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TitreDrift prospecting in the Western Canada Sedimentary Basin
AuteurPaulen, R C
SourceGeoCanada 2010 short course GAC026SC - Kimberlites and related rocks in the Western Canadian Sedimentary Basins; 2010, 5 pages
Année2010
Séries alt.Secteur des sciences de la Terre, Contribution externe 20100369
RéunionGeoCanada 2010; Calgary; CA; mai 10 - 14, 2010
Documentlivre
Lang.anglais
Mediapapier
ProvinceAlberta
SNRC73L; 73M; 74D; 74E; 74L; 74M; 83I; 83J; 83K; 83L; 83M; 83N; 83O; 83P; 84
Lat/Long OENS-120.0000 -110.0000 60.0000 54.0000
Sujetsdépôts glaciaires; dépôts glaciaires; géochimie des dépôts glaciaires; exploration de dépôts glaciaires; gîtes minéralogiques; kimberlites; diamant; directions des mouvements de la glace; géologie des dépôts meubles/géomorphologie; géologie économique; Cénozoïque; Quaternaire
Illustrationslocation maps; photographs; rose diagrams
ProgrammeBases de données couvrant les trois territoires (minéraux indicateurs), GEM : La géocartographie de l'énergie et des minéraux
Résumé(disponible en anglais seulement)
Effective and efficient diamond exploration in glaciated terrain calls for a thorough knowledge of the glacial geology of the area concerned. Drift prospecting relies on the identification of dispersal trains in glacial drift (cf. DiLabio and Coker 1989; Kujansuu and Saarnisto 1990; Bobrowsky et al. 1995; McClenaghan et al. 2001; Paulen and McMartin 2009). Kimberlite exploration in the Western Canada Sedimentary Basin is hampered by a highly variable overburden thickness, paucity of outcrop and a complex glacial and deglacial history, with more than one Pleistocene glacial event affecting most of western Canada. Glacial ice has played the principal role in the transportation of indicator minerals. As a general rule, tills containing these trains occur in thin deposits, less than 5 m thick, generally deposited in a straight-line trajectory derived from local bedrock, or in thick deposits, tens of metres thick, with a complex history of
reworking.
GEOSCAN ID287418