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TitleGeology, Inuvik, Northwest Territories
AuthorCecile, M P; Lane, L S; Dyke, L D; Norris, D K
SourceGeological Survey of Canada, Canadian Geoscience Map 178, 2015, 1 sheet, (Open Access)
PublisherNatural Resources Canada
Maps1 map
Map Info.geological, bedrock and structural geology, 1:50,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 8 (NAD83)
Mediaon-line; digital
RelatedNRCan photo(s) in this publication
File formatreadme
File formatpdf; shp; xml; rtf; xls; JPEG2000
ProvinceNorthwest Territories
AreaInuvik; Campbell Lake; Dolomite Lake; Mackenzie Delta
Lat/Long WENS-134.0000 -133.0000 69.0000 68.2500
Subjectsstratigraphy; structural geology; bedrock geology; sedimentary rocks; marine deposits; sandstones; dolostones; limestones; shales; igneous rocks; dykes; sills; faults; structural features; Smoking Hill Formation; Horton River Formation; Arnica Formation; Franklin Mountain Formation; Mount Kindle Formation; Cenozoic; Quaternary; Mesozoic; Cretaceous; Paleozoic; Devonian; Silurian; Ordovician; Cambrian
ProgramMackenzie Corridor Project Management, GEM2: Geo-mapping for Energy and Minerals
Released2015 06 19
AbstractThe Inuvik map area, NTS 107-B/7 is located in the Northwest Territories on the southeastern edge of the Mackenzie Delta. The western and eastern portions of the map area are underlain by Quaternary fluvial and fluvial fan deposits, and the north central area by hummocky moraine and lacustrine deposits. The south central area is underlain by poorly exposed Cretaceous strata, and fair to poorly exposed Proterozoic and Paleozoic strata. The uplift may be part of an earlier Paleozoic arch. But it presently is part of the Mesozoic Tuk Horst (Wielens, 1992), which centers the Eskimo Lakes Arch. The horst features a complex subcrop of Paleozoic and Proterozoic quartzite, argillite, shale, dolostones and locally volcanics, beneath a pre-Mesozoic unconformity. All strata are openly folded on a scale of tens to hundreds of meters and cut by normal faults. Normal faulting likely has a complex history but is as young as Cretaceous.
Summary(Plain Language Summary, not published)
This geological map of the Inuvik area is paired with the adjacent map of Campbell Lake to provide a modern compilation of the geologically significant Campbell Uplift, comprising sedimentary rocks that are much older than strata in the surrounding areas. These are the first detailed geological maps of the area. They incorporate significant new information that has accumulated in the 30 years since the original reconnaissance maps were published in 1981. This uplift provides important insights into the geological evolution of northwestern Canada over the past 500 million years.