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TitleUpper Ramparts River (106G) and Sans Sault Rapids (106H) map Areas, District of Mackenzie
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorAitken, J D; Cook, D G; Yorath, C J
SourceGeological Survey of Canada, Memoir 388, 1982, 48 pages, Open Access logo Open Access
MapsPublication contains 3 maps
Map Info.geological, 1:250,000
Map Info.geological, 1:500,000
Mediapaper; on-line; digital
RelatedThis publication contains the following publications
File formatpdf
ProvinceNorthwest Territories
NTS96D; 106G; 96E; 96L/01; 96L/02; 96L/03; 106H; 96L/04; 96L/05; 96L/06; 96L/07; 96L/08; 106A; 106B/09; 106B/10; 106B/13; 106B/14; 106B/15; 106B/16; 106I/01; 106I/02; 106I/03; 106I/04; 106I/05; 106I/06; 106I/07; 106I/08; 106J/01; 106J/02; 106J/03; 106J/04; 106J/05; 106J/06; 106J/07; 106J/08
AreaRamparts River; Sans Sault Rapids
Lat/Long WENS-132.0000 -126.0000 66.5000 64.0000
Subjectsstratigraphy; structural geology; lithology; folds; faults
Illustrationsphotographs; cross-sections, structural; stratigraphic charts
Released1982 04 01; 2013 10 22
AbstractThe region encompassed by Upper Ramparts River and Sans Sault Rapids map areas contains 20 647 km 2 and includes parts of Mackenzie Mountains, Peel Plateau, Peel Plain. Mackenzie Plain, and Franklin Mountains. The cumulative stratigraphic column of the region exceeds 8840 m in thickness, although this total is not known to have accumulated at any single point. The country is subdivided into two distinct regions on the basis of stratigraphy. The first of these. and the one represented by all of Sans Sault Rapids and most of Upper Ramparts River map areas, behaved as a stable platform from Helikian through Devonian time; Hadrynian and Lower Cambrian rocks are almost entirely missing, and Paleozoic strata are mainly carbonates. The second region, occupying only the southwest corner of Upper Ramparts, is Selwyn Basin. where a thick Hadrynian and Lower Cambrian succession is present and the lower and middle Paleozoic carbonates of the platform change facies to shale. No sedimentary record of late Paleozoic through Jurassic time is preserved. A thick and mostly marine Cretaceous succession is present northeast of the Mackenzie Mountains. Cenozoic strata were not observed. The obvious structures of the region. west-northwesterly trending. large-scale folds and subordinate contractional faults are. broadly. Laramide in age. The structural style is governed by the presence of kinematically related detachments at three different stratigraphic levels. Mackenzie Mountains and the crestal regions of Franklin Mountains uplifts are judged to be devoid of hydrocarbon potential. The remainder of the two map areas is considered to have moderate potential for oil or gas production from stratigraphic traps. The Paleozoic and older sedimentary successions of Mackenzie Mountains show promise for production of zinc, lead and copper.

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