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TitleLate Cenozoic geology, Ancient Pacific Margin NATMAP Project, report 6: glacial limits, Middle Pleistocene sediments, and placer gold in the Scroggie Creek basin, south Klondike placer region, Yukon Territory
AuthorRotheisler, P N; Jackson, L E, Jr; Hicock, S R
SourceGeological Survey of Canada, Current Research (Online) no. 2003-A1, 2003, 8 pages, (Open Access)
PublisherNatural Resources Canada
Mediaon-line; digital; CD-ROM
RelatedThis publication is contained in the following publications
File formatpdf
NTS115O/01; 115O/02; 115J/15; 115J/16
AreaScroggie Creek; Mariposa Creek
Lat/Long WENS-139.0000 -138.0000 63.2500 62.7500
Subjectssurficial geology/geomorphology; economic geology; stratigraphy; Pleistocene; gold; mineralization; placer deposits; glacial deposits; glacial history; gravels; meltwater channels; mineral potential; Scroggie Creek Basin; glacial limits; Cenozoic
Illustrationsphotographs; sketch maps; cross-sections; stereonets
ProgramAncient Pacific Margin NATMAP Project
Released2003 01 23
AbstractGravel type and the distribution of erratics along the Walhalla-lower Scroggie Creek valley imply an all-time limit of glaciation between those proposed by previous researchers. Associated valleytrain deposits fine downstream along Walhalla and Scroggie creeks. A depositional record potentially spanning two Middle Pleistocene stadial/interstadial cycles occurs along Mariposa Creek. Interstadials or interglacials are represented by organic sediments rich in wood detritus including branches and logs, whereas stades or glaciations are represented by interstratified stony colluvium that lacks organic content. Placer gold in the Scroggie Creek basin is typically coarse and difficult to procure by panning. An examination of gold recovered by placer mining suggests that at least two lode sources occur in the basin. The re-evaluation of the all-time limits of glaciation suggests that a large area of undisturbed terrain within the Scroggie Creek and Walhalla Creek basins may contain viable placer deposits.