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  • John Parnell

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
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6 Citations (Scopus)
11 Downloads (Pure)

A demonstration of an affinity between pyrite and organic matter in a hydrothermal setting

Lindgren, P., Parnell, J., Holm, N. G. & Broman, C., 7 Feb 2011, In : Geochemical Transactions. 12, 7 p., 3.

Research output: Contribution to journalArticle

14 Citations (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
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1 Citation (Scopus)
3 Downloads (Pure)
Open Access
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18 Citations (Scopus)
5 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
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12 Downloads (Pure)

A Neoproterozoic petroleum system in the Dalradian Supergroup, Scottish Caledonides

Bata, T. & Parnell, J., Mar 2014, In : Journal of the Geological Society . 171, 2, p. 145-148 4 p.

Research output: Contribution to journalArticle

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

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)

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
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2 Citations (Scopus)
3 Downloads (Pure)

Ar-40/Ar-39 dating of exceptional concentration of metals by weathering of Precambrian rocks at the Precambrian-Cambrian boundary

Parnell, J., Mark, D. F., Frei, R., Fallick, A. E. & Ellam, R. M., Jun 2014, In : Precambrian Research. 246, p. 54-63 10 p.

Research output: Contribution to journalArticle

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

Asphaltene detection using Surface Enhanced Raman Scattering (SERS)

Alabi, O. O., Edilbi, A. N. F., Brolly, C., Muirhead, D., Parnell, J., Stacey, R. & Bowden, S. A., 2015, In : Chemical Communications. 51, 33, p. 7152-7155 4 p.

Research output: Contribution to journalArticle

Open Access
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13 Citations (Scopus)
10 Downloads (Pure)

A TEM and EELS study of carbon in a melt fragment from the Gardnos impact structure

Lindgren, P., Hallis, L., Hage, F. S., Lee, M. R., Parnell, J., Plan, A., Doye, A. & MacLaren, I., 1 Nov 2019, In : Meteoritics and Planetary Science. 54, 11, p. 2698-2709 12 p.

Research output: Contribution to journalArticle

Open Access
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3 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
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6 Downloads (Pure)

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)

Cadmium sulfide in a Mesoproterozoic terrestrial environment

Parnell, J., Still, J., Spinks, S., Thayalan, W. & Bowden, S., Feb 2014, In : Mineralogical Magazine. 78, 1, p. 47-54 8 p.

Research output: Contribution to journalArticle

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

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)
Open Access
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8 Citations (Scopus)
54 Downloads (Pure)

Circumstellar habitable zones for deep terrestrial biospheres

McMahon, S. H., O'Malley-James, J. & Parnell, J., 1 Sep 2013, In : Planetary and space science. 85, p. 312-318 7 p.

Research output: Contribution to journalArticle

Open Access
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13 Citations (Scopus)
6 Downloads (Pure)

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)

Clean subglacial access: prospects for future deep hot-water drilling

Makinson, K., Pearce, D., Hodgson, D. A., Bentley, M. J., Smith, A. M., Tranter, M., Rose, M., Ross, N., Mowlem, M., Parnell, J. & Siegert, M. J., 28 Jan 2016, In : Philosophical transactions of the royal society a-Mathematical physical and engineering sciences. 374, 2059, 20140304.

Research output: Contribution to journalArticle

Open Access
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9 Citations (Scopus)
5 Downloads (Pure)

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

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
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1 Citation (Scopus)
6 Downloads (Pure)

Constraining causes of fish mass mortality using ultra-high-resolution biomarker measurement

Othman Wilson, A., Parnell, J., Boyce, A. J. & Bowden, S. A., Oct 2014, In : Chemical Geology. 385, p. 156-162 7 p.

Research output: Contribution to journalArticle

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

Contrasting microfossil preservation and lake chemistries within the 1200–1000 Ma Torridonian Supergroup of NW Scotland

Wacey, D., Brasier, M., Parnell, J., Culwick, T., Bowden, S., Spinks, S., Boyce, A. J., Davidheiser-Kroll, B., Jeon, H., Saunders, M. & Kilburn, M. R., 2017, Earth System Evolution and Early Life: a Celebration of the Work of Martin Brasier. Brasier, A. T., McIlroy, D. & McLoughlin, N. (eds.). Geological Society of London, Vol. 448. p. 105-119 15 p. (Geological Society Special Publications; vol. 448, no. 1).

Research output: Chapter in Book/Report/Conference proceedingChapter

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

Deep hydrothermal activity in hydrocarbon reservoirs, South Kuwait

Al-Hajeri, M. M., Parnell, J., Bowden, S., Costanzo, A. & Feely, M., Jan 2017, In : Arabian Journal of Geosciences. 10, 2, 41.

Research output: Contribution to journalArticle

3 Citations (Scopus)

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
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1 Citation (Scopus)
8 Downloads (Pure)

Detecting ancient life: Investigating the nature and origin of possible stromatolites and associated calcite from a one billion year old lake

Brasier, A. T., Dennis, P. F., Still, J., Parnell, J., Culwick, T., Brasier, M. D., Wacey, D., Bowden, S. A., Crook, S., Boyce, A. J. & Muirhead, D. K., 15 Jul 2019, In : Precambrian Research. 328, p. 309-320 12 p.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)

Detection of reduced carbon in a basalt analogue for martian nakhlite: a signpost to habitat on Mars

Parnell, J., McMahon, S., Blamey, N. J. F., Hutchinson, I. B., Harris, L. V., Ingley, R., Edwards, H. G. M., Lynch, E. & Feely, M., Apr 2014, In : International Journal of Astrobiology. 13, 2, p. 124-131 8 p.

Research output: Contribution to journalArticle

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

Determination of Se and Te in coal at ultra-trace levels by ICP-MS after microwave-induced combustion

Rondan, F. S., Henn, A. S., Mello, P. A., Perez, M., Bullock, L. A., Parnell, J., Feldmann, J., Flores, E. M. M. & Mesko, M. F., 1 May 2019, In : Journal of Analytical Atomic Spectrometry. 34, 5, p. 998-1004 7 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Determination of Se at low concentration in coal by collision/reaction cell technology inductively coupled plasma mass spectrometry

Henn, A. S., Rondan, F. S., Mesko, M. F., Mello, P. A., Perez, M., Armstrong, J., Bullock, L. A., Parnell, J., Feldmann, J. & Flores, E. M. M., May 2018, In : Spectrochimica Acta - Part B Atomic Spectroscopy. 143, p. 48-54 7 p.

Research output: Contribution to journalArticle

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

Ellsworth Subglacial Lake, West Antarctica: A Review of Its History and Recent Field Campaigns

Ross, N., Siegert, M. J., Rivera, A., Bentley, M. J., Blake, D., Capper, L., Clarke, R., Cockell, C. S., Corr, H. F. J., Harris, W., Hill, C., Hindmarsh, R. C. A., Hodgson, D. A., King, E. C., Lamb, H., Maher, B., Makinson, K., Mowlem, M., Parnell, J., Pearce, D. A. & 7 others, Priscu, J., Smith, A. M., Tait, A., Tranter, M., Wadham, J. L., Whalley, W. B. & Woodward, J., Jan 2011, Antarctic Subglacial Aquatic Environments. Siegert, M. J., Kennicutt II, M. C. & Bindschadler, R. A. (eds.). American Geophysical Union, p. 221-233 13 p. (Geophysical Monograph Series; vol. 192).

Research output: Chapter in Book/Report/Conference proceedingChapter

16 Citations (Scopus)
Open Access
File
5 Citations (Scopus)
53 Downloads (Pure)

Emplacement of oil in the Devonian Weardale Granite of northern England

Baba, M., Parnell, J., Bowden, S., Armstrong, J., Perez, M. & Wang, X., Nov 2019, In : Proceedings Of The Yorkshire Geological Society. 62, 4, p. 229-237 9 p.

Research output: Contribution to journalArticle

Open Access
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7 Downloads (Pure)

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
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7 Downloads (Pure)

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)

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)

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
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35 Citations (Scopus)
5 Downloads (Pure)

Evidence for microbial activity in British and Irish Ordovician pillow lavas

Parnell, J., Hole, M. & Boyce, A. J., 1 Jul 2015, In : Geological Journal. 50, 4, p. 497-508 12 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

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)

Fungal transformation of selenium and tellurium located in a volcanogenic sulfide deposit

Liang, X., Perez, M. A. M-J., Zhang, S., Song, W., Armstrong, J. G., Bullock, L. A., Feldmann, J., Parnell, J., Csetenyi, L. & Gadd, G. M., 20 Apr 2020, In : Environmental Microbiology. 19 p.

Research output: Contribution to journalArticle

Open Access

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)

Geochemistry and metallogeny of Neoproterozoic pyrite in oxic and anoxic sediments

Parnell, J., Perez, M., Armstrong, J., Bullock, L., Feldmann, J. & Boyce, A. J., 2 May 2018, In : Geochemical Perspectives Letters. 7, p. 12-16 5 p.

Research output: Contribution to journalArticle

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

Geochemistry and origin of organic-rich sediment veins in fractured granitic basement, Helmsdale, Sutherlandshire, UK

Parnell, J., Baba, MU., Bowden, S. & Bullock, L., Dec 2017, In : Marine and Petroleum Geology. 88, p. 107-114 8 p.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
11 Downloads (Pure)

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)

Gold in Devono-Carboniferous red beds of northern Britain

Parnell, J., Still, J., Spinks, S. & Bellis, D., Mar 2016, In : Journal of the Geological Society . 173, 2, p. 245-248 4 p.

Research output: Contribution to journalArticle

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

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)

Heavy metal, sex and granites: Crustal differentiation and bioavailability in the mid-Proterozoic

Parnell, J., Hole, M., Boyce, A. J., Spinks, S. & Bowden, S., Aug 2012, In : Geology. 40, 8, p. 751-754 4 p.

Research output: Contribution to journalArticle

20 Citations (Scopus)

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)

High selenium in the Carboniferous Coal Measures of Northumberland, North East England

Bullock, L. A., Parnell, J., Perez, M., Armstrong, J. G., Feldmann, J. & Boyce, A. J., 1 Jul 2018, In : International Journal Of Coal Geology. 195, p. 61-74 14 p.

Research output: Contribution to journalArticle

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

Hydrogen from Radiolysis of Aqueous Fluid Inclusions during Diagenesis

Parnell, J. & Blamey, N., 25 Jul 2017, In : Minerals. 7, 8, p. 1-8 8 p., 130.

Research output: Contribution to journalArticle

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