Basement domain map of the conterminous U.S.A. and Alaska

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Lund, K.
Originator: Box, S.E.
Originator: Holm-Denoma, C.S.
Originator: San Juan, C.A.
Originator: Blakely, R.J.
Originator: Saltus, R.W.
Originator: Anderson, E.D.
Originator: DeWitt, E.H.
Publication_Date: 2014
Title: Basement domain map of the conterminous U.S.A. and Alaska
Edition: 1.0
Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polygon)
Series_Information:
Series_Name: Data Series
Issue_Identification: DS-898
Publication_Information:
Publication_Place: Denver, CO
Publisher: U.S. Geological Survey
Online_Linkage: http://dx.doi.org/10.3133/ds898
Online_Linkage: https://mrdata.usgs.gov/ds-898/
Description:
Abstract:
The basement-domain map is a compilation of basement domains in the conterminous United States and Alaska designed to be used at 1:5,000,000-scale, particularly as a base layer for national-scale mineral resource assessments. Seventy-seven basement domains are represented as eighty-three polygons on the map. The domains are based on interpretations of basement composition, origin, and architecture and developed from a variety of sources. Analysis of previously published basement, lithotectonic, and terrane maps as well as models of planetary development were used to formulate the concept of basement and the methodology of defining domains that spanned the ages of Archean to the present but formed through different processes. The preliminary compilations for the study areas utilized these maps, national-scale gravity and aeromagnetic data, published and limited new age and isotopic data, limited new field investigations, and conventional geologic maps. Citation of the relevant source data for compilations and the source and types of original interpretation, as derived from different types of data, are provided in supporting descriptive text and tables.

The tectonic settings for crustal types represented in the basement domains are subdivided into constituent geologic environments and the types of primary metals endowments and deposits in them are documented. The compositions, architecture, and original metals endowments are potentially important to assessments of primary mineral deposits and to the residence and recycling of metals in the crust of the United States portion of the North American continent. The databases can be configured to demonstrate the construction of the United States through time, to identify specific types of crust, or to identify domains potentially containing metal endowments of specific genetic types or endowed with specific metals. The databases can also be configured to illustrate other purposes chosen by users.
Purpose:
This map of basement domains of the conterminous U.S. and Alaska is intended for use as a base layer for national-scale mineral resource assessments. The compositions, architecture, and original metals endowments are potentially important to assessments of primary mineral deposits and to the residence and recycling of metals in the crust of the U.S. parts of the North American continent. The database can be used to demonstrate the construction of the U.S. through time, to identify specific types of crust, and to identify domains potentially containing metal endowments of specific genetic types or endowed with specific metals.
Supplemental_Information:
Datasets in this geospatial database include "Bsmnt_CONUS_AK", the polygon feature class of basement domains, and "tbl2_Environs_Deposits", tabular data for additional geologic and deposit information. The tabular data can be joined to the polygon features using the field “Crust_Type”. The “Reference” field in both layers lists abbreviated citations; complete bibliographic citations are provided in the accompanying report, as well as a general overview of the work performed by study area.

Please note: attribute field names are truncated to 10-characters in the “shapefile” version of the geodatabase.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2014
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -169.175856663
East_Bounding_Coordinate: -53.8303861254
North_Bounding_Coordinate: 71.3708469789
South_Bounding_Coordinate: 24.1423634468
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data
Theme_Keyword: KML
Theme_Keyword: shapefile
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: continental lithosphere
Theme_Keyword: earth history
Theme_Keyword: geologic structure
Theme_Keyword: geology
Theme_Keyword: geophysics
Theme_Keyword: geospatial datasets
Theme_Keyword: magnetic field (earth)
Theme_Keyword: metallic mineral resources
Theme_Keyword: mineral deposits
Theme:
Theme_Keyword_Thesaurus: American Geological Institute (AGI) Glossary of Geology
Theme_Keyword: Basement domain
Theme_Keyword: Continental crust
Theme_Keyword: Craton
Theme_Keyword: Lithotectonic
Theme_Keyword: Metals endowment
Theme_Keyword: Mineral belt
Theme_Keyword: Mineral resource assessment
Theme_Keyword: National-scale
Theme_Keyword: Tectonic setting
Theme_Keyword: Terrane
Place:
Place_Keyword_Thesaurus: Common geographic areas
Place_Keyword: fUS01 = Alabama
Place_Keyword: fUS02 = Alaska
Place_Keyword: fUS04 = Arizona
Place_Keyword: fUS05 = Arkansas
Place_Keyword: fUS06 = California
Place_Keyword: fUS08 = Colorado
Place_Keyword: fUS09 = Connecticut
Place_Keyword: fUS10 = Delaware
Place_Keyword: fUS12 = Florida
Place_Keyword: fUS13 = Georgia
Place_Keyword: fUS16 = Idaho
Place_Keyword: fUS17 = Illinois
Place_Keyword: fUS18 = Indiana
Place_Keyword: fUS19 = Iowa
Place_Keyword: fUS20 = Kansas
Place_Keyword: fUS21 = Kentucky
Place_Keyword: fUS22 = Louisiana
Place_Keyword: fUS23 = Maine
Place_Keyword: fUS24 = Maryland
Place_Keyword: fUS25 = Massachusetts
Place_Keyword: fUS26 = Michigan
Place_Keyword: fUS27 = Minnesota
Place_Keyword: fUS28 = Mississippi
Place_Keyword: fUS29 = Missouri
Place_Keyword: fUS30 = Montana
Place_Keyword: fUS31 = Nebraska
Place_Keyword: fUS32 = Nevada
Place_Keyword: fUS33 = New Hampshire
Place_Keyword: fUS34 = New Jersey
Place_Keyword: fUS35 = New Mexico
Place_Keyword: fUS36 = New York
Place_Keyword: fUS37 = North Carolina
Place_Keyword: fUS38 = North Dakota
Place_Keyword: fUS39 = Ohio
Place_Keyword: fUS40 = Oklahoma
Place_Keyword: fUS41 = Oregon
Place_Keyword: fUS42 = Pennsylvania
Place_Keyword: fUS44 = Rhode Island
Place_Keyword: fUS45 = South Carolina
Place_Keyword: fUS46 = South Dakota
Place_Keyword: fUS47 = Tennessee
Place_Keyword: fUS48 = Texas
Place_Keyword: fUS49 = Utah
Place_Keyword: fUS50 = Vermont
Place_Keyword: fUS51 = Virginia
Place_Keyword: fUS53 = Washington
Place_Keyword: fUS54 = West Virginia
Place_Keyword: fUS55 = Wisconsin
Place_Keyword: fUS56 = Wyoming
Access_Constraints: None
Use_Constraints:
These data are intended for use at 1:5,000,000 scale. Data have been checked to ensure the accuracy. If any errors are detected, please notify the originating office. The U.S. Geological Survey strongly recommends that careful attention be paid to the metadata file associated with these data. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcGIS format, this metadata file may include some ArcGIS-specific terminology.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Lund, Karen
Contact_Organization: U.S. Geological Survey
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Box 25046
Address: Denver Federal Center
Address: Mail Stop 973
City: Lakewood
State_or_Province: CO
Postal_Code: 80401
Country: USA
Contact_Voice_Telephone: (303) 236-5600
Contact_Facsimile_Telephone: (303) 236-3200
Contact_Electronic_Mail_Address: klund@usgs.gov
Data_Set_Credit:
Spatial data supporting the Basement tectonic framework of the U.S. Project were developed by the U.S. Geological Survey Mineral Resources Program (MRP).
Native_Data_Set_Environment:
Environment as of Metadata Creation: Microsoft [Unknown] Version 6.2 (Build 9200) ; Esri ArcGIS 10.2.2 (Build 3552) Service Pack N/A (Build N/A)
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The accuracy of attribute values varies by field. Values within descriptive fields represent new terminology developed by the report authors (for example, Crust_Type), or are modified from published geologic maps and reports (for example, Crust_Formation_Age) and therefore dependent on the accuracy of the source.
Logical_Consistency_Report:
Polygons in this dataset were checked for topological consistency (polygonal gaps and overlaps were corrected). Attribute fields containing dates were visually inspected for logical consistency (e.g. the age of crustal formation was greater than the age of crustal accretion).
Completeness_Report: Dataset coverage includes the continental U.S. and Alaska.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The positional accuracy of basement domain boundaries is dependent on the source, scale, and accuracy of the base materials. In general, positional accuracy is approximate, highly variable, and not accurate at scales larger than 1:5,000,000.
Lineage:
Process_Step:
Process_Description:
Polygons in this dataset represent interpretations of basement composition, origin, and architecture developed from a broad variety of sources. Analysis of previously published basement, lithotectonic, and terrane maps as well as models of planetary development were used to formulate the concept of basement and the methodology of defining domains that spanned the ages of Archean to Present but formed through different processes. The preliminary compilations for the study areas utilized these maps, national-scale gravity and aeromagnetic data, published and limited new age and isotopic data, limited new field investigations, and conventional geologic maps. Citations for sources of data used to construct the polygons are provided in attribute tables and the accompanying report.
Process_Date: 2013
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 82
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0197137099
Longitude_Resolution: 0.0291450447
Geographic_Coordinate_Units: Decimal seconds
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: basement
Entity_Type_Definition:
Table containing attribute information associated with the data set.
Entity_Type_Definition_Source: Producer defined
Attribute:
Attribute_Label: region
Attribute_Definition: Names assigned to regions studied in project
Attribute_Definition_Source: Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Generally recognized geographic regions in the U.S.A. used to designate areas for study of basement characteristics. Designation of areas based both on available data and characteristics of underlying basement.
Attribute:
Attribute_Label: domain
Attribute_Definition: Name of basement domain
Attribute_Definition_Source: Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Unique name for each identified basement domain.
Attribute:
Attribute_Label: alternate
Attribute_Definition: Alternate name for basement domain
Attribute_Definition_Source: Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Alternate name used for an identified basement domain in some published sources.
Attribute:
Attribute_Label: crust_type
Attribute_Definition:
Tectonic setting and type of the crust that formed the basement domain
Attribute_Definition_Source: Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Generally accepted tectonic settings are identified as responsible for the types of crust. Descriptions for tectonic settings and types of crust are presented in text.
Attribute:
Attribute_Label: crust_age
Attribute_Definition:
Age of formation of crust that formed the basement domain in millions of years (Ma) or billions of years (Ga).
Attribute_Definition_Source: Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Ages are presented for domains where specific dates represent formation events. Age ranges are presented where dating demonstrates a span of formation events. Geologic ages are presented where the time of formation is more generalized.
Attribute:
Attribute_Label: accr_type
Attribute_Definition: Tectonic setting and style of growth of continental basement
Attribute_Definition_Source: Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Descriptions for the geometry and style of accretion for individual basement domains onto previously formed or amalgamated basement are presented in text.
Attribute:
Attribute_Label: accr_age
Attribute_Definition:
Age of addition of new basement to previously formed continental basement in millions of years (Ma) or billions of years (Ga).
Attribute_Definition_Source: Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Ages are presented for crustal growth where single dates represent specific events. Age ranges are presented where dating demonstrates a span of crustal growth events. Geologic ages are presented where the time of crustal growth is more generalized.
Attribute:
Attribute_Label: reflinks
Attribute_Definition: Abbreviated references to supporting published information
Attribute_Definition_Source: Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Abbreviated citation of reference material used to support interpretion of basement domains. Full citations are provided in the accompanying report.
Attribute:
Attribute_Label: notes
Attribute_Definition:
Ages are presented for crustal growth where single dates represent specific events. Age ranges are presented where dating demonstrates a span of crustal growth events. Geologic ages are presented where the time of crustal growth is more generalized.
Attribute_Definition_Source: Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Information presented on relations between domains, questions about unknown aspects of basement origin or development, and vergence of structures.
Overview_Description:
Entity_and_Attribute_Overview:
The tabular data can be joined to the polygon features using the field “Crust_Type”.
Entity_and_Attribute_Detail_Citation:
Datasets in this geospatial database include "Bsmnt_CONUS_AK", the polygon feature class of basement domains, and "tbl2_Environs_Deposits", tabular data for additional geologic and deposit information. Attributes for the polygon feature class “Bsmnt_CONUS_AK” are described under the “Attribute” section of this metadata. The tabular data "tbl2_Environs_Deposits” contains the following attribute fields: Crust_Type: Tectonic setting for the type of crust in each basement domain. Generally accepted tectonic settings are identified as the origin for each type of crust. Descriptions for tectonic settings and types of crust are presented in text. Geologic_Environments: Geologic environment represented in each identified tectonic setting. Generally accepted geologic environments that form in the tectonic settings that formed basement in each domain. Descriptions for geologic environments are presented in text. Primary_Metals_Deposits: Metal enrichments that may form in an identified geologic environment. Types of metals accumulations that form in specific geologic environments during original construction of crust and that may have resulted in enrichments of suites of metals or in ore deposits of specific types. Descriptions of the settings and genesis of original metal accumulations in each geologic environment are presented in text. References: Abbreviated citations; complete bibliographic citations are provided in the accompanying report.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: USGS Information Services
Contact_Address:
Address_Type: mailing address
Address: Box 25286, DFC
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 1-888-ASK-USGS
Contact_Electronic_Mail_Address: ask@usgs.gov
Distribution_Liability:
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. This database, identified as DS 898, has been approved for release and publication by the U.S. Geological Survey (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 U.S. Government may be held liable for any damages resulting from its authorized or unauthorized use. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Format_Version_Number: 1.0
Format_Information_Content:
Basement domains with basic attributes and a link to the full report for each domain
File_Decompression_Technique: Unzip
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Digital_Form:
Digital_Transfer_Information:
Format_Name: KML
Format_Version_Number: 2.2
Format_Information_Content:
Basement domains with basic attributes and a link to the full report for each domain
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Digital_Form:
Digital_Transfer_Information:
Format_Name: WMS
Format_Version_Number: 1.3.0
Format_Information_Content: Basement domains
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Digital_Form:
Digital_Transfer_Information:
Format_Name: WFS
Format_Version_Number: 1.1.0
Format_Information_Content: Basement domains
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Digital_Form:
Digital_Transfer_Information:
Format_Name: File geodatabase
Format_Version_Number: 10.1
Format_Information_Content: Basement domains with short references
File_Decompression_Technique: Unzip
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20161207
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Carma San Juan
Contact_Organization: U.S. Geological Survey
Contact_Position: Physical Scientist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, DFC
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-236-2450
Contact_Facsimile_Telephone: (303) 236-3200
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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