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TitleKimberlite indicator mineral survey and ice flow studies in Boothia mainland (NTS 57A, 57B, 57C and 57D), Kitikmeot region, Nunavut
AuthorTremblay, T; Ryan, J J; James, D T; Kjarsgaard, I M
SourceGeological Survey of Canada, Open File 6040, 2009, 31 pages; 1 CD-ROM,
Documentopen file
MediaCD-ROM; on-line; digital
RelatedThis publication is related to Tremblay, T; Ryan, J J; James, D T; (2007). Ice-flow studies in Boothia mainland (NTS 57A and 57B), Kitikmeot region, Nunavut, Geological Survey of Canada, Open File 5554
File formatreadme
File formatpdf; xls
NTS57A; 57B; 57C; 57D
AreaBoothia mainland; Kitikmeot; Pelly Bay; Rasmussen Basin; Gulf of Boothia
Lat/Long WENS-96.0000 -88.0000 70.0000 68.0000
Subjectssurficial geology/geomorphology; economic geology; sedimentology; glaciation; glacial history; ice flow; ice movement directions; ice transport directions; dispersal patterns; palimpsest sediments; glacial features; glacial landforms; glacial striations; glacial deposits; erratics trains; drumlins; crag and tail; eskers; moraines; moraine, de geer; glaciomarine deposits; deltas; tills; petrographic analyses; source areas; source rocks; bedrock geology; lithology; quartzites; marbles; mineral exploration; kimberlites; drift prospecting; Churchill Province; Rae Domain; Rasmussen Lowlands; Simpson Lowlands; Pelly Bay Lowlands; Pelly Bay Uplands; Central Plateau; Northern Chantrey Group; Southern Chantrey Group; Barclay belt; Keewatin Ice Divide; McClintock Ice Divide; Foxe Ice Divide; Phanerozoic; Cenozoic; Quaternary; Precambrian; Proterozoic
Illustrationslocation maps; digital elevation models; photographs; tables; plots
Canada-Nunavut Geoscience Office
Natural Resources Canada Library - Ottawa (Earth Sciences)
Natural Resources Canada library - Vancouver (Earth Sciences)
Natural Resources Canada library - Calgary (Earth Sciences)
Natural Resources Canada library - Québec (Earth Sciences)
Geological Survey of Canada (Atlantic)
ProgramNorthern Resources Development Program
ProgramCanada-Nunavut Geoscience Office, Funding Program
LinksCanadian Database of Geochemical Surveys, downloadable files
LinksBanque de données de levés géochimiques du Canada, fichiers téléchargeables
Released2009 11 10
AbstractGlacial history studies and analysis of heavy mineral separates from glacial sediments (till and eskers) were undertaken in theBoothia mainland area of central Nunavut. Mapping of surficial macroforms and glacial striae has shown a complex, four phase ice-flow history. From oldest to youngest, the ice-flow history entails: Phase 1 to the north, Phase 2 to the northeast, Phase3 to the east, and Phase 4 to the north. Late-stage, localized ice-flows were determined in some areas, especially around the Harrison Uplands. All of the regional ice-flow phases impacted on the final distribution of glacial erratics in till, but with varied influence, wherein Phase 2 to the NE and Phase 4 to the N in the southern part of Boothia mainland were the most significant glacial dispersal events. During Phase 2, glacial transport distances of greater than 100 km were determined for Paleozoic carbonates and Paleoproterozoic members of the Chantrey Group siliciclastic (pelites, orthoquartzites), and at least 20 km for the Paleoproterozoic marble member of the Chantrey Group. Kimberlite indicator minerals (including mantle ilmenite, forsterite, Cr-diopside, eclogitic and peridotitic (G9) garnets, chromite, perovskite and lyndsleyite) and visual gold grains were found in glacial sediments. Prospective zones for kimberlites or gold mineralization are outlined herein from heavy mineral analysis and knowledge of the ice-flow history.