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TitleIce-flow history and drift prospecting in the Committee Bay belt, central Nunavut: results from the Targeted Geoscience Initiative
AuthorMcMartin, I; Little, E C; Ferbey, T; Ozyer, C A; Utting, D J
SourceGeological Survey of Canada, Current Research (Online) no. 2003-C4, 2003, 11 pages, (Open Access)
LinksCanadian Database of Geochemical Surveys, downloadable files
LinksBanque de données de levés géochimiques du Canada, fichiers téléchargeables
PublisherNatural Resources Canada
Mediaon-line; digital; CD-ROM
RelatedThis publication is contained in the following publications
RelatedThis publication is related to Spirito, W A; McClenaghan, M B; Plouffe, A; McMartin, I; Campbell, J E; Paulen, R C; Garrett, R G; Hall, G E M; (2011). Till sampling and analytical protocols for GEM Projects: from field to archive, Geological Survey of Canada, Open File 6850
File formatpdf
NTS56J/09; 56J/10; 56J/11; 56J/12; 56J/13; 56J/14; 56J/15; 56J/16; 56K; 56O/01; 56O/02; 56O/03; 56O/04; 56O/05; 56O/06; 56O/07; 56O/08; 56P
AreaCommittee Bay
Lat/Long WENS -94.0000 -88.0000 68.0000 66.0000
Subjectssurficial geology/geomorphology; economic geology; geochemistry; till analyses; tills; till deposits; till samples; drift prospecting; ice movement directions; ice flow; glacial history; till geochemistry; gold; mineralization; trace element geochemistry; major element geochemistry; Committee Bay belt; Quaternary
Illustrationssketch maps; tables
ProgramTargeted Geoscience Initiative (TGI-1), 2000-2003
Released2003 03 14
AbstractMapping of ice-flow indicators in the Committee Bay supracrustal belt (NTS 56 K, 56 J/9 to /16, 56-O/1 to /8, and 56 P) provides new evidence for a complicated ice-movement chronology during the Late Wisconsinan. Three main phases of ice movement have been identified at the regional scale. The oldest is northerly and is found throughout most of the area. This was followed early in the deglaciation
sequence by northeastward flow in the eastern part of the area and northwesterly flow in the western part. Finally, there is a north-northwesterly flow south of the Chantrey moraines, associated with ice flow from the Keewatin Ice Divide. Results from drift-prospecting studies indicate that till geochemistry reflects a clear northerly direction of glacial transport. Most of the known gold showings are recognized in the gold-grain counts and/or the gold values in the till matrix, but at least two previously unknown, potentially
gold-rich domains have been identified.