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...
Siegert, M.J., Behar, A., Bentley, M., Blake, D., Christoffersen, P., Cockell, C., ...
Antarctic subglacial lakes have, over the past few years, been hypothesised to house unique forms of life and hold detailed sedimentary records of past climate change. Testing this hypothesis...
Raman spectroscopy of irradiated organic matter (2007)
Court, Richard, Sephton, Mark, Parnell, J., Gilmour, Iain
Raman spectroscopy of a range of irradiated and nonirradiated natural terrestrial bitumens has revealed that radiolytic alteration is generally associated with an increase in structural...
Simple devices for concentration of microbial life: Experiments in Haughton impact structure (2006)
Parnell, J., Lindgren, P., Osinski, G. R., Cockell, C. S., Lee, P.
Simple devices that create environments with high levels of light and moisture could attract extant microbial life on a planetary surface and hence enhance the detection of it. Experience in the...
Surface mineral crusts: A priority target in search for life on Mars (2006)
Parnell, J., Bowden, S. A., Cockell, C. S., Osinski, G. R., Lee, P.
Mineral crusts are strong candidates in the search for evidence of life during planetary exploration, and should be an important target for examination in impact craters. Crusts in the Haughton...
Osinski, G. R., Lee, P., Spray, J. G., Parnell, J., Lim, D. S. S., Bunch, T. E., ...
The Haughton impact structure has been the focus of systematic, multi-disciplinary field and laboratory research activities over the past several years. Regional geological mapping has refined the...
Endolithic colonization of fluid inclusion trails in mineral grains (2005)
Parnell, J., Baron, M., Cockell, C. S.
Many scenarios for the colonization of planetary surfaces by microbial life involve endoliths. This study records microbial mass along fluid inclusion trails (healed microfractures) in quartz grains.
Parnell, J., Osinski, G. R., Lee, P., Cockell, C. S.
Microbes occur within transparent gypsum crystals in the Haughton crater. The crystals transmit light for photosynthesis, but protect from dehydration and wind. Sulfates on the Martian surface should...
Court, R. W., Sephton, M. A., Parnell, J., Gilmour, I.
Exposure to ionizing radiation causes the mean combustion temperature of naturally occurring, solid, terrestrial organic matter, derived from the radiation-induced polymerization of methane, to...
Court, R. W., Sephton, M. A., Parnell, J., Gilmour, I.
Exposure to ionizing radiation causes the mean combustion temperature of naturally occurring, solid, terrestrial organic matter, derived from the radiation-induced polymerization of methane, to...
Parnell, J., Osinski, G. R., Lee, P., Cockell, C. S., Taylor, C. W.
Hopanoid biomarkers have been traced from bedrock to ice in the Haughton Impact Structure, suggesting that they represent a promising strategy in the search for life in ice deposits on Mars and other...
Parnell, J., Watt, G., Chen, H., Wycherley, H., Boyce, A., Elmore, D., ...
Sedimentary basins developed along the European margin during the earliest, Permian, stage of proto-Atlantic rifting, during a phase of high heat flow. The proximity of some basins to Caledonian...
Dattamajumdar, A. K., Wells, D., Parnell, J., Lewis, J. T., Ganguly, D.
Cervical cancer is an important cause of death in women worldwide. Women are currently screened for cervical cancer using Pap smear-an imperfect technology with poor sensitivity and specificity....
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...
Indicators of hot fluid migration in sedimentary basins: evidence from the UK Atlantic Margin (2003)
Wycherley, H.L., Parnell, J., Watt, G.R., Chen, H., Boyce, A.J.
Microthermometric, petrographic and isotopic methods have been used to detect evidence for hot fluid flow in Mesozoic and Tertiary sediments from the NW UK continental margin, West of Shetland. New...
Astrobiological instrumentation for Mars – the only way is down (2002)
Ellery, A., Kolb, C., Lammer, H., Parnell, J., Edwards, H., Richter, L., ...
In this paper, in this edition of the Journal commemorating the life and work of David Wynn-Williams, we consider approaches to the astrobiological investigation of Mars. We provide a brief account...
Parnell, J., Baron, M., Boyce, A.
Kaolinite and dickite occur widely in central Scotland and Northern Ireland. Stable hydrogen and oxygen isotope compositions of both minerals are similar, suggesting that the formation of kaolinite...
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...
Boyce, A.J., Wilkinson, J., Earls, G., Boland, M.J., Carey, P., Fallick, A.E., ...
No abstract available.
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...
Indicators of hot fluid migration in sedimentary basins: evidence from the UK Atlantic Margin
Wycherley, H.L., Parnell, J., Watt, G.R., Chen, H., Boyce, A.J.
Microthermometric, petrographic and isotopic methods have been used to detect evidence for hot fluid flow in Mesozoic and Tertiary sediments from the NW UK continental margin, West of Shetland. New...
Parnell, J., Baron, M., Boyce, A.
Kaolinite and dickite occur widely in central Scotland and Northern Ireland. Stable hydrogen and oxygen isotope compositions of both minerals are similar, suggesting that the formation of kaolinite...
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...
Parnell, J., Watt, G., Chen, H., Wycherley, H., Boyce, A., Elmore, D., ...
Sedimentary basins developed along the European margin during the earliest, Permian, stage of proto-Atlantic rifting, during a phase of high heat flow. The proximity of some basins to Caledonian...
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...
Indicators of hot fluid migration in sedimentary basins: evidence from the UK Atlantic Margin
Wycherley, H.L., Parnell, J., Watt, G.R., Chen, H., Boyce, A.J.
Microthermometric, petrographic and isotopic methods have been used to detect evidence for hot fluid flow in Mesozoic and Tertiary sediments from the NW UK continental margin, West of Shetland. New...
Parnell, J., Baron, M., Boyce, A.
Kaolinite and dickite occur widely in central Scotland and Northern Ireland. Stable hydrogen and oxygen isotope compositions of both minerals are similar, suggesting that the formation of kaolinite...
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...
Parnell, J., Watt, G., Chen, H., Wycherley, H., Boyce, A., Elmore, D., ...
Sedimentary basins developed along the European margin during the earliest, Permian, stage of proto-Atlantic rifting, during a phase of high heat flow. The proximity of some basins to Caledonian...