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TitreGeoenvironmental characteristics of Canadian critical metal deposits / Caractéristiques géoenvironnementales de gisements métalliques critiques au Canada
TéléchargerTéléchargement (publication entière)
AuteurParsons, M
SourcePublic presentations of May 8th, 2018: Environmental Geoscience Program, current status of research projects, May 2018; par Jacob, N; Kao, H; Galloway, J; Parsons, M; White, D; Larmagnat, S; Rivard, C; Gammon, P; Savard, M M; Commission géologique du Canada, Présentation scientifique 88, 2018 p. 35-58, https://doi.org/10.4095/308296
Année2018
ÉditeurRessources naturelles Canada
Documentpublication en série
Lang.anglais
DOIhttps://doi.org/10.4095/308296
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Jacob, N; Kao, H; Galloway, J; Parsons, M; White, D; Larmagnat, S; Rivard, C; Gammon, P; Savard, M M; (2018). Public presentations of May 8th, 2018: Environmental Geoscience Program, current status of research projects, May 2018, Commission géologique du Canada, Présentation scientifique no. 88
Formatspdf
ProvinceQuébec
SNRC31G/08
Lat/Long OENS -74.5000 -74.0000 45.5000 45.2500
Sujetsetudes de l'environnement; effets sur l'environnement; gisements minéraux; métaux; pyrochlore; antimoine; cobalt; indium; lithium; niobium; terres rares; exploitation minière; résidus; résidus miniers; fusion; géochimie des éléments en trace; fluorures; radionucléïdes; uranium; thorium; eau souterraine; eaux de surface; qualité de l'eau; radon; géologie du substratum rocheux; lithologie; carbonatites; réseaux hydrographiques; altération; précipités; sovites; apatite; carbonates; lessivage; échantillons d'eau interstitielle; scorie; limnologie; diagraphie géophysique; temperature; conductivité; oxygène; Risque pour l'environnement; Risque pour la santé; Gestion de l'environnement; Prise de décision; géologie de l'environnement; géologie économique; géochimie; minéralogie; hydrogéologie
Illustrationsphotographs; aerial photographs; photomicrographs; spectra; profiles; graphs
ProgrammeGestion du programme, Géosciences de l'environnement
Diffusé2018 06 27; 2018 07 04
Résumé(disponible en anglais seulement)
In recent years, there has been a rapid increase in the global demand for many elements used in green energy and high-tech applications, including antimony (Sb), cobalt (Co), indium (In), lithium (Li), niobium (Nb) and the rare earth elements (REE). Canada has abundant resources of these critical elements, however, we know very little about the potential environmental impacts of mining these resources. The primary objective of this study is to characterize processes controlling the mobility of trace elements and radionuclides in mine wastes and waters at the abandoned St. Lawrence Columbium (SLC) Mine in Oka, Quebec. This mine operated from 1961 to 1976 and at the time was one of the largest Nb producers in the world.
In FY 17-18, GSC scientists continued sampling mine wastes, groundwater and surface waters at the SLC Mine and initiated collaborative projects with the University of Ottawa (slag leaching) and Queen's University (waste rock weathering). Results to-date show that most REEs, uranium (U) and thorium (Th) occur in relatively insoluble minerals, but that the slag is reactive and a potential radiological hazard. Radionuclide levels in mine waters are very low, but elevated levels of fluoride are present in seepage from the tailings. GSC data on slag, groundwater, and pit lake chemistry were shared with the Quebec Ministry of Energy and Natural Resources to help inform ongoing environmental management decisions for the SLC Mine. Results were also shared in a plain language fact sheet, and in both national and international conference presentations.
GEOSCAN ID308296