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  • John Parnell
2014

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
File
4 Citations (Scopus)
6 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
File
6 Citations (Scopus)
4 Downloads (Pure)
2011

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)
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)
2015

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
File
13 Citations (Scopus)
10 Downloads (Pure)
2017

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
8 Citations (Scopus)
13 Downloads (Pure)
2019

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)
2018

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
4 Citations (Scopus)
7 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)
2015

Selenium and tellurium enrichment in palaeo-oil reservoirs

Parnell, J., Bellis, D., Feldmann, J. & Bata, T., Jan 2015, In : Journal of Geochemical Exploration. 148, p. 169-173 5 p.

Research output: Contribution to journalArticle

18 Citations (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)
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

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
7 Citations (Scopus)
1 Downloads (Pure)
2016

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)
2018

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)
2017

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
13 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)
2018
Open Access
File
1 Citation (Scopus)
9 Downloads (Pure)
2012

Ordovician ash geochemistry and the establishment of land plants

Parnell, J. & Foster, S., 28 Aug 2012, In : Geochemical Transactions. 13, 7.

Research output: Contribution to journalArticle

Open Access
File
8 Citations (Scopus)
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)
3 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)
7 Downloads (Pure)
2014

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)
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

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)
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)
2016

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
File
9 Citations (Scopus)
5 Downloads (Pure)
2011

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)
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
File
1 Citation (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)
2020

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
2018

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)
8 Downloads (Pure)
2014

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
File
6 Citations (Scopus)
5 Downloads (Pure)
2011

The age of the Mesoproterozoic Stoer Group sedimentary and impact deposits, NW Scotland

Parnell, J., Mark, D., Fallick, A. E., Boyce, A. & Thackrey, S., Mar 2011, In : Journal of the Geological Society . 168, 2, p. 349-358 10 p.

Research output: Contribution to journalArticle

38 Citations (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
File
4 Downloads (Pure)
2015
Open Access
File
7 Citations (Scopus)
13 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)
2016

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)
2014

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
File
2 Citations (Scopus)
5 Downloads (Pure)
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)
2017
Open Access
File
5 Citations (Scopus)
53 Downloads (Pure)
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)
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)
2016
Open Access
File
21 Citations (Scopus)
9 Downloads (Pure)
2017

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)
108 Downloads (Pure)
2019

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
2 Downloads (Pure)
2017

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)
7 Downloads (Pure)
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)
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)

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