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TitleGeology, Qinnguk, Victoria Island, Northwest Territories
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorRainbird, R HORCID logo; Bédard, J H; Thomson, D
SourceGeological Survey of Canada, Canadian Geoscience Map 176, 2014, 1 sheet, Open Access logo Open Access
PublisherNatural Resources Canada
Maps1 map
Map Info.geological, bedrock and structural geology, 1:50,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 11 (NAD83)
Mediaon-line; digital
RelatedNRCan photo(s) in this publication
File formatreadme
File formatpdf; shp; xml; rtf; xls; JPEG2000
ProvinceNorthwest Territories
AreaVictoria Island; Qinnguk
Lat/Long WENS-115.0000 -114.0000 71.5000 71.2500
Subjectsstratigraphy; structural geology; bedrock geology; sedimentary rocks; marine deposits; sandstones; dolostones; limestones; shales; igneous rocks; dykes; sills; faults; intrusive rocks; structural features; Franklin Intrusions; Natkusiak Formation; Shaler Supergroup; Kuujjua Formation; Kilian Formation; Wynniatt Formation; Cenozoic; Quaternary; Paleozoic; Cambrian; Precambrian; Proterozoic
ProgramGEM: Geo-mapping for Energy and Minerals PGE/Base Metals - Victoria Island (NWT and Nunavut)
Released2014 10 06
AbstractNTS 87-H/6 is underlain by the middle to upper Wynniatt, Kilian, Kuujjua and Natkusiak formations of the Neoproterozoic Shaler Supergroup. The Wynniatt Formation is confined to the north-west and the Kilian Formation is intermittently exposed in the central and southern parts of the map area. The upper Kilian, Kuujjua and basal Natkusiak formations are exposed on prominent hills in the southeast. Up to 5, type 2 (diabasic), sills outcrop as stepped cuestas that strike northeast across the centre of the map area. Two, northwest-striking dykes cut across the upper Wynniatt Formation strata in the north. Several steep normal faults occur in the southern third and western side of the map area. Those cutting the Natkusiak Formation do not cut underlying strata, suggesting that faulting was syn-volcanic. West-southwest block faulting, common in map areas to the north, is evident around Tahiryuak, where it repeats strata of the upper Wynniatt Formation (unit n{W4).
Summary(Plain Language Summary, not published)
NTS 87H/06 is underlain by the upper Minto Inlet, Wynniatt and lower Kilian formations of the Shaler Supergroup. Together with diabase sills, the strata comprise the gently south-dipping northern limb of the Holman Island Syncline. The upper part of the Wynniatt Formation is well exposed along cuestas in the northern half of the map area. The lower half of the Kilian Formation is intermittently exposed in the southern part of the sheet. The northern half of the area is affected by E-W block faulting, which preserves Cambrian sandstone and siltstone and a thick section of recrystallized Ordovician(?) dolostone (Victoria Island Formation).

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