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TitleFormation tops and isopach maps of Cretaceous strata of Mackenzie Plain and parts of Peel Plain, Northwest Territories
AuthorHadlari, T; Midwinter, D; MacLean, B C; Fallas, K M; Dixon, J
SourceGeological Survey of Canada, Open File 7326, 2013, 7 pages (5 sheets),
PublisherNatural Resources Canada
MapsPublication contains 5 maps
Map Info.geological, isopachs
ProjectionLambert Conformal Conic Projection (NAD83)
Mediaon-line; digital
File formatpdf
ProvinceNorthwest Territories
NTS96C; 96D; 96E; 96F
AreaMackenzie Corridor; Mackenzie River; Norman Wells
Lat/Long WENS-128.0000 -124.0000 66.0000 64.0000
Subjectsstratigraphy; bedrock geology; stratigraphic analyses; stratigraphic correlations; sedimentary rocks; isopachs; mudstones; Mahony Lake Formation; Arctic Red Formation; Martin House Formation; Slater River Formation; Little Bear Formation; East Fork Formation; Summit Creek Formation; Trevor Formation; Tukweye Member; Tertiary; Cretaceous
Natural Resources Canada Library - Ottawa (Earth Sciences)
ProgramMackenzie Delta and Corridor, GEM: Geo-mapping for Energy and Minerals
Released2013 11 25
Summary(Plain Language Summary, not published)
The formation tops for Cretaceous strata in the Mackenzie Plain and Peel Plain regions are the result of multi-year analysis of well log, seismic, and outcrop data. The stratigraphic geometries of Cretaceous strata in the study are quite complex due to the interleaving of unconformities. In places the basal unconformity is overlain by Albian strata, in other places it merges with the sub-Slater River Formation unconformity that is overlain by Cenomanian strata, and it even merges with an intra-Little Bear Formation unconformity that is overlain by Campanian strata. Each of the various unconformities has eroded deeper into underlying strata over the Keele Arch, which exerts first-order control of the stratigraphic thickness and consequently the thermal maturity of hydrocarbon source rocks in the area.