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Gridded gravity, magnetic, and pseudogravity data of the Sierra Nevada, California and Nevada

Metadata Updated: October 29, 2025

This data release presents gridded data associated with the geologic and geophysical maps of the Sierra Nevada Digital Earth Science Atlas led by the California Geological Survey and U.S. Geological Survey. Grids are provided in ASCII and geotiff formats. Complete Bouguer and isostatic gravity data were gridded from nearly 29,000 gravity measurements that can be used to provide information on crustal structure, such as depth extent of plutons and arc terranes, and geometry of Cenozoic basins developed along the margins of the Sierra Nevada. Data from 57 regional aeromagnetic surveys were merged and gridded to provide information on the magnetic properties of the crust. In addition, these data were transformed to pseudogravity anomalies, which highlight voluminous or thick magnetic sources. The magnetic and pseudodgravity data in particular can aid in delineating mafic and ultramafic rocks as well as structures that may be conducive to mineral resources, such as faults, shear zones, and hydrothermal alteration.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date September 12, 2025
Metadata Updated Date October 29, 2025

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 12, 2025
Metadata Updated Date October 29, 2025
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/usgs-66c4eae6d34e033882892b86
Data Last Modified 2024-11-04T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 87ff1ff8-1e2e-419d-ad6f-d9bfa8f0ba86
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
Old Spatial -121.9760, 34.6945, -117.6516, 40.4334
Source Datajson Identifier True
Source Hash ddc1f4b07140db65f3e8c4f12b80465130f761dd8ae151f25c1e44cf5be28f86
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -121.9760, 34.6945, -121.9760, 40.4334, -117.6516, 40.4334, -117.6516, 34.6945, -121.9760, 34.6945}

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