Výsledky vyhledávání - "John W. Dockrey"

Persistence of Uranium in Old and Cold Subpermafrost Groundwater Indicated by Linking 234U-235U-238U, Groundwater Ages, and Hydrogeochemistry

Autor: Roger Beckie, E.K. Skierszkan, Joyce M. McBeth, Jordi Helsen, Clément P. Bataille, Ghislain de Laplante, Laura-Lee Findlater, John W. Dockrey, K. Ulrich Mayer

Publikováno v: ACS Earth and Space Chemistry. 5:3474-3487

Uranium (U) contamination in groundwater from geogenic sources affects water quality globally. Here, we use a multifaceted isotopic and geochemical approach to elucidate U sources and controls on g...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e5a83b0a35ec87cc177cb1d1ae2aedca
https://doi.org/10.1021/acsearthspacechem.1c00307

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Tracing Molybdenum Attenuation in Mining Environments Using Molybdenum Stable Isotopes

Autor: Dominique Weis, John W. Dockrey, Jared Robertson, Roger Beckie, Soumya Das, K. Ulrich Mayer, Matthew B.J. Lindsay, E.K. Skierszkan, Justin S. Stockwell

Publikováno v: Environmental sciencetechnology. 53(10)

Molybdenum contamination is a concern in mining regions worldwide. Better understanding of processes controlling Mo mobility in mine wastes is critical for assessing potential impacts and developing water-quality management strategies associated with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f3b35fbe5dda081d89161c20d82b2eb
https://pubmed.ncbi.nlm.nih.gov/30998001

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Geochemical Controls on Uranium Release from Neutral-pH Rock Drainage Produced by Weathering of Granite, Gneiss, and Schist

Autor: Roger Beckie, Joyce M. McBeth, Viorica F. Bondici, E.K. Skierszkan, John W. Dockrey, K. Ulrich Mayer

Publikováno v: Minerals, Vol 10, Iss 1104, p 1104 (2020)
Minerals
Volume 10
Issue 12

We investigated geochemical processes controlling uranium release in neutral-pH (pH &ge
6) rock drainage (NRD) at a prospective gold deposit hosted in granite, schist, and gneiss. Although uranium is not an economic target at this deposit, it is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10620e9ffe7c605ac3164f24060ff032
https://doi.org/10.3390/min10121104

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Release of geogenic uranium and arsenic results in water-quality impacts in a subarctic permafrost region of granitic and metamorphic geology

Autor: K. Ulrich Mayer, E.K. Skierszkan, John W. Dockrey, Roger Beckie

Publikováno v: Journal of Geochemical Exploration. 217:106607

This study investigates geogenic U and As mobilization in relation to bedrock geology, groundwater geochemistry, and the presence of mineral deposits in the Dawson Range, Yukon, Canada, a remote subarctic region that has drawn recent interest from mi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c37d809b74cac4d8e3499f8c45ef333
https://doi.org/10.1016/j.gexplo.2020.106607

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Acidic Microenvironments in Waste Rock Characterized by Neutral Drainage: Bacteria–Mineral Interactions at Sulfide Surfaces

Autor: Lesley A. Warren, Matthew B.J. Lindsay, Gordon Southam, K. Mayer, Roger Beckie, John W. Dockrey, Kelsey L. I. Norlund

Publikováno v: Minerals, Vol 4, Iss 1, Pp 170-190 (2014)
Minerals; Volume 4; Issue 1; Pages: 170-190

Microbial populations and microbe-mineral interactions were examined in waste rock characterized by neutral rock drainage (NRD). Samples of three primary sulfide-bearing waste rock types (i.e., marble-hornfels, intrusive, exoskarn) were collected fro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02a812c1ab1234bf43e9ffdfe688f128
http://www.mdpi.com/2075-163X/4/1/170

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