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TitleLithochemistry and aqueous metal transport in the Keno Hill mining district, central Yukon Territory
DownloadDownload (whole publication)
AuthorKwong, Y T J; Roots, C; Kettley, W
SourceGeological Survey of Canada, Current Research no. 1994-E, 1994 p. 7-15, https://doi.org/10.4095/194092 (Open Access)
Year1994
PublisherNatural Resources Canada
Documentserial
Lang.English; French
Mediapaper; on-line; digital
RelatedThis publication is contained in Geological Survey of Canada; (1994). Current research 1994-E, Geological Survey of Canada, Current Research no. 1994-E
File formatpdf
ProvinceYukon
NTS105M/13; 105M/14
AreaKeno City; Elsa; Cristal Creek; Keno Hill
Lat/Long WENS-136.0000 -135.0000 64.0000 63.7500
Subjectsgeochemistry; lithogeochemistry; water quality; zinc geochemistry; cadmium geochemistry; indicator elements; copper; lead; arsenic; stream sediment geochemistry; silver; analyses; major element analyses; trace element analyses; geochemical analyses; soil geochemistry; tailings geochemistry; Devonian; Mississippian
Illustrationssketch maps; analyses
Released1994 07 01
AbstractTo facilitate remediation and further exploration in the former silver mining camp of the Keno Hill district, this study investigates pertinent water-rock/sediment interactions. Water, rock and sediment samples collected in early and late summer were analyzed to clarify the regional lithochemistry, seasonal change in water chemistry and the impact of mining on the water quality of local streams. Preliminary results indicate that discharge from many mine workings contains elevated metal concentrations, especially Zn and Cd. However, acid rock drainage is not widespread because of galvanic protection of pyrite from oxidative dissolution and neutralization by carbonate in the country rock. Mechanisms apparently operative to limit aqueous metal transport in small streams include cryogenic precipitation, coprecipitation, sorption and rarely dilution. Because Cu, Pb and As are not easily mobilized in the region their occurrence in stream sediments may indicate a nearby source of silver mineralization.
GEOSCAN ID194092