Scotland, U.K. Organic matter...

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating' (2001)

Melezhik, V.A., Gorokhov, I.M., Kuznetsov, A.B., Fallick, A.E.

The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its...

Interpretive problems in a search for micro-invertebrate fossils from a neoproterozoic limestone in Namibia (2001)

Brain, C.K., Coetzee, J., Botha, A.J., Hoffmann, K.H., Prave, A.R., Fallick, A.E.

Attention is focussed on a carbonate sequence in the Auros Formation of the Otavi Group in northern Namibia, where several limestone layers are found to have been phosphatised. These contain an...

Bacteria were responsible for the magnitude of the world-class hydrothermal base metal sulfide orebody at Navan Ireland (2001)

Fallick, A.E., Ashton, J.H., Boyce, A.J., Ellam, B.M., Russell, M.J.

We report sulfur and lead isotope analyses of mine concentrates from Navan, the largest zinc deposit in Ireland. These samples, each representing up to a million tonnes of ore, show very limited...

Carbonate diagenesis in a high transmissivity coastal aquifer, Biscayne Aquifer, southeastern Florida, USA (2001)

Maliva, R.G., Missimer, T.M., Walker, C.W., Owosina, E.S., Dickson, J.A.D., Fallick, A.E.

Cores collected through the Biscayne Aquifer (Plio-Pleistocene) in Hollywood, southeastern Florida, as part of the Hollywood Coastal Salinity Barrier Project provided an opportunity to examine the...

Evidence for reduced quartz-cementation rates in oil-filled sandstones (2001)

Marchand, A.M.E., Haszeldine, R.S., Smalley, P.C., Macaulay, C.I., Fallick, A.E.

When quartz-rich sands are buried and heated, pore space is gradually filled by precipitation of quartz cement from aqueous formation fluids. Here we examine whether the presence of oil in the pore...

Palaeoproterozoic travertines of volcanic affiliation from a C- 13-rich rift lake environment (2001)

Melezhik, V.A., Fallick, A.E.

The ca. 2.2 Ga Kuetsjarvi Sedimentary Formation (KSF) of the Pechenga Greenstone Belt, the north-east Fennoscandian Shield, contains the oldest travertines so far reported in the literature. The...

Palaeoproterozoic magnesite: lithological and isotopic evidence for playa/sabkha environments (2001)

Melezhik, V.A., Fallick, A.E., Medvedev, P.V., Makarikhin, V.V.

Magnesite forms a series of 1- to 15-m-thick beds within the approximate to2.0 Ga (Palaeoproterozoic) Tulomozerskaya Formation, NW Fennoscandian Shield, Russia. Drillcore material together with...

Relationships between hornblende K-Ar ages, chemical composition and hydrogen isotopes, Connemara, western Ireland: evidence for a massive extinct hydrothermal system (2001)

Jappy, T.G., Leake, B.E., Fallick, A.E.

Major element compositional analyses, K-Ar ages, deltaD parts per thousand and delta O-18 parts per thousand values for 30 zoned and unzoned hornblendes from Dalradian amphibolites and metagabbros....

Estimates of sulphate reduction rates in Lake Vanda, Antarctica support the proposed recent history of the lake (2001)

Purdy, K.J., Hawes, I., Bryant, C.L., Fallick, A.E., Nedwell, D.B.

Lake Vanda, a perennially ice-covered Antarctic lake has a highly stratified structure with a pronounced density gradient from 45 m and is anoxic from 68 rn down. In order to gain a greater...

Assessment of grid-based whole-rock delta D surveys in exploration: Boulder County epithermal tungsten deposit, Colorado (2001)

Rice, C.M., Harmon, R.S., Boyce, A.J., Fallick, A.E.

Important epithermal tungsten mineralization in the Boulder County district is mainly hosted by quartz-ferberite (FeWO4) veins. Isotopic studies based on an extensive grid (deltaD) and individual...

Unusual fatty acid composition of storage lipids in the bresilioid shrimp Rimicaris exoculata couples the photic zone with MAR hydrothermal vent sites (2000)

Pond, D.W., Gebruk, A., Southward, E.C., Southward, A.J., Fallick, A.E., Bell, M.V., ...

ABSTRACT: Lipid and stable carbon isotope analyses of Rimicans exoculata, the dominant breslhoid shrimp found at the MAR (Mid-Atlantic Ridge) vent sites, have indicated that these animals possess a...

Disseminated 'jigsaw piece' dolomite in Upper Jurassic shelf sandstones, Central North Sea: an example of cement growth during bioturbation (2000)

Hendry, J.P., Wilkinson, M., Fallick, A.E., Trewins, N.H.

Unusual textural and chemical characteristics of disseminated dolomite in Upper Jurassic shelf sediments of the North Sea have provided the basis for a proposed new interpretation of early diagenetic...

The nature and genesis of gold-silver-tellurium mineralization in the Metaliferi Mountains of western Romania (2000)

Alderton, D.H.M., Fallick, A.E.

Precious metal (Au, Ag) and base metal (Pb, Zn) deposits in the Metaliferi Mountains of western Romania occur in steeply clipping quartz-Ca/Mn carbonate veins, which are hosted by Miocene andesitic...

Sourcing of fossil fuel-derived PAH in the environment (2000)

McRae, C., Sun, C.G., McMillan, C., Snape, C.E., Fallick, A.E.

To investigate the effects of domestic coal burning on the distribution and isotopic composition of environmental PAH, a series of soil samples were collected in a coal-burning village nearby...

Metamorphic reactions in the biotite zone, eastern Scotland: high thermal gradients, metasomatism and cleavage formation (2000)

Dempster, T.J., Fallick, A.E., Whittemore, C.J.

Prograde metamorphic reactions involving the growth of phyllosilicates and accompanying cleavage development have been investigated in Dalradian metasediments from the biotite zone of eastern...

Retrogression by deep infiltration of meteoric fluids into thrust zones during late-orogenic rapid unroofing (2000)

Barker, A.J., Bennett, D.G., Boyce, A.J., Fallick, A.E.

Hypersaline (Na-Ca-Cl) fluids are associated with late-stage quartz veining and retrogression of garnet, kyanite and other high P-T phases in the vicinity of thrusts and major lithological boundaries...

From basin to basement: the movement of surface fluids into the crust (2000)

Gleeson, S.A., Yardley, B.W.D., Boyce, A.J., Fallick, A.E., Munz, L.A.

Quartz veins from Precambrian, high grade, basement rocks in Southern Norway contain both aqueous and biogenically sourced hydrocarbon fluid inclusions. Aqueous fluids show a wide range in salinities...

Sandstone cementation and fluids in hydrocarbon basins (2000)

Haszeldine, R.S., Macaulay, C.I., Marchand, A., Wilkinson, M., Graham, C.M., Cavanagh, A., ...

Are porewater flow or stasis exclusive hypotheses? We think there is an intermediate view. Processes governing sandstone cementation in the deep sub-surface are elusive, case-specific and difficult...

Ankerite cementation in deeply buried Jurassic sandstone reservoirs of the central North Sea (2000)

Hendry, J.P., Wilkinson, M., Fallick, A.E., Haszeldine, R.S.

Upper Jurassic Fulmar Formation shelf sandstones of the high- temperature, high-pressure Franklin and Elgin Fields (South Central Graben, North Sea) contain abundant disseminated and concretionary...

Oil migration makes the difference: regional distribution of carbonate cement delta C-13 in northern North Sea Tertiary sandstones (2000)

Macaulay, C.I., Fallick, A.E., Haszeldine, R.S., McAulay, G.E.

Carbonate cements in Tertiary reservoir sandstones from the northern North Sea have distinctive carbon isotopic compositions (delta(13)C). Oil migration up faults from deeper structures and...

Methods of laser-based stable isotope measurement applied to diagenetic cements and hydrocarbon reservoir quality (2000)

Macaulay, C.I., Fallick, A.E., Haszeldine, R.S., Graham, C.M.

The stable isotopic compositions of diagenetic minerals can provide valuable constraints on the sources, precipitation temperatures and relative timing of cements in reservoir rocks. This type of...

Quartz cementation inhibited by crestal oil charge: Miller deep water sandstone, UK North Sea (2000)

Marchand, A.M.E., Haszeldine, R.S., Macaulay, C.I., Swennen, R., Fallick, A.E.

In the Miller Field, diagenetic quartz abundance, isotopic compositions and salinities of quartz-cementing fluids display a distinct pattern which is related to the structural depth of the reservoir...

Sulphur isotope variations in diagenetic pyrite from core plug to sub-millimetre scales (2000)

McConville, P., Boyce, A.J., Fallick, A.E., Harte, B., Scott, E.M.

Sulphur isotope ratio measurements (delta(34)S) of diagenetic pyrite an commonly used to identify S sources and mechanisms of sulphide formation in basinal sediments. This study reports: such data...

Use of compound-specific stable isotope analysis to source anthropogenic natural gas-derived polycyclic aromatic hydrocarbons in a lagoon sediment (2000)

McRae, C., Snape, C.E., Sun, C.G., Fabbri, D., Tartari, D., Trombini, C., ...

This paper reports the first identification of polycyclic aromatic hydrocarbons (PAHs) in the environment with extremely low carbon stable isotopic ratios. For sediments collected from a coastal...

Palaeoproterozoic magnesite-stromatolite-dolostone-'red bed' association, Russian Karelia: palaeoenvironmental constraints on the 2.0 Ga-positive carbon isotope shift (2000)

Melezhik, V.A., Fallick, A.E., Medvedev, P.V., Makarikhin, V.V.

The ca. 2000 Ma. Tulomozerskaya Formation, Russian Karelia, is composed of an 800 m-thick magnesite-stromatolite-dolostone- 'red bed' succession with the most C-13-rich dolostones (up to +18 parts...

Depositional environment and apparent age of the Fauske carbonate conglomerate, North Norwegian Caledonides (2000)

Melezhik, V.A., Heldal, T., Roberts, D., Gorokhov, I.M., Fallick, A.E.

The Fauske conglomerate represents a rather rare case of a monomict carbonate conglomerate in the Late Neoproterozoic to Silurian, lithostratigraphic successionsof the Norwegian Caledonides....

Regional fluid flow and gold mineralization in the Dalradian of the Sperrin Mountains, northern Ireland (2000)

Parnell, J., Earls, G., Wilkinson, J.J., Hutton, D.H.W., Boyce, A.J., Fallick, A.E., ...

Gold vein mineralization occurs in the metamorphosed and deformed Dalradian (Neoproterozoic) rocks of the Sperrin Mountains, Northern Ireland. Two structures exerted a control on the location of the...

Evolution and paragenetic context of low delta D hydrothermal fluids from the Panasqueira W-Sn deposit, Portugal: New evidence from microthermometric, stable isotope, noble gas and halogen analyses of primary fluid inclusions (2000)

Polya, D.A., Foxford, K.A., Stuart, F., Boyce, A., Fallick, A.E.

The evolution, paragenetic context and origin of remarkably low delta D hydrothermal fluids from the Hercynian Panasqueira W- Sn-Cu(Ag) deposit have been investigated through a combined...

δ13C values of lipids from phototrophic zone microplankton and bathypelagic shrimps at the Azores sector of the Mid-Atlantic Ridge (2000)

Pond, D.W., Sargent, J.R., Fallick, A.E., Allen, C., Bell, M.V., Dixon, D.R.

The lipid composition and δ13C values of phototrophic zone microplankton, and species of bathypelagic shrimp that are not associated with hydrothermal vents, were determined for samples...

The correlation of reaction and isotope fronts and the mechanism of metamorphic fluid flow (2000)

Skelton, A.D.L., Valley, J.W., Graham, C.M., Bickle, M.J., Fallick, A.E.

Infiltration of a metabasite sill From Islay, Scotland by an H2O-CO2 fluid caused (1) modification of. delta(18)O and (2) carbonation at the sill margins, Maps of delta(18)O and reaction progress...

Regional distribution of diagenetic carbonate cement in Palaeocene deepwater sandstones: North Sea (2000)

Stewart, R.N.T., Haszeldine, R.S., Fallick, A.E., Wilkinson, M., Macaulay, C.I.

Sandstones of the Palaeocene Montrose Group were deposited in a deepwater fan environment, and form a major oil reservoir in the North Sea. Calcite concretions occur commonly within thick- bedded and...

Siderite zonation within the Brent Group: microbial influence or aquifer flow? (2000)

Wilkinson, M., Haszeldine, R.S., Fallick, A.E., Osborne, M.J.

A three-fold zonation can he imaged within authigenic siderite from sandstones of the Brent Group using back-scatter SEM techniques. We interpret this zonation in terms of the biogeochemical zonation...

Stable isotopes of pedogenic carbonates from the Somma-Vesuvius area, southern Italy, over the past 18 kyr: palaeoclimatic implications (2000)

Zanchetta, G., Di Vito, M., Fallick, A.E., Sulpizio, R.

Stable isotopes were measured in the carbonate and organic matter of palaeosols in the Somma-Vesuvius area, southern Italy in order to test whether they are suitable proxy records for climatic and...

Genesis of vein stockwork and sedimentary magnesite and hydromagnesite deposits in the ultramafic terranes of southwestern Turkey: A stable isotope study (2000)

Zedef, V., Russell, M.J., Fallick, A.E., Hall, A.J.

Vein stockworks and lacustrine developments of cryptocrystalline magnesium carbonates of Neogene and Quaternary age occur within the partially serpentinized, discontinuous ultramafic belts of...

Mineralogy, sulphur isotope geochemistry and the development of sulphide structures at the Broken Spur hydrothermal vent site, 29°10'N, Mid-Atlantic ridge (1998)

Butler, I.B., Fallick, A.E., Nesbitt, R.W.

A large collection of hydrothermal sulphides from the Broken Spur hydrothermal vent site, including representative samples of mound sulphide materials, has been characterized using optical mineralogy...

Stable-carbon-isotope composition of fatty acids in hydrothermal vent mussels containing methanotrophic and thiotrophic bacterial endosymbionts (1998)

Pond, D.W., Bell, M.V., Dixon, D.R., Fallick, A.E., Segonzac, M., Sargent, J.R.

Fatty acid biomarker analysis coupled with gas chromatography-isotope ratio mass spectrometry was used to confirm the presence of methanotrophic and thiotrophic bacterial endosymbionts in the tissues...

2000-Ma sulphide concretions from the 'Productive' Formation of the Pechenga Greenstone Belt, NW Russia: genetic history based on morphological and isotopic evidence (1998)

Melezhik, V.A., Grinenko, L.N., Fallick, A.E.

Two hundred and fifty-nine sulphide samples from black shales of the 'Productive' Formation belonging to the Palaeoproterozoic (2000 Ma) Petsamo Supergroup in the Kola region (NW Russia) have been...

Ore depositional processes in the Navan Zn-Pb deposit, Ireland (1998)

Anderson, I.K., Ashton, J.H., Boyce, A.J., Fallick, A.E., Russell, M.J.

The Navan Zn-Pb deposit in Ireland is hosted by a lower Carboniferous, carbonate-dominated sedimentary sequence. In excess of 97 percent of the ore is hosted by a Courceyan, shallow-water succession...

Tourmaline in a sub-Cambrian palaeosol on the proterozoic Lewisian rocks of NW Scotland (1998)

Ferguson, L.K., Fallick, A.E., Allison, I.

Tourmaline, not hitherto recorded in Lewisian rocks of Sutherland, nor reported as a secondary mineral in Precambrian palaeosols, occurs in a late Proterozoic, sub-Cambrian palaeosol in NW Scotland....

Variations in the stable isotope ratios of specific aromatic and aliphatic hydrocarbons from coal conversion processes (1998)

McRae, C., Snape, C.E., Fallick, A.E.

To establish the scope for applying gas chromatography-isotope ratio mass spectrometry (δ13C GC-IRMS) to molecular recognition problems in coal utilisation, 13C/12C isotope ratios were determined...

Quartz veins record vertical flow at a Graben Edge; Fulmar oil field, central North Sea (1997)

Macaulay, C.I., Boyce, A.J., Fallick, A.E., Haszeldine, R.S.

The Fulmar oil field lies at the faulted western margin of the Central Graben in the central North Sea. Chalcedony and quartz, and later dolomite, occur as diagenetic cements in veins within the...

Imported quartz cement in aeolian sandstone grew from water of uniform composition but has complex zonation (1997)

Sullivan, M.D., Macaulay, C.I., Fallick, A.E., Haszeldine, R.S.

The origins and volumes of waters which mass-transport silica in sedimentary basins remain obscure. Many previous analytical studies have illustrated cases where quartz cements in sandstones...

Fluid flow and diffusion in the Waterville limeston, South-Central Maine: constraints from strontium, oxygen and carbon isotope profiles (1997)

Bickle, M.J., Chapman, H.J., Ferry, J.M., Rumble III, D., Fallick, A.E.

Oxygen, carbon and strontium isotopic profiles across the margin of the Waterville limestone member are used to investigate advective and diffusive transport during metamorphism of the Waterville...

Lipid and lipid carbon stable isotope compositon of the hydrothermal vent shrimp Mirocaris fortunata: evidence for nutritional dependence on photosynthetically fixed carbon (1997)

Pond, D.W., Segonzac, M., Bell, M.V., Dixon, D.R., Fallick, A.E., Sargent, J.R.

Mirocaris fortunata were sampled from the Lucky Strike hydrothermal vent area (Eiffel Tower site) on the mid-Atlantic ridge during the French DIVA 2 cruise (June 1994). Small adults (17 to 22 mm...

A fluid inclusion and stable isotope study of 200 Ma of fluid evolution in the Galway Granite, Connemara, Ireland (1997)

O'Reilly, C., Jenkin, G.R.T., Feely, M., Alderton, D.H.M., Fallick, A.E.

Fluid inclusions in granite quartz and three generations of veins indicate that three fluids have affected the Caledonian Galway Granite. These fluids were examined by petrography, microthermometry,...

Occurrence of 16:2(n-4) and 18:2(n-4) fatty acids in the lipids of the hydrothermal vent shrimps Rimicaris exoculata and Alvinocaris markensis: nutritional and trophic implications (1997)

Pond, D.W., Dixon, D.R., Bell, M.V., Fallick, A.E., Sargent, J.R.

Adults of 2 species of vent shrimp, Rimicaris exoculata and Alvinocaris markensis, were sampled from the Snake Pit and TAG hydrothermal vent sites on the mid-Atlantic ridge. Fatty acid analyses...

Illite dates record deep fluid movements in petroleum basins (1997)

Darby, D., Wilkinson, M., Fallick, A.E., Haszeldine, R.S.

K-Ar age dates of authigenic illite from sandstones in the UK south Central Graben have a bimodal distribution. In contrast to established hypotheses of thermal triggers, this illite growth is...

The recognition of meteoric-hydrothermal and supergene processes in volcanic carbonatites, Nyanza Rift, western Kenya, using carbon and oxygen isotopes (1997)

Onuonga, I.O., Fallick, A.E., Bowden, P.

Carbon and O isotopic compositions were determined for calcite and siderite from the Buru and Kuge carbonatite centres. Wide ranges in the isotopic compositions of these minerals were observed with...

Clay- and zeolite-bearing Triassic sediments at Kaka Point, New Zealand; evidence of microbially influenced mineral formation from earliest diagenesis into the lowest grade of metamorphism (1997)

Jeans, C.V., Fallick, A.E., Fisher, M.J., Merriman, R.J., Corfield, R.M., Manighetti, B.

The distribution, mineralogy, petrology and bulk and stable isotope chemistry of altered volcanic ash beds in the marine sediments of Mid-Triassic age (Etalian) at Kaka Point, New Zealand, are...

The evolution of fluorine-rich felsic magmas: source dichotomy, magmatic convergence and the origins of topaz granite (1997)

Taylor, R.P., Fallick, A.E.

Topaz granite is alkali-feldspar granite that contains essential albite, quartz, K-feldspar, lithium-mica, and topaz. As a group topaz granites are characterized by their extreme enrichment in F (up...

Links between Palaeoproterozoic palaeogeography and rise and decline of stromatolites: Fennoscandian Shield (1997)

Melezhik, V.A., Fallick, A.E., Makarikhin, V.V., Lyubtsov, V.V.

Through a review of literature and new data we have documented two major events in the Palaeoproterozoic history of stromatolites as indicated by palaeontological and palaeoenvironmental studies....

Evaluating southern Red Sea corals as a proxy record for the Asian monsoon (1997)

Klein, R., Tudhope, A.W., Chilcott, C.P., Patzold, J., Abdulkarim, Z., Fine, M., ...

Coral palaeoclimatic studies are under way at many sites throughout the wet tropics. However, arid environments have received less attention. Here we report a high-resolution, 63 yr record of coral...

Provenance of Upper Precambrian-Lower Cambrian shales in the Central Iberian Zone, Spain: evidence from a chemical and isotopic study (1997)

Ugidos, J.M., Valladares, M.I., Recio, C., Rogers, G., Fallick, A.E., Stephens, E.E.

Geochemical and isotopic (Sr, Nd, O) data are presented for Upper Precambrian and Lower Cambrian shale sequences from the Central Iberian Zone, Spain, in order to define geochemical discriminants...

Two billion year old isotopically heavy carbon: evidence from the Labrador Trough, Canada (1997)

Melezhik, V.A., Fallick, A.E., Clark, T.

Forty-eight samples of bulk carbonates were studied from the Dunphy, Portage, Alder, Uvé, Denault, and Abner formations and the undivided Pistolet subgroup in the Labrador Trough, Quebec, Canada....

Spheroidal dolomites in a Visean karst system - bacterial induced origin? (1997)

Nielsen, P., Swennen, R., Dickson, J.A.D., Fallick, A.E., Keppens, E.M.

Spheroidal dolomite crystals occur in the karstified top of a Dinantian dolomite sequence in eastern Belgium. The spheroidal dolomite crystals are best developed at the base of the karst system. The...

Fluid Flow and Diffusion in the Waterville Limestone, South--Central Maine: Constraints from Strontium, Oxygen and Carbon Isotope Profiles (1997)

Bickle, M. J., Chapman, H. J., Ferry, J. M., Rumble, D., Fallick, A. E.

Oxygen, carbon and strontium isotopic profiles across the margin of the Waterville limestone member are used to investigate advective and diffusive transport during metamorphism of the Waterville...

Volatile characteristics of peralkaline rhyolites from Kenya: an ion microprobe, infrared spectroscopic and hydrogen isotope study. (1993)

Wilding, M. C., Macdonald, R., Davies, J. E., Fallick, A. E.

Peralkaline rhyolites of the Greater Olkaria Volcanic Complex, Kenya Rift Valley, were derived from separated, though closely related, magma chambers. Ion microprobe analyses of glass inclusions in...

Oxygen and Hydrogen Isotope Geochemistry of the Mourne Mountains Tertiary Granites, Northern Ireland (1993)

MCCORMICK, A. G., FALLICK, A. E., HARMON, R. S., MEIGHAN, I. G., GIBSON, D.

An oxygen and hydrogen isotopic study of minerals and whole rocks from the granites of the Mourne Mountains Tertiary complex, and related rocks, shows that whereas a significant circulation of...

The origin of clay minerals in active and relict hydrothermal deposits

Severmann, S., Mills, R.A., Palmer, M.R., Fallick, A.E.

Samples of Fe-oxide-rich hydrothermal sediments were collected from active and inactive portions of the TransAtlantic Geotraverse (TAG) hydrothermal field on the Mid-Atlantic Ridge. Clays separated...

87Sr/86Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales

Thomas, C.W., Graham, C.M., Ellam, R.M., Fallick, A.E.

New calcite 87Sr/86Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater...

Metamorphic and Basin Fluids in Quartz-Carbonate-Sulphide Veins in the SW Scottish Highlands: a Stable Isotope and Fluid Inclusion Study

Anderson, R., Graham, C.M., Boyce, A.J., Fallick, A.E.

Metalliferous (Fe-Cu-Pb-Zn) quartz-carbonate-sulphide veins cut greenschist to epidote-amphibolite facies metamorphic rocks of the Dalradian, SW Scottish Highlands, with NE-SW to NW-SE trends,...

Oxygen isotope composition and geothermometry of granulite to greenschist facies metamorphic rocks: a study from the Neoproterozoic collision-related nappe system, south of Sao Francisco Craton, SE Brazil

Neto, M.C.C., Fallick, A.E.

Oxygen isotope studies were carried out across units of a Neoproterozoic nappe system, south of Sao Francisco Craton. A temperature decrease toward the base of the system is found, consistent with a...

A model for the origin of AI-rich efflorescences near fumaroles, Melos, Greece: enhanced weathering in a geothermal setting

Hall, A.J., Fallick, A.E., Perdikatsis, V., Photos-Jones, E.

Efflorescences in the geothermal field of SE Melos, Greece, contain significant amounts of hydrated Al sulphate, alunogen, which could represent the Melian alumen exploited in Roman times and...

Melt generation and fluid flow in the thermal aureole of the Bushveld Complex

Harris, N., McMillan, A., Holness, M., Uken, R., Watkeys, M., Rogers, N., ...

Granite sheets emplaced into the migmatite zone of the eastern contact aureole of the Bushveld Complex resulted from fluid-enhanced, incongruent biotite melting of the underlying Silverton Formation...

The structural and diagenetic evolution of injected sandstones: examples from the Kimmeridgian of NE Scotland

Jonk, R., Duranti, D., Parnell, J., Hurst, A., Fallick, A.E.

Abstract: Injected sandstones occurring in the Kimmeridgian of NE Scotland along the bounding Great Glen and Helmsdale faults formed when basinal fluids moved upward along the fault zones, fluidizing...

Sr isotope composition in paleoproterozoic carbonates extremely enriched in 13C: Kaniapiskau supergroup, the Labrador trough of the Canadian shield

Kuznetsov, A.B., Melezhik, V.A., Gorokhov, I.M., Melnikov, N.N., Fallick, A.E.

Paleoproterozoic dolostones of the Dunphy, Portage, Alder, and Uve formations representing lower horizons of the Kaniapiskau Supergroup in the Labrador trough of the Canadian Shield are remarkable,...

Fractionation of carbon and oxygen isotopes in 13C-rich Palaeoproterozoic dolostones in the transition from medium-gradegreenschist facies: a case study from the Kola Superdeep Drillhole

Melezhik, V.A., Fallick, A.E., Smirnov, Y.P., Yakovlev, Y.N.

Samples from the Kola Superdeep Drillhole (12 262 m), a deep drillhole (1060 m), and from the surface, seaprated by only around 10 km, provided a unique opportunity for direct tracing of delta(13)C...

δ13C and δ18O variations in primary and secondary carbonate phases: several contrasting examples from Palaeoproterozoic 13C-rich metamorphosed dolostones

Melezhik, V.A., Fallick, A.E.

The Palaeoproterozoic Kuetsjarvi Sedimentary Formation from the Pechenga Greenstone Belt, NW Russia, has been studied with the purpose of determining δ13Ccarb and δ18Ocarb values in various...

Timing and genesis of base- metal mineralisation in black shales of the Upper Permian Ravnefjeld Formation, Wegener Halvo, East Greenland

Pedersen, M., Nielsen, J.K., Boyce, A.J., Fallick, A.E.

Bituminous mud shales of the Upper Permian Ravnefjeld Formation (Zechstein I equivalent) are mineralised with zinc, lead and copper within a ca. 50 km 2 area on Wegener Halvo in central East...

Source and evolution of ore-forming hydrothermal fluids in the northern Iberian Pyrite Belt massive sulphide deposits (SW Spain): evidence from fluid inclusions and stable isotopes

Sánchez-España, J., Velasco, F., Boyce, A.J., Fallick, A.E.

A fluid inclusion and stable isotopic study has been undertaken on some massive sulphide deposits (Aguas Teñidas Este, Concepción, San Miguel, San Telmo and Cueva de la Mora) located in the...

Sulphur isotope composition of silurian shale-hosted PGE-Ag-Au- Zn-Cu mineralisations of the Prades Mountains (Catalonia, Spain)

Alfonso, P., Canet, C., Melgarejo, J.C., Fallick, A.E.

Several Silurian metamorphosed shale-hosted sulphide occurrences have been studied in the Prades Mountains, southern part of the Coastal Catalonian Ranges. Most of the sulphides are found as...

Timing of interplay between hydrothermal and surface fluids in the Navan Zn plus Pb orebody, Ireland: Evidence from metal distribution trends, mineral textures, and delta S-34 analyses

Blakeman, R.J., Ashton, J.H., Boyce, A.J., Fallick, A.E., Russell, M.J.

Models of genesis for the Navan orebody are of two distinct types. An early hypothesis that mesothermal (though nonmagmatic) deposition of ore began when a supernatant seawater brine still had access...

Determination of rhizosphere C-13 pulse signals in soil thin sections by laser ablation isotope ratio mass spectrometry

Bruneau, P.M.C., Ostle, N., Davidson, D.A., Grieve, I.C., Fallick, A.E.

In grassland ecosystems, soil animals act as key soil engineers and architects. The diversity of soil animals is also a regulator of ecosystem carbon flow. However, our understanding of the link...

Pore water evolution in oilfield sandstones: constraints from oxygen isotope microanalyses of quartz cement

Marchand, A.M.E., Macaulay, C.I., Haszeldine, R.S., Fallick, A.E.

Oxygen isotope microanalyses of authigenic quartz, in combination with temperatures of quartz precipitation constrained. by fluid inclusion microthermometry and burial history modelling, are employed...

Stable isotope study of the igneous, metamorphic and mineralized rocks of the Edough complex, Annaba, Northeast Algeria

Laouar, R., Boyce, A.J., Ahmed-Said, Y., Ouabadi, A., Fallick, A.E., Toubal, A.

The petrogenesis of igneous, metamorphic and mineralized rocks in the Edough massif, NE Algeria, indicates an interplay between crustal and magmatic sources, and magmatic and surface fluids, as...

Isotopic stratigraphy suggests Neoproterozoic ages and Laurentian ancestry for high-grade marbles from the North- Central Norwegian Caledonides

Melezhik, V.A., Gorokhov, I.M., Fallick, A.E., Roberts, D., Kuznetsov, A.B., Zwaan, K.B., ...

Carbon and strontium isotope stratigraphy has been applied to constrain the depositional ages of high-grade marble sequences in the Ofoten district of the North-Central Norwegian Caledonides. Two...

Note on the importance of hydrocarbon fill for reservoir quality prediction in sandstones

Marchand, A.M.E., Smalley, P.C., Haszeldine, R.S., Fallick, A.E.

Oil emplacement retarded the rate of quartz cementation in the Brae Formation deep-water sandstone reservoirs of the Miller and Kingfisher fields (United Kingdom North Sea), thus preserving porosity...

Use of stable oxygen isotope determinations from brachiopod shells in palaeoenvironmental reconstruction

Curry, G.B., Fallick, A.E.

Stable oxygen isotope analyses were obtained from fossil brachiopod shells from a shallow marine deposit of Upper Pleistocene age (approximately 80 ka) in New Zealand as part of a palaeoenvironmental...

Isotopic evidence for a complex Neoproterozoic to Silurian rock assemblage in the North-Central Norwegian Caledonides

Melezhik, V.A., Roberts, D., Gorokhov, I.M., Fallick, A.E., Zwaan, K.B., Kuznetsov, A.B., ...

Depositional ages of high-grade marble sequences in the Ofoten district of the North-Central Norwegian Caledonides have been constrained by the application of carbon and strontium isotope...

Picritic magmas and the Rum ultramafic complex, Scotland

Upton, B.G.J., Skovgaard, A.C., McClurg, J., Kirstein, L., Cheadle, M., Emeleus, C.H., ...

Three small picritic dykes, intruded at a late stage in the evolution of the Rum basic-ultra-basic complex, Inner Hebrides, shed new light on the nature of the magmas responsible for the main...

Laser combustion analysis of delta S-34 of sulfosalt minerals: Determination of the fractionation systematics and some crystal-chemical considerations

Wagner, T., Boyce, A.J., Fallick, A.E.

Laser sulfur combustion in the presence of 0, is the most commonly used method of in situ sulfur isotope analysis. Previous workers indicated that a small but reproducible fractionation of (34S)/S-32...

Interpretive problems in a search for micro-invertebrate fossils from a neoproterozoic limestone in Namibia

Brain, C.K., Coetzee, J., Botha, A.J., Hoffmann, K.H., Prave, A.R., Fallick, A.E.

Attention is focussed on a carbonate sequence in the Auros Formation of the Otavi Group in northern Namibia, where several limestone layers are found to have been phosphatised. These contain an...

Bacteria were responsible for the magnitude of the world-class hydrothermal base metal sulfide orebody at Navan Ireland

Fallick, A.E., Ashton, J.H., Boyce, A.J., Ellam, B.M., Russell, M.J.

We report sulfur and lead isotope analyses of mine concentrates from Navan, the largest zinc deposit in Ireland. These samples, each representing up to a million tonnes of ore, show very limited...

87Sr/86Sr: A new discriminant for provenancing neolithic porcellanite artifacts from Ireland

Curran, J.M., Meighan, I.G., Simpson, D.D.A., Rogers, G., Fallick, A.E.

Antrim porcellanite (thermally metamorphosed Tertiary laterite) was the most common raw material used in the production of stone implements during the Neolithic in Ireland and was worked at two...

Carbonate diagenesis in a high transmissivity coastal aquifer, Biscayne Aquifer, southeastern Florida, USA

Maliva, R.G., Missimer, T.M., Walker, C.W., Owosina, E.S., Dickson, J.A.D., Fallick, A.E.

Cores collected through the Biscayne Aquifer (Plio-Pleistocene) in Hollywood, southeastern Florida, as part of the Hollywood Coastal Salinity Barrier Project provided an opportunity to examine the...

Evidence for reduced quartz-cementation rates in oil-filled sandstones

Marchand, A.M.E., Haszeldine, R.S., Smalley, P.C., Macaulay, C.I., Fallick, A.E.

When quartz-rich sands are buried and heated, pore space is gradually filled by precipitation of quartz cement from aqueous formation fluids. Here we examine whether the presence of oil in the pore...

Palaeoproterozoic travertines of volcanic affiliation from a C- 13-rich rift lake environment

Melezhik, V.A., Fallick, A.E.

The ca. 2.2 Ga Kuetsjarvi Sedimentary Formation (KSF) of the Pechenga Greenstone Belt, the north-east Fennoscandian Shield, contains the oldest travertines so far reported in the literature. The...

Palaeoproterozoic magnesite: lithological and isotopic evidence for playa/sabkha environments

Melezhik, V.A., Fallick, A.E., Medvedev, P.V., Makarikhin, V.V.

Magnesite forms a series of 1- to 15-m-thick beds within the approximate to2.0 Ga (Palaeoproterozoic) Tulomozerskaya Formation, NW Fennoscandian Shield, Russia. Drillcore material together with...

Strontium and carbon isotope geochemistry applied to dating of carbonate sedimentation: an example from high-grade rocks of the Norwegian Caledonides

Melezhik, V.A., Gorokhov, I.M., Fallick, A.E., Gjelle, S.

'Isotope stratigraphy' has been applied to an undated, high- grade carbonate sequence from the Norwegian Caledonides in order to constrain the depositional age. Sokumfjell Group marbles of the Beiarn...

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating'

Melezhik, V.A., Gorokhov, I.M., Kuznetsov, A.B., Fallick, A.E.

The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its...

Degassing at the Soufriere Hills Volcano, Montserrat, recorded in matrix glass compositions

Harford, C.L., Sparks, R.S.J., Fallick, A.E.

Compositions of matrix glasses from the current eruption of Soufriere Hills Volcano indicate that decompression-driven crystallization results in 20-70 wt % groundmass crystallization during eruption...

Subaerial exposure surfaces in a Palaeoproterozoic 13C-rich dolostone sequence from the Pechenga Greenstone Belt: palaeoenvironmental and isotopic implications for the 2330-2060 Ma global isotope excursion of 13C/12C

Melezhik, V.A., Fallick, A.E., Grillo, S.M.

This article reports the discovery of numerous subaerial exposure surfaces which occur in the ca. 2200 Ma Kuetsjdrvi Sedimentary Formation (KSF) from the Pechenga Greenstone Belt, NE Fennoscandian...

A Study of Carbon and Nitrogen Stable Isotope and Elemental Ratios as Potential Indicators of Source and Fate of Organic Matter in Sediments of the Forth Estuary, Scotland

Graham, M.C., Eaves, M.A., Farmer, J.G., Dobson, J., Fallick, A.E.

The purpose of this study was to investigate the importance of both natural and anthropogenic sources of organic matter in bottom sediments of the Forth Estuary, east Scotland, U.K. Organic matter...

Relationships between hornblende K-Ar ages, chemical composition and hydrogen isotopes, Connemara, western Ireland: evidence for a massive extinct hydrothermal system

Jappy, T.G., Leake, B.E., Fallick, A.E.

Major element compositional analyses, K-Ar ages, deltaD parts per thousand and delta O-18 parts per thousand values for 30 zoned and unzoned hornblendes from Dalradian amphibolites and metagabbros....

Estimates of sulphate reduction rates in Lake Vanda, Antarctica support the proposed recent history of the lake

Purdy, K.J., Hawes, I., Bryant, C.L., Fallick, A.E., Nedwell, D.B.

Lake Vanda, a perennially ice-covered Antarctic lake has a highly stratified structure with a pronounced density gradient from 45 m and is anoxic from 68 rn down. In order to gain a greater...

Assessment of grid-based whole-rock delta D surveys in exploration: Boulder County epithermal tungsten deposit, Colorado

Rice, C.M., Harmon, R.S., Boyce, A.J., Fallick, A.E.

Important epithermal tungsten mineralization in the Boulder County district is mainly hosted by quartz-ferberite (FeWO4) veins. Isotopic studies based on an extensive grid (deltaD) and individual...

Denitrification and phenol degradation in a contaminated aquifer

Spence, M.J., Bottrell, S.H., Higgo, J.J.W., Harrison, I., Fallick, A.E.

A natural groundwater system modified by pollutant phenols and agricultural nitrate has been modelled in the laboratory by a series of sacrificial microcosm experiments. Samples of aquifer sediment...

Disseminated 'jigsaw piece' dolomite in Upper Jurassic shelf sandstones, Central North Sea: an example of cement growth during bioturbation

Hendry, J.P., Wilkinson, M., Fallick, A.E., Trewins, N.H.

Unusual textural and chemical characteristics of disseminated dolomite in Upper Jurassic shelf sediments of the North Sea have provided the basis for a proposed new interpretation of early diagenetic...

The nature and genesis of gold-silver-tellurium mineralization in the Metaliferi Mountains of western Romania

Alderton, D.H.M., Fallick, A.E.

Precious metal (Au, Ag) and base metal (Pb, Zn) deposits in the Metaliferi Mountains of western Romania occur in steeply clipping quartz-Ca/Mn carbonate veins, which are hosted by Miocene andesitic...

Sourcing of fossil fuel-derived PAH in the environment

McRae, C., Sun, C.G., McMillan, C., Snape, C.E., Fallick, A.E.

To investigate the effects of domestic coal burning on the distribution and isotopic composition of environmental PAH, a series of soil samples were collected in a coal-burning village nearby...

Metamorphic reactions in the biotite zone, eastern Scotland: high thermal gradients, metasomatism and cleavage formation

Dempster, T.J., Fallick, A.E., Whittemore, C.J.

Prograde metamorphic reactions involving the growth of phyllosilicates and accompanying cleavage development have been investigated in Dalradian metasediments from the biotite zone of eastern...

Retrogression by deep infiltration of meteoric fluids into thrust zones during late-orogenic rapid unroofing

Barker, A.J., Bennett, D.G., Boyce, A.J., Fallick, A.E.

Hypersaline (Na-Ca-Cl) fluids are associated with late-stage quartz veining and retrogression of garnet, kyanite and other high P-T phases in the vicinity of thrusts and major lithological boundaries...

From basin to basement: the movement of surface fluids into the crust

Gleeson, S.A., Yardley, B.W.D., Boyce, A.J., Fallick, A.E., Munz, L.A.

Quartz veins from Precambrian, high grade, basement rocks in Southern Norway contain both aqueous and biogenically sourced hydrocarbon fluid inclusions. Aqueous fluids show a wide range in salinities...

Sandstone cementation and fluids in hydrocarbon basins

Haszeldine, R.S., Macaulay, C.I., Marchand, A., Wilkinson, M., Graham, C.M., Cavanagh, A., ...

Are porewater flow or stasis exclusive hypotheses? We think there is an intermediate view. Processes governing sandstone cementation in the deep sub-surface are elusive, case-specific and difficult...

Ankerite cementation in deeply buried Jurassic sandstone reservoirs of the central North Sea

Hendry, J.P., Wilkinson, M., Fallick, A.E., Haszeldine, R.S.

Upper Jurassic Fulmar Formation shelf sandstones of the high- temperature, high-pressure Franklin and Elgin Fields (South Central Graben, North Sea) contain abundant disseminated and concretionary...

Oil migration makes the difference: regional distribution of carbonate cement delta C-13 in northern North Sea Tertiary sandstones

Macaulay, C.I., Fallick, A.E., Haszeldine, R.S., McAulay, G.E.

Carbonate cements in Tertiary reservoir sandstones from the northern North Sea have distinctive carbon isotopic compositions (delta(13)C). Oil migration up faults from deeper structures and...

Methods of laser-based stable isotope measurement applied to diagenetic cements and hydrocarbon reservoir quality

Macaulay, C.I., Fallick, A.E., Haszeldine, R.S., Graham, C.M.

The stable isotopic compositions of diagenetic minerals can provide valuable constraints on the sources, precipitation temperatures and relative timing of cements in reservoir rocks. This type of...

Quartz cementation inhibited by crestal oil charge: Miller deep water sandstone, UK North Sea

Marchand, A.M.E., Haszeldine, R.S., Macaulay, C.I., Swennen, R., Fallick, A.E.

In the Miller Field, diagenetic quartz abundance, isotopic compositions and salinities of quartz-cementing fluids display a distinct pattern which is related to the structural depth of the reservoir...

Sulphur isotope variations in diagenetic pyrite from core plug to sub-millimetre scales

McConville, P., Boyce, A.J., Fallick, A.E., Harte, B., Scott, E.M.

Sulphur isotope ratio measurements (delta(34)S) of diagenetic pyrite an commonly used to identify S sources and mechanisms of sulphide formation in basinal sediments. This study reports: such data...

Use of compound-specific stable isotope analysis to source anthropogenic natural gas-derived polycyclic aromatic hydrocarbons in a lagoon sediment

McRae, C., Snape, C.E., Sun, C.G., Fabbri, D., Tartari, D., Trombini, C., ...

This paper reports the first identification of polycyclic aromatic hydrocarbons (PAHs) in the environment with extremely low carbon stable isotopic ratios. For sediments collected from a coastal...

2000-Ma sulphide concretions from the 'Productive' Formation of the Pechenga Greenstone Belt, NW Russia: genetic history based on morphological and isotopic evidence

Melezhik, V.A., Grinenko, L.N., Fallick, A.E.

Two hundred and fifty-nine sulphide samples from black shales of the 'Productive' Formation belonging to the Palaeoproterozoic (2000 Ma) Petsamo Supergroup in the Kola region (NW Russia) have been...

Palaeoproterozoic magnesite-stromatolite-dolostone-'red bed' association, Russian Karelia: palaeoenvironmental constraints on the 2.0 Ga-positive carbon isotope shift

Melezhik, V.A., Fallick, A.E., Medvedev, P.V., Makarikhin, V.V.

The ca. 2000 Ma. Tulomozerskaya Formation, Russian Karelia, is composed of an 800 m-thick magnesite-stromatolite-dolostone- 'red bed' succession with the most C-13-rich dolostones (up to +18 parts...

Depositional environment and apparent age of the Fauske carbonate conglomerate, North Norwegian Caledonides

Melezhik, V.A., Heldal, T., Roberts, D., Gorokhov, I.M., Fallick, A.E.

The Fauske conglomerate represents a rather rare case of a monomict carbonate conglomerate in the Late Neoproterozoic to Silurian, lithostratigraphic successionsof the Norwegian Caledonides....

Regional fluid flow and gold mineralization in the Dalradian of the Sperrin Mountains, northern Ireland

Parnell, J., Earls, G., Wilkinson, J.J., Hutton, D.H.W., Boyce, A.J., Fallick, A.E., ...

Gold vein mineralization occurs in the metamorphosed and deformed Dalradian (Neoproterozoic) rocks of the Sperrin Mountains, Northern Ireland. Two structures exerted a control on the location of the...

Evolution and paragenetic context of low delta D hydrothermal fluids from the Panasqueira W-Sn deposit, Portugal: New evidence from microthermometric, stable isotope, noble gas and halogen analyses of primary fluid inclusions

Polya, D.A., Foxford, K.A., Stuart, F., Boyce, A., Fallick, A.E.

The evolution, paragenetic context and origin of remarkably low delta D hydrothermal fluids from the Hercynian Panasqueira W- Sn-Cu(Ag) deposit have been investigated through a combined...

δ13C values of lipids from phototrophic zone microplankton and bathypelagic shrimps at the Azores sector of the Mid-Atlantic Ridge

Pond, D.W., Sargent, J.R., Fallick, A.E., Allen, C., Bell, M.V., Dixon, D.R.

The lipid composition and δ13C values of phototrophic zone microplankton, and species of bathypelagic shrimp that are not associated with hydrothermal vents, were determined for samples...

The correlation of reaction and isotope fronts and the mechanism of metamorphic fluid flow

Skelton, A.D.L., Valley, J.W., Graham, C.M., Bickle, M.J., Fallick, A.E.

Infiltration of a metabasite sill From Islay, Scotland by an H2O-CO2 fluid caused (1) modification of. delta(18)O and (2) carbonation at the sill margins, Maps of delta(18)O and reaction progress...

Regional distribution of diagenetic carbonate cement in Palaeocene deepwater sandstones: North Sea

Stewart, R.N.T., Haszeldine, R.S., Fallick, A.E., Wilkinson, M., Macaulay, C.I.

Sandstones of the Palaeocene Montrose Group were deposited in a deepwater fan environment, and form a major oil reservoir in the North Sea. Calcite concretions occur commonly within thick- bedded and...

Siderite zonation within the Brent Group: microbial influence or aquifer flow?

Wilkinson, M., Haszeldine, R.S., Fallick, A.E., Osborne, M.J.

A three-fold zonation can he imaged within authigenic siderite from sandstones of the Brent Group using back-scatter SEM techniques. We interpret this zonation in terms of the biogeochemical zonation...

Stable isotopes of pedogenic carbonates from the Somma-Vesuvius area, southern Italy, over the past 18 kyr: palaeoclimatic implications

Zanchetta, G., Di Vito, M., Fallick, A.E., Sulpizio, R.

Stable isotopes were measured in the carbonate and organic matter of palaeosols in the Somma-Vesuvius area, southern Italy in order to test whether they are suitable proxy records for climatic and...

Genesis of vein stockwork and sedimentary magnesite and hydromagnesite deposits in the ultramafic terranes of southwestern Turkey: A stable isotope study

Zedef, V., Russell, M.J., Fallick, A.E., Hall, A.J.

Vein stockworks and lacustrine developments of cryptocrystalline magnesium carbonates of Neogene and Quaternary age occur within the partially serpentinized, discontinuous ultramafic belts of...

Palaeoclimatic implications of the growth history and stable isotope (delta O-18 and delta C-13) geochemistry of a Middle to Late Pleistocene stalagmite from central-western Italy

Drysdale, R.N., Zanchetta, G., Hellstrom, J.C., Fallick, A.E., Zhao, J.X., Isola, I., ...

The age structure and, stable isotope composition of a stalagmite (CC I) from an upland cave in central-western Italy were studied to investigate regional response to global climatic changes. Four...

Laser microprobe sulphur isotope analysis of arsenopyrite: experimental calibration and application to the Boliden Au-Cu- As massive sulphide deposit

Wagner, T., Boyce, A.J., Jonsson, E., Fallick, A.E.

Metamorphic remobilization of arsenopyrite-rich ores is a globally important process which can lead to significant concentrations of gold. In order to understand this and related processes, relations...

Basalt petrology, zircon ages and sapphire genesis from Dak Nong, southern Vietnam

Garnier, V., Ohnenstetter, D., Giuliani, G., Fallick, A.E., Trong, T.P., Quang, V.H., ...

Basalts associated with sapphire deposits are widespread in Europe, Africa, Asia and Australia. In Vietnam, blue, green and yellow sapphires are recovered from eluvial and alluvial placers hosted in...

Oxygen isotope composition as a tracer for the origins of rubies and sapphires

Giuliani, G., Fallick, A.E., Garnier, V., France-Lanord, C., Ohnenstetter, D., Schwarz, D.

Oxygen isotopic compositions of rubies and sapphires from 106 deposits worldwide, as well as heated natural corundum, have been measured in this study. Artificially heated corundums have the same...

Boron and calcium isotope composition in Neoproterozoic carbonate rocks from Namibia: evidence for extreme environmental change

Kasemann, S.A., Hawkesworth, C.J., Prave, A.R., Fallick, A.E., Pearson, P.N.

The level and evolution of atmospheric carbon dioxide throughout Earth's history are key issues for palaeoclimate reconstructions, especially during times of extreme climate change such as those that...

Geochemical preservation potential of high-grade calcite marble versus dolomite marble: implication for isotope chemostratigraphy

Melezhik, V.A., Roberts, D., Fallick, A.E., Gorokhov, I.M., Kusnetzov, A.B.

The Neoproterozoic Hekkelstrand Marble from the North-Central Norwegian Catedonides contains a calcite marble unit hosting a commercially exploited white dolomite marble deposit, which underwent...

Palaeoproterozoic evaporites in Fennoscandia: implications for seawater sulphate, the rise of atmospheric oxygen and local amplification of the delta C-13 excursion

Melezhik, V.A., Fallick, A.E., Rychanchik, D.V., Kuznetsov, A.B.

This paper addresses global oxygenation and establishment of a marine sulphate reservoir in the Palaeoproterozoic. We report syn-depositional, marine, anhydrite-containing pseudomorphs after...

Barite-pyrite mineralization of the Wiesbaden thermal spring system, Germany: a 500-kyr record of geochemical evolution

Wagner, T., Kirnbauer, T., Boyce, A.J., Fallick, A.E.

Barite-(pyrite) mineralizations from the thermal springs of Wiesbaden, Rhenish Massif, Germany, have been studied to place constraints on the geochemical evolution of the hydrothermal system in space...

The origin of clay minerals in active and relict hydrothermal deposits

Severmann, S., Mills, R.A., Palmer, M.R., Fallick, A.E.

Samples of Fe-oxide-rich hydrothermal sediments were collected from active and inactive portions of the TransAtlantic Geotraverse (TAG) hydrothermal field on the Mid-Atlantic Ridge. Clays separated...

87Sr/86Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales

Thomas, C.W., Graham, C.M., Ellam, R.M., Fallick, A.E.

New calcite 87Sr/86Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater...

Metamorphic and Basin Fluids in Quartz-Carbonate-Sulphide Veins in the SW Scottish Highlands: a Stable Isotope and Fluid Inclusion Study

Anderson, R., Graham, C.M., Boyce, A.J., Fallick, A.E.

Metalliferous (Fe-Cu-Pb-Zn) quartz-carbonate-sulphide veins cut greenschist to epidote-amphibolite facies metamorphic rocks of the Dalradian, SW Scottish Highlands, with NE-SW to NW-SE trends,...

Oxygen isotope composition and geothermometry of granulite to greenschist facies metamorphic rocks: a study from the Neoproterozoic collision-related nappe system, south of Sao Francisco Craton, SE Brazil

Neto, M.C.C., Fallick, A.E.

Oxygen isotope studies were carried out across units of a Neoproterozoic nappe system, south of Sao Francisco Craton. A temperature decrease toward the base of the system is found, consistent with a...

A model for the origin of AI-rich efflorescences near fumaroles, Melos, Greece: enhanced weathering in a geothermal setting

Hall, A.J., Fallick, A.E., Perdikatsis, V., Photos-Jones, E.

Efflorescences in the geothermal field of SE Melos, Greece, contain significant amounts of hydrated Al sulphate, alunogen, which could represent the Melian alumen exploited in Roman times and...

Melt generation and fluid flow in the thermal aureole of the Bushveld Complex

Harris, N., McMillan, A., Holness, M., Uken, R., Watkeys, M., Rogers, N., ...

Granite sheets emplaced into the migmatite zone of the eastern contact aureole of the Bushveld Complex resulted from fluid-enhanced, incongruent biotite melting of the underlying Silverton Formation...

The structural and diagenetic evolution of injected sandstones: examples from the Kimmeridgian of NE Scotland

Jonk, R., Duranti, D., Parnell, J., Hurst, A., Fallick, A.E.

Abstract: Injected sandstones occurring in the Kimmeridgian of NE Scotland along the bounding Great Glen and Helmsdale faults formed when basinal fluids moved upward along the fault zones, fluidizing...

Sr isotope composition in paleoproterozoic carbonates extremely enriched in 13C: Kaniapiskau supergroup, the Labrador trough of the Canadian shield

Kuznetsov, A.B., Melezhik, V.A., Gorokhov, I.M., Melnikov, N.N., Fallick, A.E.

Paleoproterozoic dolostones of the Dunphy, Portage, Alder, and Uve formations representing lower horizons of the Kaniapiskau Supergroup in the Labrador trough of the Canadian Shield are remarkable,...

Fractionation of carbon and oxygen isotopes in 13C-rich Palaeoproterozoic dolostones in the transition from medium-gradegreenschist facies: a case study from the Kola Superdeep Drillhole

Melezhik, V.A., Fallick, A.E., Smirnov, Y.P., Yakovlev, Y.N.

Samples from the Kola Superdeep Drillhole (12 262 m), a deep drillhole (1060 m), and from the surface, seaprated by only around 10 km, provided a unique opportunity for direct tracing of delta(13)C...

δ13C and δ18O variations in primary and secondary carbonate phases: several contrasting examples from Palaeoproterozoic 13C-rich metamorphosed dolostones

Melezhik, V.A., Fallick, A.E.

The Palaeoproterozoic Kuetsjarvi Sedimentary Formation from the Pechenga Greenstone Belt, NW Russia, has been studied with the purpose of determining δ13Ccarb and δ18Ocarb values in various...

Timing and genesis of base- metal mineralisation in black shales of the Upper Permian Ravnefjeld Formation, Wegener Halvo, East Greenland

Pedersen, M., Nielsen, J.K., Boyce, A.J., Fallick, A.E.

Bituminous mud shales of the Upper Permian Ravnefjeld Formation (Zechstein I equivalent) are mineralised with zinc, lead and copper within a ca. 50 km 2 area on Wegener Halvo in central East...

Source and evolution of ore-forming hydrothermal fluids in the northern Iberian Pyrite Belt massive sulphide deposits (SW Spain): evidence from fluid inclusions and stable isotopes

Sánchez-España, J., Velasco, F., Boyce, A.J., Fallick, A.E.

A fluid inclusion and stable isotopic study has been undertaken on some massive sulphide deposits (Aguas Teñidas Este, Concepción, San Miguel, San Telmo and Cueva de la Mora) located in the...

Sulphur isotope composition of silurian shale-hosted PGE-Ag-Au- Zn-Cu mineralisations of the Prades Mountains (Catalonia, Spain)

Alfonso, P., Canet, C., Melgarejo, J.C., Fallick, A.E.

Several Silurian metamorphosed shale-hosted sulphide occurrences have been studied in the Prades Mountains, southern part of the Coastal Catalonian Ranges. Most of the sulphides are found as...

Timing of interplay between hydrothermal and surface fluids in the Navan Zn plus Pb orebody, Ireland: Evidence from metal distribution trends, mineral textures, and delta S-34 analyses

Blakeman, R.J., Ashton, J.H., Boyce, A.J., Fallick, A.E., Russell, M.J.

Models of genesis for the Navan orebody are of two distinct types. An early hypothesis that mesothermal (though nonmagmatic) deposition of ore began when a supernatant seawater brine still had access...

Determination of rhizosphere C-13 pulse signals in soil thin sections by laser ablation isotope ratio mass spectrometry

Bruneau, P.M.C., Ostle, N., Davidson, D.A., Grieve, I.C., Fallick, A.E.

In grassland ecosystems, soil animals act as key soil engineers and architects. The diversity of soil animals is also a regulator of ecosystem carbon flow. However, our understanding of the link...

Pore water evolution in oilfield sandstones: constraints from oxygen isotope microanalyses of quartz cement

Marchand, A.M.E., Macaulay, C.I., Haszeldine, R.S., Fallick, A.E.

Oxygen isotope microanalyses of authigenic quartz, in combination with temperatures of quartz precipitation constrained. by fluid inclusion microthermometry and burial history modelling, are employed...

Stable isotope study of the igneous, metamorphic and mineralized rocks of the Edough complex, Annaba, Northeast Algeria

Laouar, R., Boyce, A.J., Ahmed-Said, Y., Ouabadi, A., Fallick, A.E., Toubal, A.

The petrogenesis of igneous, metamorphic and mineralized rocks in the Edough massif, NE Algeria, indicates an interplay between crustal and magmatic sources, and magmatic and surface fluids, as...

Isotopic stratigraphy suggests Neoproterozoic ages and Laurentian ancestry for high-grade marbles from the North- Central Norwegian Caledonides

Melezhik, V.A., Gorokhov, I.M., Fallick, A.E., Roberts, D., Kuznetsov, A.B., Zwaan, K.B., ...

Carbon and strontium isotope stratigraphy has been applied to constrain the depositional ages of high-grade marble sequences in the Ofoten district of the North-Central Norwegian Caledonides. Two...

Note on the importance of hydrocarbon fill for reservoir quality prediction in sandstones

Marchand, A.M.E., Smalley, P.C., Haszeldine, R.S., Fallick, A.E.

Oil emplacement retarded the rate of quartz cementation in the Brae Formation deep-water sandstone reservoirs of the Miller and Kingfisher fields (United Kingdom North Sea), thus preserving porosity...

Use of stable oxygen isotope determinations from brachiopod shells in palaeoenvironmental reconstruction

Curry, G.B., Fallick, A.E.

Stable oxygen isotope analyses were obtained from fossil brachiopod shells from a shallow marine deposit of Upper Pleistocene age (approximately 80 ka) in New Zealand as part of a palaeoenvironmental...

Isotopic evidence for a complex Neoproterozoic to Silurian rock assemblage in the North-Central Norwegian Caledonides

Melezhik, V.A., Roberts, D., Gorokhov, I.M., Fallick, A.E., Zwaan, K.B., Kuznetsov, A.B., ...

Depositional ages of high-grade marble sequences in the Ofoten district of the North-Central Norwegian Caledonides have been constrained by the application of carbon and strontium isotope...

Picritic magmas and the Rum ultramafic complex, Scotland

Upton, B.G.J., Skovgaard, A.C., McClurg, J., Kirstein, L., Cheadle, M., Emeleus, C.H., ...

Three small picritic dykes, intruded at a late stage in the evolution of the Rum basic-ultra-basic complex, Inner Hebrides, shed new light on the nature of the magmas responsible for the main...

Laser combustion analysis of delta S-34 of sulfosalt minerals: Determination of the fractionation systematics and some crystal-chemical considerations

Wagner, T., Boyce, A.J., Fallick, A.E.

Laser sulfur combustion in the presence of 0, is the most commonly used method of in situ sulfur isotope analysis. Previous workers indicated that a small but reproducible fractionation of (34S)/S-32...

Interpretive problems in a search for micro-invertebrate fossils from a neoproterozoic limestone in Namibia

Brain, C.K., Coetzee, J., Botha, A.J., Hoffmann, K.H., Prave, A.R., Fallick, A.E.

Attention is focussed on a carbonate sequence in the Auros Formation of the Otavi Group in northern Namibia, where several limestone layers are found to have been phosphatised. These contain an...

Bacteria were responsible for the magnitude of the world-class hydrothermal base metal sulfide orebody at Navan Ireland

Fallick, A.E., Ashton, J.H., Boyce, A.J., Ellam, B.M., Russell, M.J.

We report sulfur and lead isotope analyses of mine concentrates from Navan, the largest zinc deposit in Ireland. These samples, each representing up to a million tonnes of ore, show very limited...

87Sr/86Sr: A new discriminant for provenancing neolithic porcellanite artifacts from Ireland

Curran, J.M., Meighan, I.G., Simpson, D.D.A., Rogers, G., Fallick, A.E.

Antrim porcellanite (thermally metamorphosed Tertiary laterite) was the most common raw material used in the production of stone implements during the Neolithic in Ireland and was worked at two...

Carbonate diagenesis in a high transmissivity coastal aquifer, Biscayne Aquifer, southeastern Florida, USA

Maliva, R.G., Missimer, T.M., Walker, C.W., Owosina, E.S., Dickson, J.A.D., Fallick, A.E.

Cores collected through the Biscayne Aquifer (Plio-Pleistocene) in Hollywood, southeastern Florida, as part of the Hollywood Coastal Salinity Barrier Project provided an opportunity to examine the...

Evidence for reduced quartz-cementation rates in oil-filled sandstones

Marchand, A.M.E., Haszeldine, R.S., Smalley, P.C., Macaulay, C.I., Fallick, A.E.

When quartz-rich sands are buried and heated, pore space is gradually filled by precipitation of quartz cement from aqueous formation fluids. Here we examine whether the presence of oil in the pore...

Palaeoproterozoic travertines of volcanic affiliation from a C- 13-rich rift lake environment

Melezhik, V.A., Fallick, A.E.

The ca. 2.2 Ga Kuetsjarvi Sedimentary Formation (KSF) of the Pechenga Greenstone Belt, the north-east Fennoscandian Shield, contains the oldest travertines so far reported in the literature. The...

Palaeoproterozoic magnesite: lithological and isotopic evidence for playa/sabkha environments

Melezhik, V.A., Fallick, A.E., Medvedev, P.V., Makarikhin, V.V.

Magnesite forms a series of 1- to 15-m-thick beds within the approximate to2.0 Ga (Palaeoproterozoic) Tulomozerskaya Formation, NW Fennoscandian Shield, Russia. Drillcore material together with...

Strontium and carbon isotope geochemistry applied to dating of carbonate sedimentation: an example from high-grade rocks of the Norwegian Caledonides

Melezhik, V.A., Gorokhov, I.M., Fallick, A.E., Gjelle, S.

'Isotope stratigraphy' has been applied to an undated, high- grade carbonate sequence from the Norwegian Caledonides in order to constrain the depositional age. Sokumfjell Group marbles of the Beiarn...

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating'

Melezhik, V.A., Gorokhov, I.M., Kuznetsov, A.B., Fallick, A.E.

The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its...

Degassing at the Soufriere Hills Volcano, Montserrat, recorded in matrix glass compositions

Harford, C.L., Sparks, R.S.J., Fallick, A.E.

Compositions of matrix glasses from the current eruption of Soufriere Hills Volcano indicate that decompression-driven crystallization results in 20-70 wt % groundmass crystallization during eruption...

Subaerial exposure surfaces in a Palaeoproterozoic 13C-rich dolostone sequence from the Pechenga Greenstone Belt: palaeoenvironmental and isotopic implications for the 2330-2060 Ma global isotope excursion of 13C/12C

Melezhik, V.A., Fallick, A.E., Grillo, S.M.

This article reports the discovery of numerous subaerial exposure surfaces which occur in the ca. 2200 Ma Kuetsjdrvi Sedimentary Formation (KSF) from the Pechenga Greenstone Belt, NE Fennoscandian...

A Study of Carbon and Nitrogen Stable Isotope and Elemental Ratios as Potential Indicators of Source and Fate of Organic Matter in Sediments of the Forth Estuary, Scotland

Graham, M.C., Eaves, M.A., Farmer, J.G., Dobson, J., Fallick, A.E.

The purpose of this study was to investigate the importance of both natural and anthropogenic sources of organic matter in bottom sediments of the Forth Estuary, east Scotland, U.K. Organic matter...

Relationships between hornblende K-Ar ages, chemical composition and hydrogen isotopes, Connemara, western Ireland: evidence for a massive extinct hydrothermal system

Jappy, T.G., Leake, B.E., Fallick, A.E.

Major element compositional analyses, K-Ar ages, deltaD parts per thousand and delta O-18 parts per thousand values for 30 zoned and unzoned hornblendes from Dalradian amphibolites and metagabbros....

Estimates of sulphate reduction rates in Lake Vanda, Antarctica support the proposed recent history of the lake

Purdy, K.J., Hawes, I., Bryant, C.L., Fallick, A.E., Nedwell, D.B.

Lake Vanda, a perennially ice-covered Antarctic lake has a highly stratified structure with a pronounced density gradient from 45 m and is anoxic from 68 rn down. In order to gain a greater...

Assessment of grid-based whole-rock delta D surveys in exploration: Boulder County epithermal tungsten deposit, Colorado

Rice, C.M., Harmon, R.S., Boyce, A.J., Fallick, A.E.

Important epithermal tungsten mineralization in the Boulder County district is mainly hosted by quartz-ferberite (FeWO4) veins. Isotopic studies based on an extensive grid (deltaD) and individual...

Denitrification and phenol degradation in a contaminated aquifer

Spence, M.J., Bottrell, S.H., Higgo, J.J.W., Harrison, I., Fallick, A.E.

A natural groundwater system modified by pollutant phenols and agricultural nitrate has been modelled in the laboratory by a series of sacrificial microcosm experiments. Samples of aquifer sediment...

Disseminated 'jigsaw piece' dolomite in Upper Jurassic shelf sandstones, Central North Sea: an example of cement growth during bioturbation

Hendry, J.P., Wilkinson, M., Fallick, A.E., Trewins, N.H.

Unusual textural and chemical characteristics of disseminated dolomite in Upper Jurassic shelf sediments of the North Sea have provided the basis for a proposed new interpretation of early diagenetic...

The nature and genesis of gold-silver-tellurium mineralization in the Metaliferi Mountains of western Romania

Alderton, D.H.M., Fallick, A.E.

Precious metal (Au, Ag) and base metal (Pb, Zn) deposits in the Metaliferi Mountains of western Romania occur in steeply clipping quartz-Ca/Mn carbonate veins, which are hosted by Miocene andesitic...

Sourcing of fossil fuel-derived PAH in the environment

McRae, C., Sun, C.G., McMillan, C., Snape, C.E., Fallick, A.E.

To investigate the effects of domestic coal burning on the distribution and isotopic composition of environmental PAH, a series of soil samples were collected in a coal-burning village nearby...

Metamorphic reactions in the biotite zone, eastern Scotland: high thermal gradients, metasomatism and cleavage formation

Dempster, T.J., Fallick, A.E., Whittemore, C.J.

Prograde metamorphic reactions involving the growth of phyllosilicates and accompanying cleavage development have been investigated in Dalradian metasediments from the biotite zone of eastern...

Retrogression by deep infiltration of meteoric fluids into thrust zones during late-orogenic rapid unroofing

Barker, A.J., Bennett, D.G., Boyce, A.J., Fallick, A.E.

Hypersaline (Na-Ca-Cl) fluids are associated with late-stage quartz veining and retrogression of garnet, kyanite and other high P-T phases in the vicinity of thrusts and major lithological boundaries...

From basin to basement: the movement of surface fluids into the crust

Gleeson, S.A., Yardley, B.W.D., Boyce, A.J., Fallick, A.E., Munz, L.A.

Quartz veins from Precambrian, high grade, basement rocks in Southern Norway contain both aqueous and biogenically sourced hydrocarbon fluid inclusions. Aqueous fluids show a wide range in salinities...

Sandstone cementation and fluids in hydrocarbon basins

Haszeldine, R.S., Macaulay, C.I., Marchand, A., Wilkinson, M., Graham, C.M., Cavanagh, A., ...

Are porewater flow or stasis exclusive hypotheses? We think there is an intermediate view. Processes governing sandstone cementation in the deep sub-surface are elusive, case-specific and difficult...

Ankerite cementation in deeply buried Jurassic sandstone reservoirs of the central North Sea

Hendry, J.P., Wilkinson, M., Fallick, A.E., Haszeldine, R.S.

Upper Jurassic Fulmar Formation shelf sandstones of the high- temperature, high-pressure Franklin and Elgin Fields (South Central Graben, North Sea) contain abundant disseminated and concretionary...

Oil migration makes the difference: regional distribution of carbonate cement delta C-13 in northern North Sea Tertiary sandstones

Macaulay, C.I., Fallick, A.E., Haszeldine, R.S., McAulay, G.E.

Carbonate cements in Tertiary reservoir sandstones from the northern North Sea have distinctive carbon isotopic compositions (delta(13)C). Oil migration up faults from deeper structures and...

Methods of laser-based stable isotope measurement applied to diagenetic cements and hydrocarbon reservoir quality

Macaulay, C.I., Fallick, A.E., Haszeldine, R.S., Graham, C.M.

The stable isotopic compositions of diagenetic minerals can provide valuable constraints on the sources, precipitation temperatures and relative timing of cements in reservoir rocks. This type of...

Quartz cementation inhibited by crestal oil charge: Miller deep water sandstone, UK North Sea

Marchand, A.M.E., Haszeldine, R.S., Macaulay, C.I., Swennen, R., Fallick, A.E.

In the Miller Field, diagenetic quartz abundance, isotopic compositions and salinities of quartz-cementing fluids display a distinct pattern which is related to the structural depth of the reservoir...

Sulphur isotope variations in diagenetic pyrite from core plug to sub-millimetre scales

McConville, P., Boyce, A.J., Fallick, A.E., Harte, B., Scott, E.M.

Sulphur isotope ratio measurements (delta(34)S) of diagenetic pyrite an commonly used to identify S sources and mechanisms of sulphide formation in basinal sediments. This study reports: such data...

Use of compound-specific stable isotope analysis to source anthropogenic natural gas-derived polycyclic aromatic hydrocarbons in a lagoon sediment

McRae, C., Snape, C.E., Sun, C.G., Fabbri, D., Tartari, D., Trombini, C., ...

This paper reports the first identification of polycyclic aromatic hydrocarbons (PAHs) in the environment with extremely low carbon stable isotopic ratios. For sediments collected from a coastal...

2000-Ma sulphide concretions from the 'Productive' Formation of the Pechenga Greenstone Belt, NW Russia: genetic history based on morphological and isotopic evidence

Melezhik, V.A., Grinenko, L.N., Fallick, A.E.

Two hundred and fifty-nine sulphide samples from black shales of the 'Productive' Formation belonging to the Palaeoproterozoic (2000 Ma) Petsamo Supergroup in the Kola region (NW Russia) have been...

Palaeoproterozoic magnesite-stromatolite-dolostone-'red bed' association, Russian Karelia: palaeoenvironmental constraints on the 2.0 Ga-positive carbon isotope shift

Melezhik, V.A., Fallick, A.E., Medvedev, P.V., Makarikhin, V.V.

The ca. 2000 Ma. Tulomozerskaya Formation, Russian Karelia, is composed of an 800 m-thick magnesite-stromatolite-dolostone- 'red bed' succession with the most C-13-rich dolostones (up to +18 parts...

Depositional environment and apparent age of the Fauske carbonate conglomerate, North Norwegian Caledonides

Melezhik, V.A., Heldal, T., Roberts, D., Gorokhov, I.M., Fallick, A.E.

The Fauske conglomerate represents a rather rare case of a monomict carbonate conglomerate in the Late Neoproterozoic to Silurian, lithostratigraphic successionsof the Norwegian Caledonides....

Regional fluid flow and gold mineralization in the Dalradian of the Sperrin Mountains, northern Ireland

Parnell, J., Earls, G., Wilkinson, J.J., Hutton, D.H.W., Boyce, A.J., Fallick, A.E., ...

Gold vein mineralization occurs in the metamorphosed and deformed Dalradian (Neoproterozoic) rocks of the Sperrin Mountains, Northern Ireland. Two structures exerted a control on the location of the...

Evolution and paragenetic context of low delta D hydrothermal fluids from the Panasqueira W-Sn deposit, Portugal: New evidence from microthermometric, stable isotope, noble gas and halogen analyses of primary fluid inclusions

Polya, D.A., Foxford, K.A., Stuart, F., Boyce, A., Fallick, A.E.

The evolution, paragenetic context and origin of remarkably low delta D hydrothermal fluids from the Hercynian Panasqueira W- Sn-Cu(Ag) deposit have been investigated through a combined...

δ13C values of lipids from phototrophic zone microplankton and bathypelagic shrimps at the Azores sector of the Mid-Atlantic Ridge

Pond, D.W., Sargent, J.R., Fallick, A.E., Allen, C., Bell, M.V., Dixon, D.R.

The lipid composition and δ13C values of phototrophic zone microplankton, and species of bathypelagic shrimp that are not associated with hydrothermal vents, were determined for samples...

The correlation of reaction and isotope fronts and the mechanism of metamorphic fluid flow

Skelton, A.D.L., Valley, J.W., Graham, C.M., Bickle, M.J., Fallick, A.E.

Infiltration of a metabasite sill From Islay, Scotland by an H2O-CO2 fluid caused (1) modification of. delta(18)O and (2) carbonation at the sill margins, Maps of delta(18)O and reaction progress...

Regional distribution of diagenetic carbonate cement in Palaeocene deepwater sandstones: North Sea

Stewart, R.N.T., Haszeldine, R.S., Fallick, A.E., Wilkinson, M., Macaulay, C.I.

Sandstones of the Palaeocene Montrose Group were deposited in a deepwater fan environment, and form a major oil reservoir in the North Sea. Calcite concretions occur commonly within thick- bedded and...

Siderite zonation within the Brent Group: microbial influence or aquifer flow?

Wilkinson, M., Haszeldine, R.S., Fallick, A.E., Osborne, M.J.

A three-fold zonation can he imaged within authigenic siderite from sandstones of the Brent Group using back-scatter SEM techniques. We interpret this zonation in terms of the biogeochemical zonation...

Stable isotopes of pedogenic carbonates from the Somma-Vesuvius area, southern Italy, over the past 18 kyr: palaeoclimatic implications

Zanchetta, G., Di Vito, M., Fallick, A.E., Sulpizio, R.

Stable isotopes were measured in the carbonate and organic matter of palaeosols in the Somma-Vesuvius area, southern Italy in order to test whether they are suitable proxy records for climatic and...

Genesis of vein stockwork and sedimentary magnesite and hydromagnesite deposits in the ultramafic terranes of southwestern Turkey: A stable isotope study

Zedef, V., Russell, M.J., Fallick, A.E., Hall, A.J.

Vein stockworks and lacustrine developments of cryptocrystalline magnesium carbonates of Neogene and Quaternary age occur within the partially serpentinized, discontinuous ultramafic belts of...

Palaeoclimatic implications of the growth history and stable isotope (delta O-18 and delta C-13) geochemistry of a Middle to Late Pleistocene stalagmite from central-western Italy

Drysdale, R.N., Zanchetta, G., Hellstrom, J.C., Fallick, A.E., Zhao, J.X., Isola, I., ...

The age structure and, stable isotope composition of a stalagmite (CC I) from an upland cave in central-western Italy were studied to investigate regional response to global climatic changes. Four...

Laser microprobe sulphur isotope analysis of arsenopyrite: experimental calibration and application to the Boliden Au-Cu- As massive sulphide deposit

Wagner, T., Boyce, A.J., Jonsson, E., Fallick, A.E.

Metamorphic remobilization of arsenopyrite-rich ores is a globally important process which can lead to significant concentrations of gold. In order to understand this and related processes, relations...

Basalt petrology, zircon ages and sapphire genesis from Dak Nong, southern Vietnam

Garnier, V., Ohnenstetter, D., Giuliani, G., Fallick, A.E., Trong, T.P., Quang, V.H., ...

Basalts associated with sapphire deposits are widespread in Europe, Africa, Asia and Australia. In Vietnam, blue, green and yellow sapphires are recovered from eluvial and alluvial placers hosted in...

Oxygen isotope composition as a tracer for the origins of rubies and sapphires

Giuliani, G., Fallick, A.E., Garnier, V., France-Lanord, C., Ohnenstetter, D., Schwarz, D.

Oxygen isotopic compositions of rubies and sapphires from 106 deposits worldwide, as well as heated natural corundum, have been measured in this study. Artificially heated corundums have the same...

Boron and calcium isotope composition in Neoproterozoic carbonate rocks from Namibia: evidence for extreme environmental change

Kasemann, S.A., Hawkesworth, C.J., Prave, A.R., Fallick, A.E., Pearson, P.N.

The level and evolution of atmospheric carbon dioxide throughout Earth's history are key issues for palaeoclimate reconstructions, especially during times of extreme climate change such as those that...

Geochemical preservation potential of high-grade calcite marble versus dolomite marble: implication for isotope chemostratigraphy

Melezhik, V.A., Roberts, D., Fallick, A.E., Gorokhov, I.M., Kusnetzov, A.B.

The Neoproterozoic Hekkelstrand Marble from the North-Central Norwegian Catedonides contains a calcite marble unit hosting a commercially exploited white dolomite marble deposit, which underwent...

Palaeoproterozoic evaporites in Fennoscandia: implications for seawater sulphate, the rise of atmospheric oxygen and local amplification of the delta C-13 excursion

Melezhik, V.A., Fallick, A.E., Rychanchik, D.V., Kuznetsov, A.B.

This paper addresses global oxygenation and establishment of a marine sulphate reservoir in the Palaeoproterozoic. We report syn-depositional, marine, anhydrite-containing pseudomorphs after...

Barite-pyrite mineralization of the Wiesbaden thermal spring system, Germany: a 500-kyr record of geochemical evolution

Wagner, T., Kirnbauer, T., Boyce, A.J., Fallick, A.E.

Barite-(pyrite) mineralizations from the thermal springs of Wiesbaden, Rhenish Massif, Germany, have been studied to place constraints on the geochemical evolution of the hydrothermal system in space...

Vertebrate nutrition in a deep-sea hydrothermal vent ecosystem: fatty acid and stable isotope evidence

Pond, D.W., Fallick, A.E., Stevens, C.J., Morrison, D.J., Dixon, D.R.

The hydrothermal vent zoarcid fish Thermarces cerberus is a top predator that inhabits deep-sea hydrothermal vents on the East Pacific Rise (EPR). Bacterial chemoautotrophy at these sites supports...