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selenium

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Journal Article
Published: 03 March 2022
Geochemistry: Exploration, Environment, Analysis (2022) 22 (2): geochem2021-063.
... for GSL and AAG. All rights reserved 2022 © 2022 The Author(s) groundwater redox selenium massive sulfide stable isotope mineral exploration Understanding water origin, recharge, water–rock interactions and redox processes is critical to the study of the mobility of deleterious species...
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Journal Article
Journal: Economic Geology
Published: 01 February 2022
Economic Geology (2022)
... , A. , Keller , K. , and Schilling , J.-G. , 2017 , Selenium, tellurium and sulfur variations in basalts along the Reykjanes ridge and extension over Iceland, from 50 N to 65 N : Palisades, New York, Interdisciplinary Earth Data Alliance (IEDA) , v. 10 , doi: 10.1594/IEDA/100700 . Godel , B...
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Journal Article
Published: 13 December 2021
The Canadian Mineralogist (2021) 59 (6): 1453–1484.
... sulfides during post-cumulus alteration of the Luanga Complex. Selenium, Te, Bi, and Pd were also lost together with S, whereas As and Sb were expelled from base-metal sulfide structures and combined with platinum-group elements to form platinum-group minerals, suggesting they may play a role fixating...
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Journal Article
Journal: Economic Geology
Published: 01 November 2021
Economic Geology (2021) 116 (7): 1669–1686.
... spectrometers at Cardiff University. Sulfide modes were determined using ImageJ software of element maps. Selenium concentrations of base metal sulfides were determined in situ by laser-ablation ICP-MS using a NewWave Research UP-213 nm ultraviolet laser ablation system coupled to a ThermoX series 2 ICP-MS...
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Series: GSA Special Papers
Published: 02 August 2021
DOI: 10.1130/2021.2550(09)
EISBN: 9780813795508
... for this study ( n = 4) were ~4 pg for Re, ~3 pg for Ir, and ~22 pg for Pt. All reported concentration values were blank corrected. Selenium and Tellurium Concentrations and Se Isotope Measurements In order to simultaneously purify selenium (Se) and tellurium (Te) from a single sample digest, we followed...
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Journal Article
Journal: Geology
Published: 23 July 2021
Geology (2021) 49 (11): 1327–1331.
...Alexandre Raphael Cabral; Stephan König; Benjamin Eickmann; Michael Brauns; Miguel Tupinambá; Bernd Lehmann; María Isabel Varas-Reus Abstract Platinum-rich nuggets offer an opportunity for understanding how precious metals accumulate. We analyzed the selenium (Se) isotopic composition of Se-rich...
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Journal Article
Journal: Geology
Published: 19 June 2020
Geology (2020) 48 (10): 1018–1022.
..., 2010 ) perhaps to cope with low concentrations of the element. Furthermore, Cd substitution for Zn, a well-studied phenomenon ( Morel, 2013 ), would have been exploited. Selenium in the oceans did not rise significantly until 800 Ma. Sustained low levels of Se triggered the interplay between...
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Journal Article
Published: 01 May 2020
Russ. Geol. Geophys. (2020) 61 (5-6): 611–633.
... obtained according to a standard XRF analysis. Gold, silver, selenium, and tellurium were determined by an ultra-trace ICP-MS method following an aqua regia digestion procedure with the detection limits varying as follows: Au = 0.4 ppb, Ag = 2–10 ppb, Se = 0.04–0.1 ppm, and Te = 0.01–0.02 ppm...
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Journal Article
Published: 08 April 2020
The Canadian Mineralogist (2020) 58 (2): 203–221.
... microprobe analyses. The field of sulfide melt is extensive at 900 °C and retreats progressively towards the Cu–Se side at 750 °C; residual selenide melt persists at 600 °C. The selenium analogue of iss was found only at and below 600 °C; eskebornite becomes individualized at and below 500 °C, whereas...
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Journal Article
Published: 29 January 2020
Quarterly Journal of Engineering Geology and Hydrogeology (2020) 53 (3): 443–451.
... techniques result in improved selenium concentrations of discharge water as compared to conventional reclamation for valley-fills constructed of blasted rock. Comparisons investigated if groundwater and contaminant desorption could be improved by altering valley-fill construction. Three-dimensional finite...
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Journal Article
Journal: Economic Geology
Published: 01 January 2020
Economic Geology (2020) 115 (1): 101–128.
... (e.g., sphalerite and chalcopyrite; Fig. 6A, B ), showing that these Ag-bearing minerals formed late relative to the base metal sulfides. Canfieldite has Ag, Sn, and S contents that range from 59.7 to 69.4, 9.5 to 19.3, and 10.6 to 21.3 wt %, respectively ( Appendix Table A1 ). The selenium content...
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Journal Article
Journal: Economic Geology
Published: 01 September 2019
Economic Geology (2019) 114 (6): 1135–1158.
... , Geochemical fingerprinting of the Earth’s oldest rocks: Geology (Boulder , Colo.) , v. 42 , p. 175 – 176 , http://dx.doi.org/10.1130/focus 022014.1 . Queffurus , M. , and Barnes , S.-J. , 2015 , A review of sulfur to selenium ratios in magmatic nickel-copper and platinum-group element...
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Journal Article
Published: 01 May 2019
Environmental & Engineering Geoscience (2019) 25 (2): 179–188.
..., iron, barium, chromium, arsenic, copper, manganese, nickel, selenium, lead, and zinc were determined for source partition and heavy metal pollution index (HMPI) assessment during both the spring and winter seasons. Four important dominant factors in the principal component analysis depicted, in toto...
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Journal Article
Journal: Economic Geology
Published: 01 March 2019
Economic Geology (2019) 114 (2): 201–206.
.... 23 , p. 471 – 474 . Cousins , C.A. , and Kinloch , E.D. , 1976 , Some observations on textures and inclusions in alluvial platinoids : Economic Geology , v. 71 , p. 1377 – 1398 . Cutter , G.A. , 1982 , Selenium in reducing waters : Science , v. 217 , p. 829 – 831...
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Journal Article
Published: 01 February 2019
American Mineralogist (2019) 104 (2): 190–206.
.... , and Clarke Barrie , D.B. ( 2002 ) Selenium, tellurium, arsenic and antimony contents of primary mantle sulfides . Canadian Mineralogist , 40 , 637 – 650 . Hayden , L.A. , Van Orman , J.A. , McDonough , W.F. , Ash , R.D. , and Goodrich , C.A. ( 2011 ) Trace element...
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Journal Article
Published: 08 October 2018
Mineralogical Magazine (2019) 83 (3): 419–426.
...Degao Zhai; Luca Bindi; Panagiotis C. Voudouris; Jiajun Liu; Stylianos F. Tombros; Kuan Li Abstract During a study of the ore minerals belonging to the recently discovered Shuangjianzishan Ag–Pb–Zn deposit in NE China, we have discovered exceptional selenium enrichment in canfieldite (up to 11.6 wt...
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Journal Article
Published: 21 August 2018
Quarterly Journal of Engineering Geology and Hydrogeology (2018) 51 (4): 503–508.
...John Parnell; Liam Bullock; Joseph Armstrong; Magali Perez Abstract The Bowland Shale Formation is anomalously rich in selenium (Se) at levels an order of magnitude greater than other black shales. The Mam Tor landslide, Derbyshire, England, offers an opportunity to measure whether the Se anomaly...
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Journal Article
Published: 01 June 2018
Mineralogical Magazine (2018) 82 (3): 697–724.
... 08 2017 05 02 2018 Copyright © Mineralogical Society of Great Britain and Ireland 2018 2018 Mineralogical Society of Great Britain and Ireland mafic VMS selenium Troodos Ophiolite LA-ICP-MS sulfides Volcanogenic massive sulfide (VMS) deposits are important sources...
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Journal Article
Published: 01 June 2018
Mineralogical Magazine (2018) 82 (3): 649–674.
... FeWO 4 Fe–S–O Melanterite FeSO 4 ·7H 2 O Fe–S Pyrite FeS 2 epithermal gold deposit Gaching ore occurrence AuSe Au(Te,Se,S) Au 2 Te 4 (Se,S) 3 unnamed phases Au oxide oxygen fugacity tellurium fugacity selenium fugacity sulfur fugacity Epithermal deposits...
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Journal Article
Journal: Economic Geology
Published: 01 May 2018
Economic Geology (2018) 113 (3): 675–698.
... variations of PGE tenors in the Jinchuan Ni-Cu-PGE deposit, NW China : Mineralium Deposita , v. 51 , p. 557 – 574 . Eckstrand , O.R. , and Hulbert , L.J. , 1987 , Selenium and the source of sulfur in magmatic nickel and platinum deposits : Geological Association of Canada-Mineralogical...
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