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TitleGeology, Qiqittiivik, Victoria Island, Northwest Territories
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AuthorRainbird, R H; Bédard, J H; Dewing, K; Hadlari, T; Thomson, D
SourceGeological Survey of Canada, Canadian Geoscience Map 59, 2013, 1 sheet, https://doi.org/10.4095/293259
Year2013
PublisherNatural Resources Canada
Editionprelim.
Documentserial
Lang.English
Maps1 map
Map Info.geological, bedrock and structural geology, 1:50,000
ProjectionUniversal Transverse Mercator Projection, zone 11 (NAD83)
Mediaon-line; digital
File formatreadme
File formatpdf; shp; xml; rtf; xls; JPEG2000
ProvinceNorthwest Territories
NTS87H/05
AreaVictoria Island; Qiqittiivik; Minto Inlet
Lat/Long WENS-116.0000 -115.0000 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; Victoria Island Formation; Franklin Intrusions; Shaler Supergroup; Kilian Formation; Wynniatt Formation; Minto Inlet Formation; Paleozoic; Cambrian; Ordovician; Precambrian; Proterozoic
Viewing
Location
 
Natural Resources Canada Library - Ottawa (Earth Sciences)
 
ProgramPGE/Base Metals - Victoria Island (NWT and Nunavut), GEM: Geo-mapping for Energy and Minerals
Image
Released2013 12 05
AbstractNTS 87-H/5 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 best exposures of the Wynniatt Formation (bedded-carbonate and shale) in the western Minto Inlier are located here. The lower half of the Kilian Formation (carbonate+evaporite) is intermittently exposed in the southern part of the sheet. Diabase sills are of diabasic type 2 (see legend). A dyke-like mafic intrusion occurs in the southwest part of the map area. The northern half of the area is affected by east-west block faulting, which preserves Cambrian sandstone and siltstone and a thick section of recrystallized Ordovician(?) dolostone (Victoria Island Formation). An unconformity between the Wynniatt Formation and the Cambrian lower clastic unit reveals extensive paleokarst with paleo-caverns infilled with quartzarenite. The quartzarenite exhibits soft-sediment deformation, water-escape cylinders and other collapse features.
Summary(Plain Language Summary, not published)
NTS 87H/05 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 best exposures of the Wynniatt Formation in the western Minto Inlier are located here. The lower half of the Kilian Formation is intermittently exposed in the southern part of the sheet. A dyke-like mafic intrusion occurs in the southwest part of the map area. 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). An unconformity between the Wynniatt Formation and the Cambrian lower clastic unit reveals extensive paleo-caverns infilled with sandstone. The quartzarenite exhibits soft-sediment deformation and other collapse features.
GEOSCAN ID293259