Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unpublished material Title: "CDE-ContouredRedPoleMagColorShadedTopoMap.tif" Geospatial_Data_Presentation_Form: map Description: Abstract: This TIF image represents the contoured reduced-to-pole magnetic anomaly map of the Craig and Dixon Entrance quadrangles, and parts of the Ketchikan and Prince Rupert quadrangles, Alaska. The contoured magnetic data is superimposed on a color-shaded-relief map of the topography. Purpose: Gravity and magnetic data acquisition in southeastern Alaska was undertaken to facilitate the understanding of the subsurface structures and geology of the quadrangles cited, in order to better understand the relationship between these geology and structures and known and potentially discoverable mineral resources in the region. These digital maps can be displayed at any scale or projection, however the geological data in this coverage is not intended for use at a scale larger that 1:250,000. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: UTM coordinates of the corners, Zone 8N: (507144,6226011) (0,0) Label "Pt 1", (765994,6226011) (3056,0) Label "Pt 2", (765994,6003411) (3056,2628) Label "Pt 3", (507144,6003411) (0,2628) Label "Pt 4" Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: reduced-to-pole Theme_Keyword: magnetic Theme_Keyword: grid Theme_Keyword: topography Place: Place_Keyword_Thesaurus: none Place_Keyword: Alaska Place_Keyword: Craig Place_Keyword: Dixon Entrance Place_Keyword: Ketchikan Place_Keyword: Prince Rupert Access_Constraints: None Use_Constraints: This data set is preliminary and has not been reviewed for conformity with U.S. Geological Survey publication standards. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jeff Wynn Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 954 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Country: U.S.A. Contact_Voice_Telephone: 703-648-6490 Contact_Electronic_Mail_Address: jwynn@usgs.gov Data_Set_Credit: Jeff Wynn, Bob Kucks Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Accuracy of the data included in this TIF image was evaluated by visual checks against the original compilation by the same person who generated the Original data grids. Logical_Consistency_Report: Completeness_Report: This data set depicts a magnetic thematic map at a scale of 1:250,000. It includes topographic data. Positional_Accuracy: Horizontal_Positional_Accuracy: 42 meters Horizontal_Positional_Accuracy_Report: This positional accuracy is derived from the grid-generation process of Geosoft Montaj version 4.2 Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Wynn Publication_Date: 1999 Title: Reduced-to-the-Pole Magnetic Anomaly Map of the Craig and Dixon Entrance quadrangles, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 99- Other_Citation_Details: Source_Scale_Denominator: 250000 Type_of_Source_Media: digital data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wynn and others, 1999 Source_Contribution: major Source_Information: Source_Citation: Citation_Information: Title: Reduced-to-the-Pole Magnetic Anomaly map of the Craig and Dixon Entrance quadrangles, southeastern Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 99- Other_Citation_Details: Source_Scale_Denominator: 250000 Type_of_Source_Media: digital data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: unpublished data, USGS Source_Contribution: Process_Step: Process_Description: Digital data was gridded and contoured, then superimposed over a color-shaded-relief topography. Process_Date: 1999 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Mineral Resource Program Contact_Person: Jeff Wynn Contact_Address: Address_Type: mailing and physical address Address: 954 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Country: U.S.A. Contact_Voice_Telephone: 703-648-6490 Contact_Electronic_Mail_Address: jwynn@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 8 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -135.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 0.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: Coordinate_Representation: Abscissa_Resolution: 42 Ordinate_Resolution: 42 Planar_Distance_Units: meters Geodetic_Model: Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.9787 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The gravity contours are labeled; increasing values of topography are redder and decreasing values are bluer. Entity_and_Attribute_Detail_Citation: Wynn and others, 1999 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Jeff Wynn Contact_Organization: U.S. Geological Survey Mineral Resource Program Contact_Address: Address_Type: mailing and physical address Address: 954 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Country: U.S.A. Contact_Voice_Telephone: 703-648-6490 Distribution_Liability: none Metadata_Reference_Information: Metadata_Date: 19980223 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Mineral Resource Program Contact_Person: Jeff Wynn Contact_Address: Address_Type: mailing and physical address Address: 954 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Country: U.S.A. Contact_Voice_Telephone: 703-648-6490 Contact_Electronic_Mail_Address: jwynn@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: June 8, 1994