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TitleThe sedimentology and stratigraphy of the Husky Formation in the subsurface, District of Mackenzie, N.W.T.
AuthorBraman, D R; Geological Survey of Canada
SourceGeological Survey of Canada, Paper 83-14, 1985, 29 pages (1 sheet),
PublisherGeological Survey of Canada
Mediapaper; on-line; digital
File formatpdf
ProvinceNorthwest Territories
NTS107B; 107C
AreaMackenzie Delta; Tuktoyaktuk Peninsula
Lat/Long WENS-136.0000 -132.0000 70.0000 68.0000
Subjectssedimentology; stratigraphy; bedrock geology; shales; sandstones; systematic stratigraphy; clay mineralogy; biostratigraphy; sedimentary petrology; depositional environment; marine environments; lithofacies mapping; diagenesis; porosity; Husky Formation; Phanerozoic; Mesozoic
Illustrationslocation maps; correlation sections; gamma ray logs; photomicrographs
Released1985 05 01; 2016 09 12
AbstractThe Husky Formation is a shale unit with minor sandstone interbeds, and subcrops in the Mackenzie Delta and Tuktoyaktuk Peninsula areas. The fine grained sediments generally occur in coarsening-upward cycles. Within these cycles, three lithofacies are identified: a weakly bioturbated shale facies, a strongly bioturbated mixed shale-sandstone fades, and a weakly bioturbated sandstone fades. The three lithofacies probably represent a mud interbar or shoal fades, a bar or shoal margin fades, and a bar or shoal fades respectively. The environment of deposition was a shallow, siliciclastic, marine shelf, which had a northeast-southwest trend and which deepened to the north or northwest. The fine grained sandstone fades has a complex diagenetic history that includes cementing by silica overgrowths, etching of grains, partial filling of pore space with carbonate cement, and precipitation of a number of clay types as grain coatings and pore fillings between grain boundaries. Porosity is very poor and the reservoir potential of the sandstones is considered to be low.