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TitleThe sedimentary rocks of Devon island, canadian arctic archipelago
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorThorsteinsson, R; Mayr, U
SourceGeological Survey of Canada, Memoir 411, 1987, 182 pages (9 sheets), Open Access logo Open Access
PublisherCanada Department of Mines
MapsPublication contains 5 maps
Map Info.geological, structural, 1:250,000
Map Info.geological, cross sections
Mediapaper; on-line; digital
RelatedThis publication contains Geology, Maxwell Bay and Resolute, District of Franklin, Northwest Territories
RelatedThis publication contains Geology, Powell Inlet, District of Franklin, Northwest Territories
RelatedThis publication contains Geology, Dundas Harbour, District of Franklin, Northwest Territories
RelatedThis publication contains Geology, Bear Bay West and Baillie-Hamilton Island, District of Franklin, Northwest Territories
RelatedThis publication contains Geology, Bear Bay East and Lady Ann Strait, District of Franklin, Northwest Territories
File formatpdf
NTS38F/13; 48G; 48E/09; 48E/10; 48E/11; 48E/12; 48E/13; 48E/14; 48E/15; 48E/16; 48F/09; 48F/10; 48F/11; 48F/12; 48F/13; 48F/14; 48F/15; 48F/16; 48H/04; 48H/05; 48H/12; 48H/13; 58H; 58G/01; 58G/08; 58G/09; 58G/16; 58E/09; 58E/10; 58E/11; 58E/12; 58E/13; 58E/14; 58E/15; 58E/16
AreaDevon Island; Arctic Archipelago
Lat/Long WENS-93.0000 -79.0000 76.0000 74.5000
Subjectssedimentology; paleontology; stratigraphy; structural geology; igneous and metamorphic petrology; surficial geology/geomorphology; mineralogy; lacustrine deposits; glaciation; deglaciation; glacial deposits; archean; igneous rocks; lithology; sedimentary rocks; pleistocene; depositional environment; carbonates; fossils; grabens; structural features; structural analyses; faults; stratigraphic correlations; meteorite craters; unconformities; dolostones; limestones; shales; sandstones; metamorphic rocks; metamorphic facies; granulite facies; sedimentary structures; petrographic analyses; thin section microscopy; palynomorphs; palynology; faunas; astroblemes; hydrocarbons; oil; gas; evaporites; Ostracoda; Foraminifera; Radiolaria; Dinoflagellates; Stromatolites; Cephalopods; Gastropods; Corals; Brachiopods; Conodonts; Trilobites; Pytchopariida; Graptolites; Arctic Platform; Quaternary; Cenozoic; Precambrian; Proterozoic; Paleozoic; Cambrian; Ordovician; Silurian; Devonian; Cretaceous; Tertiary; Mesozoic
Released1987 04 01; 2016 02 02
AbstractThe present study deals mainly with the stratigraphy, structural geology and environment of deposition of the strata of the Arctic Platform, comprising mainly a structurally concordant succession of lower Paleozoic strata in the western three quarters of the island. The Paleozoic strata comprise, for the most part, a westerly dipping homocline. The greater part of the sedimentary column, in terms of age span and volume of sediments, is made up of Lower Cambrian to Lower Devonian strata. However, strata of Proterozoic, Mesozoic and Cenozoic ages are represented also. The column is divisible into three structurally conformable successions that are separated from one another by regional unconformities, and a fourth succession that includes two unnamed formations in the Haughton impact crater: 1. The Proterozoic is represer1ted by a single formation consisting mainly of sandstone and siltstone. Outcrops are limited to a small area on the south coast where the formation lies nonconformably on Precambrian crystalline rocks, and is overlain unconformably by Cambrian strata. 2. The Paleozoic sediments consist mainly of shelf-type carbonate strata. They are divisible into fifteen formations with a total exposed thickness of about 3700 m. Most formations maintain relatively uniform charac1 eristics throughout the report area. However, the three youngest formations, which outcrop in extreme western parts of the island, exhibit noteworthy facies relationships, with two shelf-type carbonate formations in southern parts of the island giving place laterally to graptolitic rocks in the north. Unconformities occur within the Paleozoic succession: between Lower and Middle Cambrian rocks; and probably between rocks of Late Ordovician and Early Silurian ages. 3. Three easily weathered formations are preserved in a series of grabens developed in the Paleozoic terrane of western Devon Island. They are: 1. the Hassel Formation, nonmarine sandstone, Albian to Cenomanian; 2. the Kanguk Formation, marine shale, Turonian to Campanian; 3. the Eureka Sound Formation, mainly neomarine sandstone, Maastrichtian. 4. The older of two formatior1s within the limits of the Haughton crater consists of impact breccia. The younger consists of lake sediments. Devon Island is cut by numerous, steeply-dipping, normal faults. Key words: Stratigraphy, structurC!l geology, environment of deposition, Phanerozoic rocks, Devon Island, Arctic Canada.

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