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  3. Components of the USGS National Crustal Model
  4. 3D Geologic Framework for use with the U.S. Geological Survey National Crustal Model, Phase 1: Western United States

3D Geologic Framework for use with the U.S. Geological Survey National Crustal Model, Phase 1: Western United States

Dates

Publication Date
Time Period
2019

Citation

Boyd, O.S., 2019, 3D Geologic Framework for use with the U.S. Geological Survey National Crustal Model, Phase 1: Western United States: U.S. Geological Survey data release, https://doi.org/10.5066/P9SBQENM.

Summary

A 3D geologic framework is presented here as part of the U.S. Geological Survey National Crustal Model for the western United States, which will be used to improve seismic hazard assessment. The framework is based on 1:250,000 to 1:1,000,000-scale state geologic maps and depths of multiple subsurface unit boundaries. The geology at or near the Earth’s surface is based on published maps with modifications to remove discontinuities across state borders. Extrapolation of rock type and age in the subsurface is achieved by iterative stripping of units of a given age, nearest neighbor interpolation of the remaining units, and constraints on basement geology. The subsurface depth of the interfaces between units is determined by a range of [...]

Contacts

Point of Contact :
Oliver S Boyd, U.S. Geological Survey, Earthquake Hazards Program
Originator :
Oliver S Boyd
Metadata Contact :
GHSC Data Steward, U.S. Geological Survey, Geologic Hazards Science Center
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Earthquake Hazards Program
USGS Mission Area :
Natural Hazards

Attached Files

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3D_Framework_National_Crustal_Model_Phase1.xml
Original FGDC Metadata
View 		17.63 KB
NCM_SpatialGrid.nc 122.85 MB
NCM_GeologicFrameworkGrids.nc 418.93 MB
NETCDF_README.txt 2.99 KB
NCM_GeologicFrameworkVolume.nc.gz 165.74 MB
NCM_GeologicFramework_VersionHistory.txt 1.57 KB

Purpose

The purpose of this dataset is to provide the 3D geologic (rock type and age) information to link petrologic and mineral physics information to rock densities and seismic velocities.

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  • USGS Data Release Products

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9SBQENM

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