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.
Title: Basement domain map of the conterminous U.S.A. and Alaska
Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polygon)
Series_Name: Data Series
Publication_Place: Denver, CO
Publisher: U.S. Geological Survey
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.
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.
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.
Currentness_Reference: publication date
Maintenance_and_Update_Frequency: None planned
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: continental lithosphere
Theme_Keyword: earth history
Theme_Keyword: geologic structure
Theme_Keyword: geospatial datasets
Theme_Keyword: magnetic field (earth)
Theme_Keyword: metallic mineral resources
Theme_Keyword: mineral deposits
Theme_Keyword_Thesaurus: American Geological Institute (AGI) Glossary of Geology
Theme_Keyword: Basement domain
Theme_Keyword: Continental crust
Theme_Keyword: Metals endowment
Theme_Keyword: Mineral belt
Theme_Keyword: Mineral resource assessment
Theme_Keyword: Tectonic setting
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
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.
Contact_Person: Lund, Karen
Contact_Position: Research Geologist
Contact_Organization: U.S. Geological Survey
Address_Type: mailing and physical address
Contact_Voice_Telephone: (303) 236-5600
Contact_Facsimile_Telephone: (303) 236-3200
Address: Box 25046
Address: Denver Federal Center
Address: Mail Stop 973
Spatial data supporting the Basement tectonic framework of the U.S. Project were developed by the U.S. Geological Survey Mineral Resources Program (MRP).
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)