Identification_Information: Citation: Citation_Information: Originator: Paul K. Sims Originator: Richard W. Saltus Originator: Eric D. Anderson Publication_Date: 2008 Publication_Time: Unknown Title: Precambrian basement structural map of the continental United States- an interpretation of geologic and aeromagnetic data Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Scientific Investigation Map Issue_Identification: SIM 3012 Publication_Information: Publication_Place: Denver Federal Center Publisher: US Geological Survey Online_Linkage: http://pubs.usgs.gov/sim/3012/ Description: Abstract: This report presents a map of principal basement structures formed during the Precambrian in continental United States based largely on interpretation of regional aeromagnetic anomaly data of North America, published in 2002. Purpose: The objective of the report is to provide a map of the basement tectonic framework, useful for interpretation of Phanerozoic tectonic evolution and mineral resources. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: unknown Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -133.665867 East_Bounding_Coordinate: -62.214972 North_Bounding_Coordinate: 53.204074 South_Bounding_Coordinate: 21.867969 Keywords: Theme: Theme_Keyword_Thesaurus: American Geological Institute Glossary of Geology Theme_Keyword: aeromagnetic data Theme_Keyword: ductile shear zones Theme_Keyword: Precambrian Place: Place_Keyword_Thesaurus: U.S. Board of Geographic Names (BGN) Geographic Place_Keyword: United States Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Eric Anderson Contact_Organization: US Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: Denver Federal Center Address: PO Box 25046, MS 964 City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-5652 Contact_Facsimile_Telephone: 303-236-1425 Contact_Electronic_Mail_Address: ericanderson@usgs.gov Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.1.1332 Data_Quality_Information: Logical_Consistency_Report: These data were downloaded from USGS Open File Report 02-0414;(ftp://ftpext.usgs.gov/pub/cr/co/denver/musette/pub/open-file-reports/ofr-02-0414/) Completeness_Report: Map data in this report should not be used at scales greater than 1:50,000,000. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Paul K. Sims Originator: Richard W. Saltus Originator: Eric D. Anderson Publication_Date: 2007 Title: Precambrian basement structure map of the continental United States-an interpretation of geologic and aeromagnetic data Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: unknown Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Sims et al., 2004 Source_Contribution: GIS database Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 2140 Column_Count: 3549 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Transverse Mercator Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.926000 Longitude_of_Central_Meridian: -100.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 0.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 1393.331111 Ordinate_Resolution: 1393.331111 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_User_Defined Ellipsoid_Name: User_Defined_Spheroid Semi-major_Axis: 6371204.000000 Denominator_of_Flattening_Ratio: 0.0174 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: US Geological Survey Contact_Address: Address_Type: mailing address Address: Publishing Service Center 15 Address: MS 902 Box 25046 Address: Denver Federal Center City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Resource_Description: Downloadable Data Distribution_Liability: This database, identified as SIM-3012, has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Metadata_Reference_Information: Metadata_Date: 20070423 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Eric Anderson Contact_Organization: US Geological Surve Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: Denver Federal Center Address: PO Box 25046, MS 964 City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-5652 Contact_Facsimile_Telephone: 303-236-1425 Contact_Electronic_Mail_Address: ericanderson@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile