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TitleGeology, Takiyuaqattak, Victoria Island, Northwest Territories
DownloadDownloads
AuthorRainbird, R H; Bédard, J H; Williamson, N
SourceGeological Survey of Canada, Canadian Geoscience Map 104, 2013, 1 sheet, https://doi.org/10.4095/293344
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/04
AreaVictoria Island; Takiyuaqattak; Takiyuaqattak Lake
Lat/Long WENS-116.0000 -115.0000 71.2500 71.0000
Subjectsstratigraphy; structural geology; bedrock geology; sedimentary rocks; marine deposits; sandstones; dolostones; limestones; siltstones; shales; igneous rocks; volcanic rocks; dykes; sills; faults; intrusive rocks; structural features; Franklin Intrusions; Natkusiak Formation; Shaler Supergroup; Kilian Formation; Precambrian; Proterozoic
ProgramPGE/Base Metals - Victoria Island (NWT and Nunavut), GEM: Geo-mapping for Energy and Minerals
Image
Released2013 12 12
AbstractNTS 87-H/4 is underlain by the middle to upper Kilian, Kuujjua and Natkusiak formations of the Neoproterozoic Shaler Supergroup. Together with at least 5 diabase sills (type 2), spaced at regular intervals within the host sedimentary rocks, the strata comprise the gently south-dipping northern limb of the Holman Island Syncline. The northern half of the map area is dominated by a thick sill, which forms a prominent southeast dip slope down to the Kuujjua River. Sedimentary strata are best exposed along a prominent cuesta that faces north-northwest along the south side of the Kuujjua River. The upper two members of the Kilian Formation are sporadically exposed along the base of the cuesta. Crossbedded quartzarenite of the disconformably overlying Kuujjua Formation is prominent along the cuesta's face along with conformably capping basalt flows of the Natkusiak Formation. Both are also well exposed along the flanks of two, north-flowing tributaries of the Kuujjua River. Several steep, northwest-striking, west-side down normal faults are spaced evenly across the map area.
Summary(Plain Language Summary, not published)
NTS 87H/04 is underlain by the upper formations of the Neoproterozoic (approx. 800 to 700 million years old) Shaler Supergroup. Together with tabular diabase intrusions (sills), spaced at regular intervals within the host sedimentary rocks, the strata comprise the gently south-dipping northern limb of a broad fold (Holman Island Syncline). The northern half of the map area is dominated by a thick sill, which forms a prominent SE dip slope down to the Kuujjua River. Sedimentary strata are best exposed along a prominent cuesta that faces NNW along the south side of the Kuujjua River. The upper part of the Kilian Formation, containing limestone and red shale, is sporadically exposed along the base of the cuesta. River-deposited sandstone of the sharply overlying Kuujjua Formation is prominent along the cuesta¿s face along with dark lava flows of the Natkusiak Formation. Rocks also are well exposed along the flanks of two, north-flowing tributaries of the Kuujjua River. Several steep, NW-striking, west-side down, faults are spaced evenly across the map area.
GEOSCAN ID293344