Identification_Information: Citation: Citation_Information: Originator: Hodgson, D.A. Publication_Date: 2003 Title: White Strait Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: A Series Issue_Identification: 2048 Publication_Information: Publication_Place: Ottawa, Ontario Publisher: Geological Survey of Canada, Natural Resources Canada Other_Citation_Details: Recommended citation: Hodgson, D.A. 2003: Surficial geology, White Strait, Baffin Island, Nunavut; Geological Survey of Canada, Map 2048A, scale 1:100 000. Online_Linkage: Description: Abstract: This surficial materials map is one of seven describing central and western Meta Incognita Peninsula as well as the head of Frobisher Bay, at the southeast extremity of Baffin Island. The communities of Iqaluit and Kimmirut lie within these seven maps. Weathered to unaltered rock is the most extensive surficial material; it is divided on the basis of decreasing susceptibility to weathering into five units. Mappable till covers a minority of the map area; elsewhere, pockets of thin till overlie bedrock. The single till unit is clast supported with an acidic silty sand matrix, though a silty matrix-supported till is discontinuously present on the southeast coast. Clasts are boulder and cobble Shield rocks of local origin. Thickest till is in the Frobisher Bay Moraine System (FBM) which is composed of multiple end moraine ridges on the flanks of Frobisher Bay (linear on the north side, where ice pushed upslope, convoluted on the south side in ridges and valleys) and a thick till belt farther west (looping down the regional slope). The area southeast of Markham Bay also has a thick till cover. Subglacial and proglacial aqueous deposits and landforms are prominent locally. The most common are sand and gravel subaerial glaciofluvial deposits concentrated in the FBM adjacent to Frobisher Bay; farther west, valley trains follow preglacial valleys to Hudson Strait. Raised glaciomarine deposits in the form of proglacial deltas are present where FBM intersects coasts (Frobisher and Markham bays) and where valley trains terminate. Thick, silty marine deposits are patchy around Frobisher Bay; on the southeast Hudson Strait coast calcareous silty till indicates source ice was in the strait. There is no terrestrial record of glaciers predating the last (Late Wisconsin) glaciation other than cirques. Striations, rock and till drumlins and till lineations indicate last glacial ice flowing from local, Foxe Ice Dome, down-Hudson Strait and cross-strait sources. The dominant flow was generally southeast across Baffin Island from the Foxe Ice Dome and this was also responsible for the late glacial readvance into the head of Frobisher Bay (to FBM). 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: 32°25'W, changing 23.5'E annually. Magnetic declination at SW corner of map: 31°44'W, changing 22.5'E annually. Magnetic declination at NE corner of map: 32°51'W, changing 23.5'E annually. Magnetic declination at SE corner of map: 32°11'W, changing 22.6'E annually. Magnetic declination at center of map: 32°19'W, changing 23'E annually. Number of base data sets used: 1 Base data set 1: Source is NTDB, ID is 25 L, version NA, NA, scale 1:250000 Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Range_of_Dates/Times: Beginning_Date: 1995 Ending_Date: 2002 Currentness_Reference: Field work years are 1995-1997 1999. Compilation years are 1997-2002. Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -71.250 East_Bounding_Coordinate: -70.000 North_Bounding_Coordinate: 63.000 South_Bounding_Coordinate: 62.500 Data_Set_G-Polygon: Data_Set_G-Polygon_Outer_G-Ring: G-Ring_Point: G-Ring_Latitude: 63.0000 G-Ring_Longitude: -70.5681 G-Ring_Point: G-Ring_Latitude: 63.0000 G-Ring_Longitude: -70.0000 G-Ring_Point: G-Ring_Latitude: 62.5544 G-Ring_Longitude: -70.0000 G-Ring_Point: G-Ring_Latitude: 62.5000 G-Ring_Longitude: -70.0000 G-Ring_Point: G-Ring_Latitude: 62.5000 G-Ring_Longitude: -71.2500 G-Ring_Point: G-Ring_Latitude: 63.0000 G-Ring_Longitude: -71.2500 G-Ring_Point: G-Ring_Latitude: 63.0000 G-Ring_Longitude: -70.5681 Keywords: Theme: Theme_Keyword: geoscientificInformation Theme_Keyword: Geological and geophysical Theme_Keyword: Surficial geology Theme_Keyword_Thesaurus: None Place: Place_Keyword: White Strait Place_Keyword: Hudson Strait Place_Keyword: Big Island Place_Keyword: Baffin Island Place_Keyword: Nunavut Place_Keyword_Thesaurus: None Access_Constraints: None Use_Constraints: Her Majesty the Queen in Right of Canada 2003 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 2003 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: D.A. Hodgson 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: 613-992-0645 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: dhodgson@nrcan.gc.ca Data_Set_Credit: Digital cartography by Everett, E. Data_Quality_Information: Lineage: Source_Information: Source_Scale_Denominator: 100000 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: 19 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -69.0 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: 10.0 Ordinate_Resolution: 10.0 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.9786982139058207616105371232 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: 20031017 Metadata_Future_Review_Date: 20081017 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