| Title | The sedimentary rocks of Devon island, canadian arctic archipelago |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Thorsteinsson, R; Mayr, U |
| Source | Geological Survey of Canada, Memoir 411, 1987, 182 pages (9 sheets), https://doi.org/10.4095/122451  Open Access |
| Year | 1987 |
| Publisher | Canada Department of Mines |
| Document | serial |
| Lang. | English |
| Maps | Publication contains 5 maps |
| Map Info. | geological, structural, 1:250,000 |
| Map Info. | geological, cross sections |
| Media | paper; on-line; digital |
| Related | This publication contains Geology, Maxwell Bay and Resolute,
District of Franklin, Northwest Territories |
| Related | This publication contains Geology, Powell Inlet, District of
Franklin, Northwest Territories |
| Related | This publication contains Geology, Dundas Harbour, District
of Franklin, Northwest Territories |
| Related | This publication contains Geology, Bear Bay West and
Baillie-Hamilton Island, District of Franklin, Northwest Territories |
| Related | This publication contains Geology, Bear Bay East and Lady
Ann Strait, District of Franklin, Northwest Territories |
| File format | pdf |
| Province | Nunavut |
| NTS | 38F/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 |
| Area | Devon Island; Arctic Archipelago |
| Lat/Long WENS | -93.0000 -79.0000 76.0000 74.5000 |
| Subjects | sedimentology; 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 |
| Released | 1987 04 01; 2016 02 02 |
| Abstract | The 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. |
| GEOSCAN ID | 122451 |
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