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Author

  • John Parnell
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
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7 Citations (Scopus)
4 Downloads (Pure)
2011

Weathering of post-impact hydrothermal deposits from the Haughton impact structure: implications for microbial colonization and biosignature preservation

Izawa, M. R. M., Banerjee, N. R., Osinski, G. R., Flemming, R. L., Parnell, J. & Cockell, C. S., 2 Aug 2011, In : Astrobiology. 11, 6, p. 537-550 14 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

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)
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)

Redox-controlled selenide mineralization in the upper old red sandstone

Spinks, S. C., Parnell, J. & Still, J. W., Oct 2014, In : Scottish Journal of Geology. 50, 2, p. 173-182 10 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)
2012

Sampling methane in hydrothermal minerals on Earth and Mars

McMahon, S., Parnell, J. & Blamey, N. J. F., 1 Jul 2012, In : International Journal of Astrobiology. 11, 3, p. 163-167 5 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
2013

Impact-generated hydrothermal systems on Earth and Mars

Osinski, G. R., Tornabene, L. L., Banerjee, N. R., Cockell, C. S., Flemming, R., Izawa, M. R. M., McCutcheon, J., Parnell, J., Preston, L. J., Pickersgill, A. E., Pontefract, A., Sapers, H. M. & Southam, G., Jun 2013, In : Icarus. 224, 2, p. 347-363 17 p.

Research output: Contribution to journalArticle

100 Citations (Scopus)
2017

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
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3 Citations (Scopus)
5 Downloads (Pure)
2016

Raman spectroscopy: Caution when interpreting organic carbon from oxidising environments

Brolly, C., Parnell, J. & Bowden, S., Feb 2016, In : Planetary and space science. 121, p. 53-59 7 p.

Research output: Contribution to journalArticle

Open Access
File
14 Citations (Scopus)
5 Downloads (Pure)
2018

Reduction spheroids preserve a uranium isotope record of the ancient deep continental biosphere

McMahon, S., Hood, A. V. S., Parnell, J. & Bowden, S., 29 Oct 2018, In : Nature Communications. 9, 4505.

Research output: Contribution to journalArticle

Open Access
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1 Citation (Scopus)
5 Downloads (Pure)

Multi-stage pyrite genesis and epigenetic selenium enrichment of Greenburn coals (East Ayrshire)

Bullock, L. A., Parnell, J., Perez, M., Boyce, A., Feldmann, J. & Armstrong, J. G. T., May 2018, In : Scottish Journal of Geology. 54, 1, p. 37-49 13 p.

Research output: Contribution to journalArticle

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

Selenium and molybdenum enrichment in uranium roll-front deposits of Wyoming and Colorado, USA

Bullock, L. A. & Parnell, J., Sep 2017, In : Journal of Geochemical Exploration. 180, p. 101-112 12 p.

Research output: Contribution to journalArticle

Open Access
File
12 Citations (Scopus)
9 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

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
4 Citations (Scopus)
7 Downloads (Pure)
2013

The habitability of vesicles in martian basalt

McMahon, S., Parnell, J., Ponicka, J., Hole, M. J. & Boyce, A., Feb 2013, In : Astronomy & Geophysics. 54, 1, p. 1.17-1.21 5 p.

Research output: Contribution to journalArticle

Open Access
File
5 Citations (Scopus)
5 Downloads (Pure)
2016

Identification, Geochemical Characterisation and Significance of Bitumen among the Grave Goods of the 7th Century Mound 1 Ship-Burial at Sutton Hoo (Suffolk, UK)

Burger, P., Stacey, R. J., Bowden, S. A., Hacke, M. & Parnell, J., 1 Dec 2016, In : PloS ONE. 11, 12, e0166276.

Research output: Contribution to journalArticle

Open Access
File
5 Citations (Scopus)
4 Downloads (Pure)
2017

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)
2012
Open Access
File
18 Citations (Scopus)
5 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)
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
14 Citations (Scopus)
5 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
File
13 Citations (Scopus)
6 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)
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

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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2 Downloads (Pure)

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)
2 Downloads (Pure)
2014

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

88 Citations (Scopus)
2019

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

1 Citation (Scopus)
2016

The geological and microbiological controls on the occurrence, mobility and concentration of Se and Te in coal and black shales

Bullock, L. A., Armstrong, J. G. & Parnell, J., 2016, In : Applied Earth Science. 125, 2, p. 79-79 1 p.

Research output: Contribution to journalAbstract

Open Access
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4 Downloads (Pure)
Open Access
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20 Citations (Scopus)
9 Downloads (Pure)
2019

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)

Methane in sulphides from gold-bearing deposits, Britain and Ireland

Parnell, J., Spinks, S. & Blamey, N., 2019, In : Applied Earth Science. 128, 3, p. 89-95 7 p.

Research output: Contribution to journalArticle

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

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)
2017
Open Access
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8 Citations (Scopus)
54 Downloads (Pure)
2012

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)
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)
2017

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)
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

12 Citations (Scopus)
2011

The Stac Fada "Impact Ejecta" Layer: Not What it Seems

Osinski, G. R., Preston, L., Ferriere, L., Prave, T., Parnell, J., Singleton, A. & Pickersgill, A. E., Jul 2011, In : Meteoritics & Planetary Sciences. 46, p. A181-A181 1 p.

Research output: Contribution to journalArticle

Preservation of organic matter in the STONE 6 artificial meteorite experiment

Parnell, J., Bowden, S. A., Muirhead, D., Blamey, N., Westall, F., Brack, A., Demets, R., Verchovsky, S. & Brandstätter, F., Mar 2011, In : Icarus. 212, 1, p. 390-402 13 p.

Research output: Contribution to journalArticle

11 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)
2017

Impact of oil emplacement on diagenesis in Cretaceous oil sands

Bata, T., Parnell, J., Samaila, N. K. & Still, J., Jun 2017, In : Bulletin of Canadian Petroleum Geology. 65, 2, p. 327-342 16 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
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)

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)
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)
2015

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)
2018

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)
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)
2015
Open Access
File
7 Citations (Scopus)
13 Downloads (Pure)
2018

The deep history of Earth's biomass

McMahon, S. & Parnell, J., 2018, In : Journal of the Geological Society . 175, p. 716-720 5 p.

Research output: Contribution to journalArticle

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