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TitleTwenty-six archival stratigraphic sections in Paleoproterozoic to Neoproterozoic strata from the Coal Creek inlier, southern Ogilvie Mountains, Yukon
AuthorThompson, R I; Roots, C F; Geological Survey of Canada
SourceGeological Survey of Canada, Open File 7925, 2015, 36 pages,
PublisherNatural Resources Canada
Mediaon-line; digital
File formatreadme
File formatpdf; kmz; rtf
NTS116B; 116C
AreaCoal Creek Inlier; Ogilvie Mountains
Lat/Long WENS-141.0000 -138.0000 65.0000 64.0000
Lat/Long WENS-142.0000 -138.0000 65.0000 64.0000
Subjectsstratigraphy; sedimentology; lithology; stratigraphic correlations; systematic stratigraphy; sedimentary rocks; carbonates; shales; siltstones; sandstones; conglomerates; basalts; rhyolites; bedrock geology; Mackenzie Mountain Supergroup; Windemere Supergroup; Fifteenmile Group; Mount Harper Group; Hay Creek Group; Callison Lake Dolostone; Craggy Dolostone; Rapitan Group; Gillespie Lake Group; Quartet Group; Fairchild Lake Group; Precambrian; Proterozoic
Illustrationsstratigraphic sections; location maps
Natural Resources Canada Library - Ottawa (Earth Sciences)
ProgramVancouver Subdivision Operations, GSC Pacific Division
Released2015 11 18
AbstractThis Open File presents 26 stratigraphic sections measured by Bob Thompson during regional mapping of the northeast half of Dawson map area (NTS 116 B/C). The sections are previously unpublished, and figures are augmented by stratigraphic nomenclature from more recent work. These stratigraphic sections document representative exposures of Paleoproterozoic to Neoproterozoic strata in the Coal Creek inlier, namely the Wernecke, Fifteenmile, Mount Harper, Hay Creek and 'Upper' groups.
Summary(Plain Language Summary, not published)
Sedimentary rocks >500 million years old in the Ogilvie Mntns north of Dawson are one of the few places on the planet where such undeformed and unmetamorphosed strata are exposed. This publication has classic description of the strata in graphical and text form. It was collected during 1980s¿ regional mapping, but only locations were shown on GSC Open File 2849 and no explanation provided . After 2008 academic geologists used new isotopic dates and geochemistry to resolve the rock units. Their discoveries are published in journals but their field-observations remain in notebooks. This Open File presents archival stratigraphic observations of the Wernecke, Fifteenmile, Mt Harper and Upper groups. Names are updated to modern usage. Bringing this data to light and with a regional context contributes knowledge of the Neoproterozoic strata which is the host of polymetallic deposits as well as a-record of climatic changes and early life forms.