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TitleMinor and trace element distribution in the heavy minerals of the rivers and streams of the Keno Hill District, Yukon Territory
AuthorGleeson, C F; Boyle, R W
SourceGeological Survey of Canada, Paper 76-31, 1980, 9 pages (4 sheets), (Open Access)
LinksCanadian Database of Geochemical Surveys, downloadable files
LinksBanque de données de levés géochimiques du Canada, fichiers téléchargeables
PublisherNatural Resources Canada
MapsPublication contains 4 maps
Map Info.location, 1:100,000
Mediapaper; on-line; digital
File formatpdf
NTS105M/13; 105M/14; 105M/15; 106D/01; 106D/02; 106D/03; 106D/04
AreaKeno Hill District
Lat/Long WENS-136.0000 -134.0000 64.2500 63.7500
Subjectsmineralogy; geochemistry; trace element geochemistry; water geochemistry; heavy minerals
Released1981 03 01; 2015 08 06
AbstractThe distribution of selected elements in heavy minerals from the drainage systems of the Keno Hill district, Yukon is described. Most of the known mineral deposits of the district are reflected by higher than average contents of one or more elements in the heavy mineral fractions, and a number of anomalous sites in streams in the drainage net were found that merit further investigation. The conclusion is drawn that low density reconnaissance stream sediment surveys involving geochemical analyses of heavy mineral concentrates is an effective way of outlining mineralized areas. In the mountainous regions of Yukon elemental dispersion in the drainage systems is due as much to transport of particulate matter as to hydrologic processes. Traditionally heavy mineral surveys have been used to define areas enriched in metals having a low degree of chemical mobility in the supergene cycle. The present study indicates, however, that analyses of heavy mineral concentrates for the chemically more mobile elements can outline metalliferous areas. In this respect geochemical and mineralogical analyses of heavy mineral concentrates from the drainage net can complement normal stream sediment surveys and provide additional information that can aid in the interpretation of the stream sediment data. Finally, it is notable that particulate dispersion trains of hypogene and supergene minerals may be more extensive than hydromorphic trains especially in carbonate terranes where the chemical mobility of some elements may be restricted due to the high pH.