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  • John Parnell
2014

Carbon dioxide drawdown by Devonian lavas

Parnell, J., Macleod, K. & Hole, M. J., Mar 2014, In : Earth and Environmental Science Transactions of the Royal Society of Edinburgh . 105, 1, p. 1-8 8 p.

Research output: Contribution to journalArticle

Open Access
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5 Downloads (Pure)
2013

Raman Spectroscopic Analysis of Geological and Biogeological Specimens of Relevance to the ExoMars Mission

Edwards, H. G. M., Hutchinson, I. B., Ingley, R., Parnell, J., Vitek, P. & Jehlicka, J., Jun 2013, In : Astrobiology. 13, 6, p. 543-549 7 p.

Research output: Contribution to journalArticle

Open Access
File
38 Citations (Scopus)
4 Downloads (Pure)
2014

Potential for analysis of carbonaceous matter on Mars using Raman spectroscopy

Hutchinson, I. B., Parnell, J., Edwards, H. G. M., Jehlicka, J., Marshall, C. P., Harris, L. V. & Ingley, R., 15 Nov 2014, In : Planetary and space science. 103, p. 184-190 7 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Preservation of Mesoproterozoic age deep burial fluid signatures, NW Scotland

Parnell, J., Blamey, N. J. F., Costanzo, A., Feely, M. & Boyce, A. J., Aug 2014, In : Marine and Petroleum Geology. 55, p. 275-281 7 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Weighing the deep continental biosphere

McMahon, S. & Parnell, J., Jan 2014, In : FEMS Microbiology Ecology. 87, 1, p. 113-120 8 p.

Research output: Contribution to journalArticle

90 Citations (Scopus)
2016

Evidence for Seismogenic Hydrogen Gas, a Potential Microbial Energy Source on Earth and Mars

McMahon, S., Parnell, J. & Blamey, N. J. F., 1 Sep 2016, In : Astrobiology. 16, 9, p. 690-702 13 p.

Research output: Contribution to journalArticle

Open Access
File
10 Citations (Scopus)
7 Downloads (Pure)

A micrometeorite record in Ordovician Durness Group limestones, Isle of Skye

Parnell, J., Salter, N. & West, P., Jun 2016, In : Earth and Environmental Science Transactions of the Royal Society of Edinburgh . 106, 2, p. 81-87 7 p.

Research output: Contribution to journalArticle

Open Access
File
12 Downloads (Pure)
2013

Long term geological record of a global deep subsurface microbial habitat in sand injection complexes

Parnell, J., Boyce, A. J., Hurst, A., Davidheiser-Kroll, B. & Ponicka, J., 17 May 2013, In : Scientific Reports. 3, 6 p., 1828.

Research output: Contribution to journalArticle

Open Access
File
12 Citations (Scopus)
8 Downloads (Pure)
2012

The effects of meteorite impacts on the availability of bioessential elements for endolithic organisms

Pontefract, A., Osinski, G. R., Lindgren, P., Parnell, J., Cockell, C. S. & Southam, G., 1 Oct 2012, In : Meteoritics and Planetary Science. 47, 10, p. 1681-1691 11 p.

Research output: Contribution to journalArticle

Open Access
5 Citations (Scopus)
2016

Paradigm shift in determining Neoproterozoic atmospheric oxygen

Blamey, N. J. F., Brand, U., Parnell, J., Spear, N., Lécuyer, C., Benison, K., Meng, F. & Ni, P., 31 Aug 2016, In : Geology. 44, 8, p. 651-654 4 p.

Research output: Contribution to journalArticle

Open Access
File
35 Citations (Scopus)
7 Downloads (Pure)
2011

Probe Technology for the Direct Measurement and Sampling of Ellsworth Subglacial Lake

Mowlem, M. C., Tsaloglou, M. N., Waugh, E. M., Floquet, C. F. A., Saw, K., Fowler, L., Brown, R., Pearce, D., Wyatt, J. B., Beaton, A. D., Brito, M. P., Hodgson, D. A., Griffiths, G., Bentley, M., Blake, D., Capper, L., Clarke, R., Cockell, C., Corr, H., Harris, W. & 17 others, Hill, C., Hindmarsh, R., King, E., Lamb, H., Maher, B., Makinson, K., Parnell, J., Priscu, J., Rivera, A., Ross, N., Siegert, M. J., Smith, A., Tait, A., Tranter, M., Wadham, J., Whalley, B. & Woodward, J., 1 Jan 2011, Antarctic Subglacial Aquatic Environments. Siegert, M. J., Kennicutt II, M. C. & Bindschadler, R. A. (eds.). American Geophysical Union, p. 159-186 28 p. (Geophysical Monograph Series; vol. 192).

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Citations (Scopus)
2017
Open Access
File
8 Citations (Scopus)
54 Downloads (Pure)
2018

Demonstrating deep biosphere activity in the geological record of lake sediments, on Earth and Mars

Parnell, J., McMahon, S. & Boyce, A., Oct 2018, In : International Journal of Astrobiology. 17, 4, p. 380-385 6 p.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
8 Downloads (Pure)
2016

Anomalous supply of bioessential molybdenum in mid-Proterozoic surface environments

Parnell, J. & Lindgren, P., Apr 2016, In : Precambrian Research. 275, p. 100-104 5 p.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
3 Downloads (Pure)

Low-temperature concentration of tellurium and gold in continental red bed successions

Parnell, J., Spinks, S. & Bellis, D., Jun 2016, In : Terra Nova. 28, 3, p. 221-227 7 p.

Research output: Contribution to journalArticle

Open Access
File
8 Citations (Scopus)
3 Downloads (Pure)
2015

Geochemical evidence for a Cretaceous oil sand (Bima oil sand) in the Chad Basin, Nigeria

Bata, T., Parnell, J., Samaila, N. K., Abubakar, M. B. & Maigari, A. S., Nov 2015, In : Journal of African Earth Sciences. 111, p. 148–155 8 p.

Research output: Contribution to journalArticle

Open Access
File
8 Citations (Scopus)
4 Downloads (Pure)
2016

Remobilization and mineralization of selenium-tellurium in metamorphosed red beds: Evidence from the Munster Basin, Ireland

Spinks, S. C., Parnell, J., Bellis, D. & Still, J., 1 Jan 2016, In : Ore Geology Reviews. 72, Part 1, p. 114-127 14 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)
2015

Avoiding misidentification of bands in planetary Raman spectra

Harris, L. V., McHugh, M., Hutchinson, I. B., Ingley, R., Malherbe, C., Parnell, J., Olcott Marshall, A. & Edwards, H. G. M., 1 Oct 2015, In : Journal of Raman Spectroscopy. 46, 10, p. 863-872 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)
2012
Open Access
File
18 Citations (Scopus)
5 Downloads (Pure)
2019

Surface mineral crusts: a potential strategy for sampling for evidence of life on Mars

Brolly, C., Parnell, J. & Bowden, S., Apr 2019, In : International Journal of Astrobiology. 18, 2, p. 91-101 11 p.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
8 Downloads (Pure)
2014

Enhanced organic carbon burial in large Proterozoic lakes: Implications for atmospheric oxygenation

Spinks, S. C., Parnell, J., Bowden, S. A., Taylor, R. A. D. & Maclean, M. E., Dec 2014, In : Precambrian Research. 255, Part 1, p. 202-215 14 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2017

Microbial sulphate reduction during Neoproterozoic glaciation, Port Askaig Formation, UK

Parnell, J. & Boyce, A. J., 2017, In : Journal of the Geological Society . 174, p. 850-854 5 p.

Research output: Contribution to journalArticle

Open Access
File
4 Citations (Scopus)
6 Downloads (Pure)
2012

Clean access, measurement, and sampling of Ellsworth Subglacial Lake: A method for exploring deep Antarctic subglacial lake environments

Siegert, M. J., Clarke, R. J., Mowlem, M., Ross, N., Hill, C. S., Tait, A., Hodgson, D., Parnell, J., Tranter, M., Pearce, D., Bentley, M. J., Cockell, C., Tsaloglou, M. N., Smith, A., Woodward, J., Brito, M. P. & Waugh, E., Mar 2012, In : Reviews of Geophysics. 50, 1, 40 p., RG1003.

Research output: Contribution to journalArticle

31 Citations (Scopus)
2016
Open Access
File
11 Citations (Scopus)
3 Downloads (Pure)
2014

Raman spectroscopy on Mars: Identification of geological and bio-geological signatures in Martian analogues using miniaturized Raman spectrometers

Hutchinson, I. B., Ingley, R., Edwards, H. G. M., Harris, L., McHugh, M., Malherbe, C. & Parnell, J., 13 Dec 2014, In : Philosophical transactions of the royal society a-Mathematical physical and engineering sciences. 372, 2030, p. 1-13 13 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)
2017
Open Access
File
7 Citations (Scopus)
39 Downloads (Pure)
2019

Neoproterozoic copper cycling, and the rise of metazoans

Parnell, J. & Boyce, A. J., 6 Mar 2019, In : Scientific Reports. 9, 1, 3638.

Research output: Contribution to journalArticle

Open Access
File
5 Downloads (Pure)
2018

The geochemistry of oil in Cornish granites

Baba, MU., Parnell, J. & Bowden, S., 19 Dec 2018, In : Petroleum Geoscience. 25, 3, p. 298-305 8 p.

Research output: Contribution to journalArticle

Open Access
File
1 Downloads (Pure)
2019

Naturally propped fractures caused by quartz cementation preserve oil reservoirs in basement rocks

Baba, M., Parnell, J. & Bowden, S. A., Aug 2019, In : Terra Nova. 31, 4, p. 343-347 5 p.

Research output: Contribution to journalArticle

Open Access
File
1 Downloads (Pure)
2017

A black shale protolith for gold-tellurium mineralization in the Dalradian Supergroup (Neoproterozoic) of Britain and Ireland

Parnell, J., Perez, M., Armstrong, J., Bullock, L., Feldmann, J. & Boyce, A. J., 2017, In : Applied Earth Science. 126, 4, p. 161-175 15 p.

Research output: Contribution to journalArticle

Open Access
File
6 Citations (Scopus)
11 Downloads (Pure)
2019

Selenium and tellurium concentrations of Carboniferous British coals

Bullock, L. A., Parnell, J., Feldmann, J., Armstrong, J. G., Henn, A. S., Mesko, M. F., Mello, P. A. & Flores, E. M. M., 31 May 2019, In : Geological Journal. 54, 3, p. 1401-1412 12 p.

Research output: Contribution to journalArticle

Open Access
File
5 Citations (Scopus)
7 Downloads (Pure)

A thermal maturity map based on vitrinite reflectance of British coals

Bullock, L., Parnell, J., Muirhead, D., Armstrong, J., Schito, A. & Corrado, S., 1 Nov 2019, In : Journal of the Geological Society . 176, 6, p. 1136-1142 7 p.

Research output: Contribution to journalArticle

Open Access
File
6 Downloads (Pure)
2017

Raman spectroscopy of shocked gypsum from a meteorite impact crater

Brolly, C., Parnell, J. & Bowden, S., Jul 2017, In : International Journal of Astrobiology. 16, 3, p. 286-292 7 p.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
10 Downloads (Pure)
2019

Mine-derived ochre precipitates: a potential selenium trap

Bullock, L. A., Parnell, J., Armstrong, J. G. T. & Perez, M., 2019, In : Applied Earth Science: Transactions of the Institute of Mining and Metallurgy. 128, 2, p. 41-42 2 p.

Research output: Contribution to journalArticle

Variscan cycling of gold into a global coal reservoir

Parnell, J., Nov 2019, In : Ore Geology Reviews. 114, 103158.

Research output: Contribution to journalReview article

Open Access
File
2 Downloads (Pure)
2017

Global hydrogen reservoirs in basement and basins

Parnell, J. & Blamey, N., 20 Mar 2017, In : Geochemical Transactions. 18, 2.

Research output: Contribution to journalArticle

Open Access
File
4 Citations (Scopus)
8 Downloads (Pure)

Tellurium enrichment in Jurassic coal, Brora, Scotland

Bullock, L., Parnell, J., Perez, M. & Feldmann, J., 23 Nov 2017, In : Minerals. 7, 12, p. 1-13 13 p., 231.

Research output: Contribution to journalArticle

Open Access
File
6 Citations (Scopus)
107 Downloads (Pure)
2019

Comparative pore surface area in primary and secondary porosity in sandstones

Nolansnyder, D. R. & Parnell, J., Jan 2019, In : Journal of Petroleum Science and Engineering. 172, p. 489-492 4 p.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
6 Downloads (Pure)
2015

Evidence for methane in martian meteorites

Blamey, N. J. F., Parnell, J., McMahon, S., Mark, D. F., Tomkinson, T., Martin, L., Shivak, J., Izawa, M. R. M., Banerjee, N. R. & Fleming, R. L., 16 Jun 2015, In : Nature Communications. 6, 7 p., 7399.

Research output: Contribution to journalArticle

Open Access
File
35 Citations (Scopus)
5 Downloads (Pure)
2013

Groundwater activity on Mars and implications for a deep biosphere

Michalski, J. R., Cuadros, J., Niles, P. B., Parnell, J., Rogers, A. D. & Wright, S. P., Feb 2013, In : Nature Geoscience. 6, 2, p. 133-138 6 p.

Research output: Contribution to journalArticle

109 Citations (Scopus)
2018
Open Access
File
1 Citation (Scopus)
9 Downloads (Pure)
2015

High molybdenum availability for evolution in a Mesoproterozoic lacustrine environment

Parnell, J., Spinks, S., Andrews, S., Thayalan, W. & Bowden, S., 19 May 2015, In : Nature Communications. 6, 6996.

Research output: Contribution to journalArticle

Open Access
File
15 Citations (Scopus)
6 Downloads (Pure)
2014

Simultaneous and rapid asphaltene and TAN determination for heavy petroleum using an H-cell

Alabi, O., Bowden, S. A. & Parnell, J., 7 Jun 2014, In : Analytical Methods. 6, p. 3651-3660 10 p.

Research output: Contribution to journalArticle

Open Access
File
6 Citations (Scopus)
5 Downloads (Pure)
2015

Enhanced microbial activity in carbon-rich pillow lavas, Ordovician, Great Britain and Ireland

Parnell, J., Boyce, A. J., Davidheiser-Kroll, B., Brolly, C., Bowden, S. & Lindgren, P., Sep 2015, In : Geology. 43, 9, p. 827-830 4 p.

Research output: Contribution to journalArticle

Open Access
File
7 Downloads (Pure)
2012

Evidence for life in the isotopic analysis of surface sulphates in the Haughton impact structure, and potential application on Mars

Parnell, J., Boyce, A. J., Osinski, G. R., Izawa, M. R. M., Banerjee, N., Flemming, R. & Lee, P., Apr 2012, In : International Journal of Astrobiology. 11, 2, p. 93-101 9 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2019

Coal mining-derived ochres in the UK: a potential selenium trap

Bullock, L. A., Parnell, J., Perez, M. & Armstrong, J. G. T., Jul 2019, Geology Today, 35, 4, p. 140-145 6 p.

Research output: Contribution to specialist publicationArticle

2011

An inventory of potentially habitable environments on Mars: Geological and biological perspectives

Dohm, J. M., Miyamoto, H., Ori, G. G., Fairén, A. G., Davila, A. F., Komatsu, G., Mahaney, W. C., Williams, J. P., Joye, S. B., Di Achille, G., Oehler, D. Z., Marzo, G. A., Schulze-Makuch, D., Acocella, V., Glamoclija, M., Pondrelli, M., Boston, P., Hart, K. M., Anderson, R. C., Baker, V. R. & 20 others, Fink, W., Kelleher, B. P., Furfaro, R., Gross, C., Hare, T. M., Frazer, A. R., Ip, F., Allen, C. C. R., Kim, K. J., Maruyama, S., McGuire, P. C., Netoff, D., Parnell, J., Wendt, L., Wheelock, S. J., Steele, A., Hancock, R. G. V., Havics, R. A., Costa, P. & Krinsley, D., 1 Dec 2011, Analogs for Planetary Exploration. p. 317-347 31 p. (Special Paper of the Geological Society of America; vol. 483).

Research output: Chapter in Book/Report/Conference proceedingChapter

22 Citations (Scopus)
2019

Minerals and microstructure identification using Raman instruments: Evaluation of field and laboratory data in preparation for space mission

Malherbe, C., Hutchinson, I. B., McHugh, M., Lerman, H., Harris, L. V., Ingley, R., Edwards, H. M. G., Parnell, J. & Eppe, G., 5 Aug 2019, In : Journal of Raman Spectroscopy. 11 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Aeolian abrasion of rocks as a mechanism to produce methane in the Martian atmosphere

Safi, E., Telling, J., Parnell, J., Chojnacki, M., Patel, M. R., Realff, J., Blamey, N. J. F., Payler, S., Cockell, C. S., Davies, L., Boothroyd, I. M., Worrall, F. & Wadham, J. L., 3 Jun 2019, In : Scientific Reports. 9, 1, 7 p., 8229 .

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
3 Downloads (Pure)
2013

Sampling methane in basalt on Earth and Mars

McMahon, S., Parnell, J. & Blamey, N. J. F., Apr 2013, In : International Journal of Astrobiology. 12, 2, p. 113-122 10 p.

Research output: Contribution to journalArticle

Open Access
File
15 Citations (Scopus)
5 Downloads (Pure)