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TitleUpdating the stratigraphic and structural understanding of Mackenzie Corridor, Northwest Territories
AuthorFallas, K M; MacNaugton, R B; Lemiski, R; Hadlari, T
Source38th annual Yellowknife Geoscience Forum, asbstracts of talks and posters; by Palmer, E; Northwest Territories Geoscience Office, Yellowknife Geoscience Forum Abstracts Volume 2010, 2010 p. 15
Alt SeriesEarth Sciences Sector, Contribution Series 20100243
Meeting38th annual Yellowknife Geoscience Forum; Yellowknife, NWT; CA; November 16-18, 2010
File formatpdf
ProvinceNorthwest Territories
NTS107B; 107C
AreaMackenzie Corridor; Mackenzie Delta
Lat/Long WENS-136.0000 -132.0000 70.0000 68.0000
Subjectsstratigraphy; structural geology; structural features; bedrock geology; faulting; Precambrian; Proterozoic; Cambrian; Paleozoic
ProgramMackenzie Delta and Corridor, GEM: Geo-mapping for Energy and Minerals
LinksOnline - En ligne
AbstractField studies contributing to the Mackenzie Delta and Corridor Project, part of the Geo-mapping for Energy and Minerals (GEM) Program of the Geological Survey of Canada (GSC), includes bedrock mapping and stratigraphic studies in the Mackenzie Corridor. Field activities are being conducted by GSC Calgary staff with colleagues from the Northwest Territories Geoscience Office (NTGO), Laurentian University, and the University of Calgary. The study area, encompassing Norman Wells and Tulita, includes those parts of the Franklin Mountains, Mackenzie Plain and eastern Mackenzie Mountains in NTS map areas 96C, 96D, 96E, and 96F.
The 2009 and 2010 GSC mapping seasons saw significant progress in recognition of key structural and stratigraphic relationships. Mapping documented Proterozoic to Cambrian extensional structures, overprinted by folding and contractional faulting in the Cretaceous. This has implications for understanding the lateral continuity and complications of structural culminations with respect to trap development.
The presence of several unconformities within the stratigraphic succession complicates map compilation. Map units have been locally misidentified at the Proterozoic - Cambrian boundary, impeding understanding of the distribution of Cambrian source rocks and reservoir facies. Mapping of unconformities clarifies deposition vs. erosion cycles on paleotopographic features, such as Keele Arch, and their effect on thermal maturity of source rocks.