Mark, D. F., Kelley, S. P., Lee, M. R., Parnell, J., Sherlock, S. C., Brown, D. J.
We have analysed two distinct generations of authigenic K-feldspar in Fucoid Bed sandstones from An-t-Sron and Skiag Bridge, NW Highlands, Scotland, which have experienced post-growth heating to...
Compositional controls on Ar-40/Ar-39 ages of zoned mica from a rare-element pegmatite (2005)
Smith, S.R, Kelley, S.P, Tindle, A.G, Breaks, F.W
A high spatial resolution Ar-Ar dating study of compositionally zoned micas using UV laser extraction has been used to investigate the effect of composition and compositional boundaries upon argon...
Evolution of Proterozoic mafic dyke swarms of the Bundelkhand Granite Massif, Central India (2005)
Mallikharjuna Rao, J., Widdowson, M., Kelley, S.P.
The early Proterozoic Bundelkhand Granite Massif of Central India is extensively intruded by NW–SE and NE–SW trending mafic and ultramafic dykes. These dykes are mostly dolerites with subordinate...
Timing of tectonic events in the Alpujarride Complex, Betic Cordillera, southern Spain (2005)
Platt, J.P, Kelley, S.P, Carter, A., Orozco, M.
Ar-Ar and fission-track dating from four low-grade sections in the Alpujarride Complex sheds light on the timing of the early contractional history of these high-pressure metamorphic units, and their...
Haines, P.W, Turner, S.P, Kelley, S.P, Wartho, J.A, Sherlock, S.C
Detrital zircon ages are commonly used to investigate sediment provenance and supply routes. Here, we explore the advantages of employing multiple, complimentary techniques via a case study of the...
Smith, S.R., Foster, G.L., Romer, R.L., Tindle, A.G., Kelley, S.P., Noble, S.R., ...
U-Pb isotopic analyses using TIMS and Laser Ablation-Multi Collector-ICP-MS were carried out on columbite-tantalite minerals from three suites of rare-element (Li, Cs, Ta) pegmatites in the Superior...
Williams, H.M., Turner, S.P., Pearce, J.A., Kelley, S.P., Harris, N.B.W.
Neogene potassic lavas in northern and southern Tibet have different isotopic (epsilonNd((i)) north, -5.5 to -10.3; south -8.8 to -18.1) and major element signatures suggesting derivation from...
Platt, J.P, Argles, T.W, Carter, A., Kelley, S.P, Whitehouse, M.J, Lonergan, L.
The Ronda pendotite in the Bette Cordillera Of Southern Spain is a relic of the sub-orogenic lithospheric mantle that was exhumed during earliest Miocene time from about 66 km depth. Overlying...
WILLIAMS, H. M., TURNER, S. P., PEARCE, J. A., KELLEY, S. P., HARRIS, N. B. W.
Neogene potassic lavas in northern and southern Tibet have different isotopic (ϵNd(i) north, −5·5 to −10·3; south −8·8 to −18·1) and major element signatures suggesting derivation...
Anand, M., Gibson, S.A, Subbarao, K.V, Kelley, S.P, Dickin, A.P
Early Proterozoic tholeiitic lavas and sills were emplaced during the initial phase of extension of the intra-cratonic Cuddapah Basin, southern India. Ar-40-Ar-39 laser-fusion determinations on...
The 'zero charge' partitioning behaviour of noble gases during mantle melting (2003)
Brooker, R.A., Du, Z., Blundy, J.D., Kelley, S.P., Allan, N.L., Wood, B.J., ...
Noble-gas geochemistry is an important tool for understanding planetary processes from accretion to mantle dynamics and atmospheric formation(1-4). Central to much of the modelling of such processes...
Kinematic reworking and exhumation within the convergent Alpine Orogen (2003)
Reddy, S.M, Wheeler, J., Butler, R.W.H, Cliff, R.A, Freeman, S., Inger, S., ...
Kinematic data from the internal zones of the Western Alps indicate both top-to-SE and top-to-NW shearing during synkinematic greenschist facies recrystallisation. Rb/Sr data from white micas from...
Platt, J.P., Whitehouse, M.J, Kelley, S.P, Carter, A., Hollick, L.
Large-scale crustal thinning of the Alpine orogen in the westernmost Mediterranean (Alboran Sea and surrounding regions) was rapid, simultaneous over an area of 60,000 km(2), and took place similar...
Kinematic reworking and exhumation within the convergent Alpine orogen (2003)
Reddy, Steven, Wheeler, J., Butler, R.W.H., Cliff, R.A., Freeman, S., Inger, S., ...
Kinematic data from the internal zones of the Western Alps indicate both top-to-SE and top-to-NW shearing during syn-kinematic greenschist facies recrystallisation. Rb/Sr data from white micas from...
Kinematic reworking and exhumation within the convergent Alpine orogen (2003)
Reddy, Steven, Wheeler, J., Butler, R.W.H., Cliff, R.A., Freeman, S., Inger, S., ...
Kinematic data from the internal zones of the Western Alps indicate both top-to-SE and top-to-NW shearing during syn-kinematic greenschist facies recrystallisation. Rb/Sr data from white micas from...
Sherlock, S.C., Kelley, S.P., Zalasiewicz, J.A., Schofield, D.I., Evans, Jane A., Merriman, R.J., ...
Kinematic reworking and exhumation within the convergent Alpine orogen (2003)
Reddy, Steven, Wheeler, J., Butler, R.W.H., Cliff, R.A., Freeman, S., Inger, S., ...
Kinematic data from the internal zones of the Western Alps indicate both top-to-SE and top-to-NW shearing during syn-kinematic greenschist facies recrystallisation. Rb/Sr data from white micas from...
ANAND, M., GIBSON, S. A., SUBBARAO, K. V., KELLEY, S. P., DICKIN, A. P.
Early Proterozoic tholeiitic lavas and sills were emplaced during the initial phase of extension of the intra-cratonic Cuddapah Basin, southern India. 40Ar–39Ar laser-fusion determinations on...
Ar and K partitioning between clinopyroxene and silicate melt to 8 GPa (2002)
Chamorro, E.M., Brooker, R.A., Wood, B.J., Kelley, S.P., Blundy, J.D.
The relative incompatibility of Ar and K are fundamental parameters in understanding the degassing history of the mantle. Clinopyroxene is the main host for K in most of the upper mantle, playing an...
Boven, A., Pasteels, P., Kelley, S.P., Punzalan, L., Bingen, B., Damaiffe, D.
The combined use of stepwise-heating and UV-laser ablation Ar-40/Ar-39 techniques with microprobe analyses on plutonic plagioclase allows the investigation of complex argon release and retention. The...
Obtaining geologically meaningful Ar-40-Ar-39 ages from altered biotite (2001)
Roberts, H.J., Kelley, S.P., Dahl, P.S.
Biotite is the most used Ar-40-Ar-39 geochronometer yet two significant problems arise from Ar-Ar step-heating. Dating altered biotite can be problematic, producing disturbed age spectra that reflect...
Direct dating of authigenic K-feldspar overgrowths from the Kilombero Rift of Tanzania (2001)
Hagen, E., Kelley, S.P., Dypvik, H., Nilsen, O, Kjolhamar, B.
K-feldspars form important detrital and authigenic components in sediments but may be difficult to separate by conventional means for isotope analysis, particularly geochronology. UV lasers are being...
PANKHURST, R. J., RILEY, T. R., FANNING, C. M., KELLEY, S. P.
New SHRIMP U–Pb zircon, Rb–Sr whole-rock, and 40Ar–39Ar data are presented for the Jurassic silicic volcanic rocks and related granitoids of Patagonia and the Antarctic Peninsula. U–Pb is the...
Reddy, Steven, Potts, G.J., Kelley, S.P., Arnaud, N.O.
A combination of forescatter scanning electron microscopy and both ultra-violet (UV) laser and cycle stepped-heating 40Ar/39Ar dating techniques have been applied to a single deformed grain of...
Reddy, Steven, Potts, G.J., Kelley, S.P., Arnaud, N.O.
A combination of forescatter scanning electron microscopy and both ultra-violet (UV) laser and cycle stepped-heating 40Ar/39Ar dating techniques have been applied to a single deformed grain of...
Reddy, Steven, Potts, G.J., Kelley, S.P., Arnaud, N.O.
A combination of forescatter scanning electron microscopy and both ultra-violet (UV) laser and cycle stepped-heating 40Ar/39Ar dating techniques have been applied to a single deformed grain of...
Magmatism Associated with Orogenic Collapse of the Betic-Alboran Domain, SE Spain (1999)
Turner, S. P., Platt, J. P., George, R. M. M., Kelley, S. P., Pearson, D. G., Nowell, G. M.
Extensional collapse of the Betic–Alboran Domain in the Miocene was accompanied by several discrete episodes of magmatism which provide insights into the relationships between the thermal and...
The Generation of Potassic Lavas from the Eastern Virunga Province, Rwanda (1998)
Rogers, N. W., James, D., Kelley, S. P., De Mulder, M.
Lavas from the eastern Virunga province, Rwanda, are dominated by K-hawaiites, K-basanites and latites. All lavas are shoshonitic with 1 < K2O/Na2O < 2 and strongly enriched in incompatible...
Turner, S., Kelley, S. P., VandenBurg, A. J. M., Foden, John David, Sandiford, M., Flottmann, T.
© 1996 Geological Society of America
Turner, S., Kelley, S. P., VandenBurg, A. J. M., Foden, John David, Sandiford, M., Flottmann, T.
© 1996 Geological Society of America
Timing of hot spot-related volcanism and the breakup of Madagascar and India (1995)
Storey, M., Mahoney, J.J., Saunders, A.D., Duncan, R.A., Kelley, S.P., Coffin, M.F
Widespread basalts and rhyolites were erupted in Madagascar during the Late Cretaceous. These are considered to be related to the Marion hot spot and the breakup of Madagascar and Greater India....
Orthopaedic surgeons in Yorkshire--are we ATLS positive?
Kelley, S. P., McMurray, D. H. M., Hinsche, A. F., Deacon, P.
INTRODUCTION: In 1993, the Major Trauma Working Group of Yorkshire proposed that hospitals should be accredited as Trauma Reception Hospitals with a policy for the response to the arrival of a trauma...
Blood ordering protocol based on proposed surgical implant in fractured neck of femur patients.
Morritt, D. G., Morritt, A. N., Kelley, S. P., Stone, M. H.
INTRODUCTION: Fractured neck of femur patients frequently require blood transfusion. To improve the efficiency of blood ordering, we present a protocol which orders blood specific for the proposed...