Identification_Information: Citation: Citation_Information: Originator: Harrison, J.C. Originator: Thorsteinsson, R. Originator: de Freitas, T.A. Publication_Date: 2009 Title: Strathcona Fiord area Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: A Series Issue_Identification: 2141 Publication_Information: Publication_Place: Ottawa, Ontario Publisher: Geological Survey of Canada, Natural Resources Canada Other_Citation_Details: Recommended citation: Harrison, J.C., Thorsteinsson, R., and de Freitas, T.A. 2009: Phanerozoic bedrock geology, Strathcona Fiord area, Ellesmere Island, Nunavut; Geological Survey of Canada, Map 2141A, scale 1:125 000. Online_Linkage: Description: Abstract: The Phanerozoic bedrock geology of Strathcona Fiord map area (NTS 49E) features unmetamorphosed sedimentary rocks of Lower Cambrian to Upper Devonian and Triassic to Eocene ages exposed within 1) the central Ellesmere Fold Belt, 2) overlying Sverdrup Basin, 3) a regional synclinorium (Schei Syncline) which can be traced from central Ellesmere Island to Grinnell Peninsula on western Devon Island, and in the east 4) a narrow, intensely faulted portion of the Arctic Platform. The Paleozoic succession thickens westward from a feather edge, where the Lower Cambrian lies nonconformably on Paleoproterozic granulites of the Inglefield Mobile belt (1.98 to 1.75 Ga), to a thickness exceeding 9 km under the centre of the map. Prominent depositional features include shelf to basin facies changes involving ten formations of Upper Ordovician to Lower Devonian ages, biostromal carbonates of Silurian age containing migrated hydrocarbons, important unconformities in Pragian and Emsian strata that provide a late Caledonian uplift history for south eastern Ellesmere Island, and Middle to Upper Devonian foreland clastic formations that are the depositional record of the Ellesmerian Orogeny. The Schei Syncline and Central Ellesmere Fold Belt are Devonian-Early Carboniferous tectonic features produced during the Ellesmerian deformation. Subsequent planation has formed a regional angular unconformity with Lower Triassic to Middle Eocene strata deposited above this surface and preserved now in numerous widely scattered fault-bounded outliers. The Triassic to Cretaceous succession, up to 1500 m thick in the northwest, represents the eastern margin of the Sverdrup Basin. In addition, rift-related redbeds of the Canyon Fiord Formation and overlying Permian sandstones are likely present in the northwestern subsurface. The Eureka Sound Group (Maastrichtian to middle Eocene) is preserved mostly east of the Sverdrup Basin and attains a thickness of about 4000 m in the north central Strathcona Fiord area. These sediments are the depositional response to phases of compressive and strike-slip deformation during the Eurekan Orogeny, also related to more distant events including sea floor spreading in Baffin Bay and the plate motions of Greenland. Commercially significant coal resources are exposed in Eocene strata between Strathcona and Bay fiords. Purpose: Supplemental_Information: Data set is in English. Magnetic declination stated in degrees and minutes. Annual change stated in minutes. Magnetic declination at NW corner of map: 61°38'W, changing 91.1'E annually. Magnetic declination at SW corner of map: 57°28'W, changing 85.1'E annually. Magnetic declination at NE corner of map: 61°29'W, changing 82.6'E annually. Magnetic declination at SE corner of map: 57°53'W, changing 77.9'E annually. Magnetic declination at center of map: 59°45'W, changing 84.3'E annually. Proximity of the North Magnetic Pole causes the compass to be useless in this area. Number of base data sets used: 1 Base data set 1: Source is NTDB, ID is 49E, version 3.1, 2001, scale 1:250000 Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Range_of_Dates/Times: Beginning_Date: 1989 Ending_Date: 2006 Currentness_Reference: Field work years are 1989 and 1993. Compilation years are 2006. Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -84.000 East_Bounding_Coordinate: -80.000 North_Bounding_Coordinate: 79.000 South_Bounding_Coordinate: 78.000 Data_Set_G-Polygon: Data_Set_G-Polygon_Outer_G-Ring: G-Ring_Point: G-Ring_Latitude: 79.0000 G-Ring_Longitude: -81.2243 G-Ring_Point: G-Ring_Latitude: 79.0000 G-Ring_Longitude: -80.0000 G-Ring_Point: G-Ring_Latitude: 78.0000 G-Ring_Longitude: -80.0000 G-Ring_Point: G-Ring_Latitude: 78.0000 G-Ring_Longitude: -81.8299 G-Ring_Point: G-Ring_Latitude: 78.0000 G-Ring_Longitude: -84.0000 G-Ring_Point: G-Ring_Latitude: 78.8969 G-Ring_Longitude: -84.0000 G-Ring_Point: G-Ring_Latitude: 79.0000 G-Ring_Longitude: -84.0000 G-Ring_Point: G-Ring_Latitude: 79.0000 G-Ring_Longitude: -81.2243 Keywords: Theme: Theme_Keyword: geoscientificInformation Theme_Keyword: Geological and geophysical Theme_Keyword: Phanerozoic bedrock geology Theme_Keyword_Thesaurus: None Place: Place_Keyword: Nunavut Place_Keyword: Huff Ridge Place_Keyword: Kahkotchea River Place_Keyword: Cape Ingrid Place_Keyword: Marie Island Place_Keyword: Cape Pillsbury Place_Keyword: Mount Bell Place_Keyword: Taggart River Place_Keyword: Svendsen Peninsula Place_Keyword: Braskeruds Plain Place_Keyword: Fosheim Peninsula Place_Keyword: Yates Lake Place_Keyword: Nodvedt Lake Place_Keyword: Vendom Fiord Place_Keyword: Taggart Lake Place_Keyword: Augusta Bay Place_Keyword: Irene Bay Place_Keyword: Bay Fiord Place_Keyword: Strathcona Fiord Place_Keyword: Prince of Wales Icefield Place_Keyword: Stygge Glacier Place_Keyword: Trinity Glacier Place_Keyword: Wykeham Glacier Place_Keyword: Ellesmere Island Place_Keyword_Thesaurus: None Access_Constraints: None Use_Constraints: Her Majesty the Queen in Right of Canada 2009 For more information, please contact the Copyright Officer at the following address: ESS Copyright Officer Business Development Office Earth Sciences Sector 615 Booth St., Ottawa, Ontario K1A 0E9 Sa Majesté la Reine du chef du Canada 2009 Pour plus d'information, prière de communiquer avec le responsable du droit d'auteur à l'adresse suivante : Responsable du droit d'auteur du SST Bureau d'expansion des affaires Secteur des sciences de la Terre 615, rue Booth Ottawa (Ontario) K1A 0E9 Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Harrison, C.J. Contact_Organization: Natural Resources Canada Contact_Address: Address_Type: Physical Address: 3303-33 Street North West City: Calgary State_or_Province: Alberta Postal_Code: T2L 2A7 Country: Canada Contact_Voice_Telephone: 403-292-7137 Contact_Facsimile_Telephone: 403-292-4961 Contact_Electronic_Mail_Address: CHarriso@NRCan.gc.ca Data_Set_Credit: Affiliated with Polar Continental Shelf Project. Digital cartography by Coulthart, M.J. 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