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  • 2020
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  • John Parnell
2020

Carbon in mineralized ultramafic intrusions, Caledonides, northern Britain

Parnell, J., Armstrong, J., Brolly, C., Boyce, A. J. & Heptinstall, E., 31 Jul 2020, In : Lithos. 374-375, 10 p., 105711.

Research output: Contribution to journalArticle

Open Access
File

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., Jun 2020, In : Environmental Microbiology. 22, 6, p. 2346-2364 19 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Kilometre-scale compartmentalization of fluid sources to a fossil hydrothermal system

Armstrong, J., Parnell, J., Boyce, A. J. & Bullock, L. A., Jan 2020, In : Ore Geology Reviews. 116, 103207.

Research output: Contribution to journalArticle

Open Access
File
4 Downloads (Pure)
2019

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)
4 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
File
4 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
8 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
File
1 Citation (Scopus)
7 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)
1 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

3 Citations (Scopus)

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
File
1 Citation (Scopus)
8 Downloads (Pure)

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)
2 Downloads (Pure)

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

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

2 Citations (Scopus)

Mobilisation of arsenic, selenium and uranium from Carboniferous black shales in west Ireland

Armstrong, J. G. T., Parnell, J., Bullock, L. A., Boyce, A. J., Perez, M. & Feldmann, J., Oct 2019, In : Applied Geochemistry. 109, 104401.

Research output: Contribution to journalArticle

Open Access
File
3 Downloads (Pure)

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
2 Downloads (Pure)

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
6 Downloads (Pure)

Oil charge and biodegradation history in an exhumed fractured reservoir, Devonian, UK

Baba, MU., Parnell, J., Muirhead, D. & Bowden, S., Mar 2019, In : Marine and Petroleum Geology. 101, p. 281-289 9 p.

Research output: Contribution to journalArticle

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

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)
8 Downloads (Pure)

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)
9 Downloads (Pure)

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
1 Citation (Scopus)
3 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)
9 Downloads (Pure)

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
File
9 Citations (Scopus)
9 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
4 Citations (Scopus)
9 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
8 Citations (Scopus)
9 Downloads (Pure)

Liberation of Selenium from Alteration of the Bowland Shale Formation: Evidence from the Mam Tor Landslide

Parnell, J., Bullock, L., Armstrong, J. & Perez, M., Nov 2018, In : Quarterly Journal of Engineering Geology and Hydrogeology. 51, 4, p. 503-508 6 p.

Research output: Contribution to journalArticle

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

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
File
1 Citation (Scopus)
6 Downloads (Pure)

Selenium and tellurium resources in Kisgruva Proterozoic volcanogenic massive sulphide deposit (Norway)

Bullock, L. A., Perez, M., Armstrong, J. G., Parnell, J., Still, J. & Feldmann, J., Aug 2018, In : Ore Geology Reviews. 99, p. 411-424 15 p.

Research output: Contribution to journalArticle

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

Tellurium, selenium and cobalt enrichment in Neoproterozoic black shales, Gwna Group, UK: Deep marine trace element enrichment during the Second Great Oxygenation Event

Armstrong, J. G. T., Parnell, J., Bullock, L. A., Perez, M., Boyce, A. & Feldmann, J., Jun 2018, In : Terra Nova. 30, 3, p. 244-253 10 p.

Research output: Contribution to journalArticle

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

Tellurium and selenium in Mesoproterozoic red beds

Parnell, J., Spinks, S. & Brolly, C., Feb 2018, In : Precambrian Research. 305, p. 145-150 6 p.

Research output: Contribution to journalArticle

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

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
8 Citations (Scopus)
3 Downloads (Pure)

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
2 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
7 Citations (Scopus)
12 Downloads (Pure)
Open Access
File
10 Citations (Scopus)
63 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
File
3 Citations (Scopus)
9 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)
Open Access
File
5 Citations (Scopus)
54 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
2 Citations (Scopus)
12 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)
9 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)
6 Downloads (Pure)

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)

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
5 Citations (Scopus)
7 Downloads (Pure)

Quartz-amethyst hosted hydrocarbon-bearing fluid inclusions from the green ridge breccia in the snoqualmie granite, North Cascades,WA, USA

Feely, M., Costanzo, A., Lindner, F., George, J., Parnell, J., Bowden, S., Baba, MU. & Owens, P., 19 Sep 2017, In : Minerals. 7, 9, p. 1-16 16 p., 174.

Research output: Contribution to journalArticle

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

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)
11 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
16 Citations (Scopus)
19 Downloads (Pure)

Selenium and other trace element mobility in waste products and weathered sediments at Parys Mountain copper mine, Anglesey, UK

Bullock, L. A., Parnell, J., Perez, M., Feldmann, J. & Armstrong, J. G., 22 Nov 2017, In : Minerals. 7, 11, p. 1-19 19 p., 229.

Research output: Contribution to journalArticle

Open Access
File
9 Citations (Scopus)
20 Downloads (Pure)
Open Access
File
7 Citations (Scopus)
48 Downloads (Pure)

Subsurface biodegradation of crude oil in a fractured basement reservoir, Shropshire, UK

Parnell, J., Baba, M., Bowden, S. & Muirhead, D., 7 Mar 2017, In : Journal of the Geological Society . 174, 4, p. 655-666 12 p.

Research output: Contribution to journalArticle

Open Access
File
14 Citations (Scopus)
9 Downloads (Pure)