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Alaska | Alaska Digital Geologic Map Compilation

Digital Geologic Map Compilation
Digital Geologic Map Compilation

Compilation of existing geologic maps of the northern foothills of the Brooks Range, from the Chukchi Sea eastward to the Canadian border. This work is a collaboration between the USGS and the Alaska Department of Natural Resources, Division of Geological and Geophysical Surveys (DGGS) and the Division of Oil and Gas. It will result in a synthesis of geologic mapping that was conducted independently over several decades by the USGS and DGGS and will be produced at a fraction of the cost of new, field-based geologic mapping of the same area. A report of revised stratigraphic nomenclature for common use on all maps was completed in 2003.

The following maps are a product of the USGS Digital Geologic Maps of Northern Alaska project, which captures in digital format quadrangles across the entire width of northern Alaska. Sources include geologic maps previously published in hardcopy format and recent updates and revisions based on field mapping by the Alaska Department of Natural Resources, Division of Geological and Geophysical Surveys and Division of Oil and Gas, and the U.S. Geological Survey. Individual quadrangles are digitized at either 1:125,000 or 1:250,000 depending on the resolution of source maps. The project objective is to produce a set of digital geologic maps with uniform stratigraphic nomenclature and structural annotation, and publish those maps electronically. The paper version of this map is available for purchase from the USGS Store.

Below is a list of Quatrangles completed: 

Related Link:
USGS Alaska geologic map data -- A GIS database of geologic units and structural features in Alaska

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East-central North Slope of Alaska showing location
of Umiat quadrangle (from SIM 2817-A).
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Geologic map of the Point Lay quadrangle
(from SIM 2817-E).
 

David Houseknecht
Project Chief

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Page Last Modified: Friday, June 12, 2015