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Geochronology and bulk sediment geochemistry of the Late Cretaceous maar lake sedimentary fill of the Wombat kimberlite pipe, subarctic Canada
DownloadSpring 2020
The Wombat pipe (64.918° N, 110.447° W) is a diamondiferous kimberlite in the Lac de Gras kimberlite field of Northwest Territories, Canada. Two drill cores, CH93-29 and 00-05, intersect the Wombat crater facies and include 195 m of well preserved, undisturbed lake sediment fill. Bulk sediment...
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Fall 2021
Reconnaissance regional mapping as part of the Geological Survey of Canada’s Geomapping for Energy and Minerals (GEM-2) project documented three voluminous, massive to weakly foliated felsic plutons in Boothia Peninsula, Nunavut. Uranium-lead zircon and monazite geochronology reveals this...
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Rhenium-osmium systematics and major and trace element chemistry of cobaltite (CoAsS): Evidence for Late Mesoproterozoic sediment-hosted Co-Cu sulfide mineralization with Grenvillian and Cretaceous remobilization in the Idaho Cobalt Belt, Belt-Purcell Basin, USA
Download2019-01-07
NJ Saintilan, RA Creaser, AA Bookstrom
We report the first study of the Re-Os systematics of cobaltite (CoAsS) using disseminated andmassively mineralized samples from two breccia-type and two stratabound deposits from the Co-Cu-Au Idaho Cobalt Belt, Lehmi Sub-basin to the Belt-Purcell Basin, Idaho, USA. Using a 185Re+190Os spike...