Identification_Information: Citation: Citation_Information: Originator: Kerr, D.E. Originator: Rampton, V.N. Originator: Thomas, R.D. Publication_Date: 2005 Title: Hepburn Island Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: A Series Issue_Identification: 2094 Publication_Information: Publication_Place: Ottawa, Ontario Publisher: Geological Survey of Canada, Natural Resources Canada Other_Citation_Details: Recommended citation: Kerr, D.E., Rampton, V.N., and Thomas, R.D. 2005: Surficial geology, Hepburn Island, Nunavut; Geological Survey of Canada, Map 2094A, scale 1:125 000. Online_Linkage: Description: Abstract: Ongoing mineral exploration and development in the central and north Slave geological province have resulted in the need for a wide range of geoscience baseline data. The Geological Survey of Canada initiated regional surficial mapping through the Slave Province National Mapping Program (NATMAP) to provide data of surficial materials, ice-flow history and till geochemistry. The Hepburn Island, (NTS 76 M) map is the result of two field mapping projects: 1986 by Kerr, and 1992 by Rampton and Thomas, with limited investigations in 1995 by Kerr and Dredge. This involved helicopter-assisted ground work including terrain mapping, till sampling, pebble-provenance studies, and measurement of ice-flow indicators. Till samples (4-6 kg) were collected from hand-dug pits at 199 sites for trace-element geochemistry; pebbles (2-6 cm diameter) were collected from the till sample pits to assess glacial transport distances and ice-flow patterns. Surficial geology was interpreted and plotted on 1:60 000 scale airphotos and recompiled at 1:125 000 on a topographic base. This map supersedes the previous surficial geology maps of this area (Kerr, 1992; Rampton and Thomas, 1993). Open File 2668 (Thomas et al. 1993) presents the results of regional till geochemistry, and Dredge and Kerr (1999) compiled regional pebble lithology data. The regional glacial geology was first presented by Craig (1960) and Blake (1963), whereas certain glacial features within parts of the map area have been noted by Bruneau (1984), Easton et al. (1982), and Jackson et al. (1986). 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: 23°38'E, changing 35.5'W annually. Magnetic declination at SW corner of map: 23°1'E, changing 32.4'W annually. Magnetic declination at NE corner of map: 21°31'E, changing 34.8'W annually. Magnetic declination at SE corner of map: 21°7'E, changing 31.7'W annually. Magnetic declination at center of map: 22°21'E, changing 33.6'W annually. Proximity of the North Magnetic Pole causes the compass to be erratic in this area. Number of base data sets used: 1 Base data set 1: Source is NTDB, ID is 76M, 2001, scale 1:250000 Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2003 Range_of_Dates/Times: Beginning_Date: 1986 Ending_Date: 2003 Currentness_Reference: Field work years are 1986, 1992, 1995. Compilation years are 2003. Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -112.000 East_Bounding_Coordinate: -110.000 North_Bounding_Coordinate: 68.000 South_Bounding_Coordinate: 67.000 Data_Set_G-Polygon: Data_Set_G-Polygon_Outer_G-Ring: G-Ring_Point: G-Ring_Latitude: 67.8657 G-Ring_Longitude: -110.0000 G-Ring_Point: G-Ring_Latitude: 67.0000 G-Ring_Longitude: -110.0000 G-Ring_Point: G-Ring_Latitude: 67.0000 G-Ring_Longitude: -112.0000 G-Ring_Point: G-Ring_Latitude: 67.3387 G-Ring_Longitude: -112.0000 G-Ring_Point: G-Ring_Latitude: 68.0000 G-Ring_Longitude: -112.0000 G-Ring_Point: G-Ring_Latitude: 68.0000 G-Ring_Longitude: -110.0000 G-Ring_Point: G-Ring_Latitude: 67.8657 G-Ring_Longitude: -110.0000 Keywords: Theme: Theme_Keyword: geoscientificInformation Theme_Keyword: Geological and geophysical Theme_Keyword: Surficial geology Theme_Keyword_Thesaurus: None Place: Place_Keyword: Anialik River Place_Keyword: Tree River Place_Keyword: Hepburn Island Place_Keyword: Inman Harbour Place_Keyword: Grays Bay Place_Keyword: Coronation Gulf Place_Keyword: Port Epworth Place_Keyword: Wentzel River Place_Keyword: High Lake Place_Keyword: Low Lake Place_Keyword: James River Place_Keyword: Nunavut Place_Keyword_Thesaurus: None Access_Constraints: None Use_Constraints: Her Majesty the Queen in Right of Canada 2005 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 2005 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: Daniel Kerr Contact_Organization: Natural Resources Canada Contact_Address: Address_Type: Physical Address: 601 Booth Street City: Ottawa State_or_Province: Ontario Postal_Code: K1A 0E8 Country: Canada Contact_Voice_Telephone: 613-995-4523 Contact_Facsimile_Telephone: 613-992-0190 Contact_Electronic_Mail_Address: dkerr@NRCan.gc.ca Data_Set_Credit: Additional geology by Dredge, L.A. Affiliated with Polar Continental Shelf Project. Digital cartography by Coulthart, M.J. Data_Quality_Information: Lineage: Source_Information: Source_Scale_Denominator: 125000 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 12 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -111.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 30.000 Ordinate_Resolution: 30.000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.25722209603690666513255949227 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Mike Sigouin Contact_Organization: Natural Resources Canada Contact_Address: Address_Type: Physical Address: 601 Booth Street City: Ottawa State_or_Province: Ontario Postal_Code: K1A 0E8 Country: Canada Contact_Voice_Telephone: 613-943-0738 Contact_Facsimile_Telephone: 613-952-7308 Contact_Electronic_Mail_Address: msigouin@NRCan.gc.ca Resource_Description: Live Data and Maps Standard_Order_Process: Fees: None Metadata_Reference_Information: Metadata_Date: 20050921 Metadata_Future_Review_Date: 20100921 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Paul Huppé Contact_Organization: Natural Resources Canada Contact_Address: Address_Type: Physical Address: 601 Booth Street City: Ottawa State_or_Province: Ontario Postal_Code: K1A 0E8 Postal_Code: K1A 0E8 Country: Canada Contact_Voice_Telephone: 613-943-0996 Contact_Facsimile_Telephone: 613-995-2339 Contact_Electronic_Mail_Address: huppe@NRCan.gc.ca Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998