Field data and till composition in the GEM-2 Rae Glacial Synthesis Activity field areas, Nunavut and Northwest Territories / J.E. Campbell, I. McMartin, M.W. McCurdy, P.-M. Godbout, T. Tremblay, and P.X....: M183-2/8808E-PDF

"This report releases the field datasets and analytical results from targeted surficial geology studies and till sampling completed in 2017 and 2018 in mainland Nunavut and eastern Northwest Territories as part of Natural Resources Canada's Geomapping for Energy and Minerals (GEM‐2) Rae Synthesis of Glacial History and Dynamics Activity in the interior of the Keewatin Sector of the Laurentide Ice Sheet. Fieldwork consisted of targeted mapping of glacial flow indicators to resolve the relative ice-flow chronology, sampling material for geochronology to help reconstruct the glacial and post-glacial histories at a regional scale, and documenting the nature and composition of the glacial sediments in various glacial terrains. In addition to the field and analytical datasets, this report provides a detailed description of the field and analytical methods. In 2017, Quaternary geological field observations were made at 92 sites; 39 till and 16 geochronology samples were collected in 5 areas in the Baker Lake and Arviat regions, Nunavut. In 2018, the focus shifted to the Healey Lake area in eastern Northwest Territories and central mainland Kitikmeot region, Nunavut. Quaternary geological field observations were made at 72 sites; 44 till and 17 geochronology samples were collected. Till samples were analysed for matrix geochemistry and texture, gold grain counts, indicator mineral picking and probing, and pebble lithology counts"--Abstract, page 1.

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