Identification_Information: Citation: Citation_Information: Originator: Plouffe, A. Originator: Levson, V.M. Originator: Mate, D.J. Publication_Date: 2004 Title: Nechako River Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: A Series Issue_Identification: 2067 Publication_Information: Publication_Place: Ottawa, Ontario Publisher: Geological Survey of Canada, Natural Resources Canada Other_Citation_Details: Recommended citation: Plouffe, A., Levson, V.M., and Mate, D.J. 2004: Surficial geology, Nechako River, British Columbia; Geological Survey of Canada, Map 2067A, compilation at 1:250 000 scale, 1 CD-ROM. Online_Linkage: Description: Abstract: Abstract 2067A Nechako River The surficial geology of the Nechako River map area (NTS 93F) depicts the distribution of unconsolidated glacial and nonglacial sediments and landforms. This A-series map was compiled, modified and generalized from previously published open files produced by the Geological Survey of Canada and the British Columbia Geological Survey. The map shows a variety of units of glacial and non-glacial origin. From oldest to youngest, the units on the map include bedrock and till and, glaciofluvial, glaciolacustrine, colluvial, alluvial, organic, and anthropogenic deposits. Till is the most areally extensive surficial deposit in the map area. It consists of a poorly sorted sediment directly deposited by glaciers, containing boulder- to pebble-sized clasts in a matrix of sand, silt, and clay. Glaciofluvial deposits generally consist of sand and gravel which can represent aggregate resources, but their quality for such usage depends on the sediment sorting and the induration of the clast lithologies. Glaciolacustrine deposits are composed of well sorted fine sand, silt, and clay. These sediments were deposited in former glacial lakes that developed at the end of the last glaciation when the drainage was blocked by decaying ice masses. Colluvial deposits represent sediments reworked by mass-wasting processes in steep terrain. Alluvial deposits (sediments of modern streams) are present along all streams in the region but only in the larger ones are such deposits extensive enough to be mapped. Organic deposits accumulate in poorly drained depressions in sediments and bedrock. They are particularly abundant in regions underlain by impermeable till, in valleys with underfit streams, and within low-gradient meltwater channels. Anthropogenic deposits, consisting of sediments reworked by human activities, were only mapped at the Kenney Dam site. A variety of glacial and non-glacial landforms are represented on the map. They provide and indication of the glacial and non-glacial history of the region. More details on the surficial geology and ice-flow history of the region is provided as marginal notes on the map. 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: 21°31'E, changing 12.3'W annually. Magnetic declination at SW corner of map: 21°2'E, changing 11.5'W annually. Magnetic declination at NE corner of map: 21°11'E, changing 12.3'W annually. Magnetic declination at SE corner of map: 20°42'E, changing 11.5'W annually. Magnetic declination at center of map: 21°7'E, changing 11.9'W annually. Number of base data sets used: 1 Base data set 1: Source is NTDB, ID is 93 F, 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: 1996 Ending_Date: 2002 Currentness_Reference: Field work years are 1996, 1997, 1998. Compilation years are 2002. Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -126.000 East_Bounding_Coordinate: -124.000 North_Bounding_Coordinate: 54.000 South_Bounding_Coordinate: 53.000 Data_Set_G-Polygon: Data_Set_G-Polygon_Outer_G-Ring: G-Ring_Point: G-Ring_Latitude: 54.0000 G-Ring_Longitude: -124.2638 G-Ring_Point: G-Ring_Latitude: 54.0000 G-Ring_Longitude: -124.0000 G-Ring_Point: G-Ring_Latitude: 53.0000 G-Ring_Longitude: -124.0000 G-Ring_Point: G-Ring_Latitude: 53.0000 G-Ring_Longitude: -126.0000 G-Ring_Point: G-Ring_Latitude: 53.0796 G-Ring_Longitude: -126.0000 G-Ring_Point: G-Ring_Latitude: 54.0000 G-Ring_Longitude: -126.0000 G-Ring_Point: G-Ring_Latitude: 54.0000 G-Ring_Longitude: -124.2638 Keywords: Theme: Theme_Keyword: geoscientificInformation Theme_Keyword: Geological and geophysical Theme_Keyword: Surficial geology Theme_Keyword_Thesaurus: None Place: Place_Keyword: British Columbia Place_Keyword: Nechako Plateau Place_Keyword: François Lake Place_Keyword: Kenney Dam Place_Keyword: Skins Lake Place_Keyword: Nechako Reservoir Place_Keyword: Natalkuz Lake Place_Keyword: Ootsa Lake Place_Keyword: Nechako River Place_Keyword_Thesaurus: None Access_Constraints: None Use_Constraints: Her Majesty the Queen in Right of Canada 2004 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 2004 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: Alain Plouffe Contact_Organization: Geological Survey of Canada, Natural Resources Canada Contact_Address: Address_Type: Physical Address: 601 Booth Street City: Ottawa State_or_Province: Ontario Postal_Code: K1A 0E9 Country: Canada Contact_Voice_Telephone: 613-995-4390 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: aplouffe@nrcan.gc.ca Data_Set_Credit: Affiliated with Nechako NATMAP Project. Digital cartography by Côté, N. Data_Quality_Information: Lineage: Source_Information: Source_Scale_Denominator: 250000 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: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123.0 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: 74.56 Ordinate_Resolution: 74.56 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: 20040930 Metadata_Future_Review_Date: 20090930 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 0E9 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