Dataset Identification:
Resource Abstract:
- description: 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.; 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.
Citation
- Title Basement domain map of the conterminous U.S.A. and Alaska.
-
- creation Date
2018-05-20T00:56:39.066727
Resource language:
Processing environment:
Back to top:
Metadata data stamp:
2018-08-06T20:11:26Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T20:11:26Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:3856f172-ea6b-413a-bac1-c532a81fbcb6
Metadata record format is ISO19139 XML (MD_Metadata)