Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Gwendy E.M. Hall"'
Publikováno v:
Geochemistry: Exploration, Environment, Analysis. 16:62-84
In this study, results by direct portable XRF (‘pXRF’) on unsieved till samples were compared with those by established laboratory methods (aqua regia or fusion ICP-MS and ICP-ES) on the In general, the performance of pXRF in the four test areas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1247450e31ee49189e643da1e2ca3657
https://doi.org/10.1144/geochem2015-371
https://doi.org/10.1144/geochem2015-371
Publikováno v:
Geochemistry: Exploration, Environment, Analysis. 15:273-291
Metallurgical pretreatment of As-bearing ores involves oxidation of sulphides (most often As-bearing pyrite, arsenopyrite or enargite) resulting in complex oxidized As-bearing products. We have evaluated roasting pretreatment of arsenic-bearing ores
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d9c3bfb76c22cc486e3870adfaef64d
https://doi.org/10.1144/geochem2013-238
https://doi.org/10.1144/geochem2013-238
Publikováno v:
Geochemistry: Exploration, Environment, Analysis. 14:99-123
This paper describes a project sponsored by the Canadian Mining Industry Research Organisation (CAMIRO) to evaluate the strengths and weaknesses of portable XRF for use in mineral exploration and mining and to develop best-practice protocols in the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::def1a760b0e91aadc18ebe4de367d62f
https://doi.org/10.1144/geochem2013-241
https://doi.org/10.1144/geochem2013-241
Autor:
Gwendy E.M. Hall, Alain Plouffe, Isabelle McMartin, M.B. McClenaghan, Robert G. Garrett, Roger C. Paulen, W.A. Spirito, Janet E. Campbell
Publikováno v:
Geochemistry: Exploration, Environment, Analysis. 13:285-301
The Geological Survey of Canada (GSC) has developed field and lab methods protocols to guide till sample collection, processing, geochemical analysis of the till matrix, monitoring of quality assurance/quality control, and archiving procedures for re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ff5d07d3e6678c5b126a95df88817e3
https://doi.org/10.1144/geochem2011-083
https://doi.org/10.1144/geochem2011-083
Publikováno v:
Geochemistry: Exploration, Environment, Analysis. 11:179-192
Chronic exposure to high concentrations of arsenic (As) in windblown and vehicle-raised dust from tailings sites in Nova Scotia poses a potential health risk to recreational users of these areas and to nearby residents. The exposure may involve inhal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b07c2cc82008c0f342ff2e9bc677753
https://doi.org/10.1144/1467-7873/09-246
https://doi.org/10.1144/1467-7873/09-246
Publikováno v:
Applied Geochemistry. 24:1438-1453
An objective of the North American Soil Geochemical Landscapes Project is to provide relevant data concerning bioaccessible concentrations of elements in soil to government and other institutions undertaking environmental studies. A protocol was deve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e864742e796bf1d5b971f21c44868aed
https://doi.org/10.1016/j.apgeochem.2009.04.014
https://doi.org/10.1016/j.apgeochem.2009.04.014
Autor:
Gwendy E.M. Hall, J.E. Vaive, Kevin Telmer, Deborah A. Kliza-Petelle, Graeme F. Bonham-Carter, Pierre Pelchat
Publikováno v:
Geochemistry: Exploration, Environment, Analysis. 6:163-177
The application of a sequential extraction scheme provides information on the phase association of elements in a sample, such phases being described, for example, as ‘exchangeable/adsorbed’, ‘amorphous Fe/Al oxides’ and ‘soluble organics’
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8181255122f4ee592421f8eace78879c
https://doi.org/10.1144/1467-7873/05-091
https://doi.org/10.1144/1467-7873/05-091
Autor:
J.E. Vaive, Isabelle Girard, Aloys Bory, Christian Zdanowicz, Pierre E. Biscaye, Yuri Amelin, Jeanne B. Percival, Gwendy E.M. Hall
Publikováno v:
Geochimica et Cosmochimica Acta
Geochimica et Cosmochimica Acta, Elsevier, 2006, 70 (14), pp.3493-3507. ⟨10.1016/j.gca.2006.05.005⟩
Geochimica et Cosmochimica Acta, Elsevier, 2006, 70 (14), pp.3493-3507. ⟨10.1016/j.gca.2006.05.005⟩
International audience; In April 2001, a major atmospheric dustfall event occurred in the St. Elias Mountains, Yukon Territory, Canada. Field samples were collected and analyzed for particle size, mineralogy, chemical composition and Sr, Nd and Pb is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a661d6ea1a54d6cdfc6bfd8b06efde4
https://doi.org/10.1016/j.gca.2006.05.005
https://doi.org/10.1016/j.gca.2006.05.005
Autor:
Claudio F. Andrade, Stephen R. Walker, Gwendy E.M. Hall, Antonio Lanzirotti, Heather E. Jamieson
Publikováno v:
The Canadian Mineralogist. 43:1205-1224
Understanding the solid-phase speciation of arsenic in soils and sediments is important in evaluations of the potential mobility of arsenic and of its bio-availability in the environment. This is especially true in mine-infl uenced environments, wher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6040c014b4ba905d2678d5c13c413a22
https://doi.org/10.2113/gscanmin.43.4.1205
https://doi.org/10.2113/gscanmin.43.4.1205