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TitlePhanerozoic geology, northwestern Victoria Island, Northwest Territories
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorDewing, KORCID logo; Hadlari, TORCID logo; Rainbird, R HORCID logo; Bédard, J H
SourceGeological Survey of Canada, Canadian Geoscience Map 171, 2015, 1 sheet, Open Access logo Open Access
PublisherNatural Resources Canada
Maps1 map
Map Info.geological, bedrock and structural geology, 1:500,000
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
NTS87G; 87H; 88A; 88B
AreaVictoria Island; Minto Inlet; Prince of Wales Strait; Kangiryuaqtihuk; Ikirahak
Lat/Long WENS-120.0000 -112.0000 73.0000 71.0000
Subjectsstratigraphy; structural geology; bedrock geology; sedimentary rocks; marine deposits; sandstones; limestones; shales; mudstones; faults; structural features; Kitson Formation; Barlow Inlet Formation; Blue Fiord Formation; Thumb Mountain Formation; Allen Bay Formation; Cape Storm Formation; Duoro Formation; Victoria Island Formation; Mount Phayre Formation; Uvayualuk Formation; Quyuk Formation; Shaler Supergroup; Paleozoic; Devonian; Silurian; Ordovician; Cambrian; Proterozoic; Precambrian
ProgramGEM: Geo-mapping for Energy and Minerals Sverdrup Sedimentary Basin
Released2015 03 05
AbstractVictoria Island is in the western Canadian Arctic Islands, Northwest Territories, Canada (parts of NTS 87-G, 87-H, 88-A and 88-B). The bedrock consists of Cambrian to Devonian sedimentary rocks (sandstone, limestone and dolostone) that unconformably overlie Neoproterozoic rocks. Eight map units are recognized and mapped. Strata are generally flat lying or have a very gentle northwest dip. Numerous ENE-WSW oriented normal faults offset lower Paleozoic strata and locally increase the dip. At least some of these faults were active in the Early Cambrian and again in the Middle Cambrian. The faults cut a Devonian unit indicating fault movement after that time. An anomalous circular structure in the northeastern part of the map area, approximately 25 km in diameter, contains steep dips, faulting and numerous shatter cones. It is interpreted as the root of a meteorite impact crater.
Summary(Plain Language Summary, not published)
This map shows the distribution of rocks on northwestern Victoria Island, Northwest Territories. The rocks are between about 520 million years old and 390 million years old. They consist of sedimentary rocks including sandstone, shale, limestone and dolostone. Eight formations are recognized and mapped. Strata are generally flat lying or have a very gentle northwest dip. Numerous faults cut the rocks. The 25 km diameter Tunnunik meteorite crater is exposed in the north-central part of the map area.

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