Datasets > Polygon data > Alaska > 2005-2009

Geologic Units (Polygons): Generalized Geologic Map of Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands, 2005

Geological Survey (U.S.) · 2005 Full Details

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Full Details

Title
Geologic Units (Polygons): Generalized Geologic Map of Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands, 2005
Description
This polygon shapefile contains polygon boundaries, tags and labels for major geologic units in Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. In addition to the polygons representing the areal extent of geologic units, it identifies major faults and continental glaciation in Alaska. The data depict the geology of the bedrock that lies at or near the land surface, but not the distribution of surficial materials such as soils, alluvium, and glacial deposits. This map complements the Generalized Geologic Map of the Conterminous United States by Reed and Bush. The data are generalized from a compilation prepared for use in the Geologic Map of North America, published as a paper map by the Geological Society of America and to be released as a digital file by the U.S. Geological Survey. This layer is part of the 1997-2014 edition National Atlas of the United States., These data have been prepared with a degree of detail appropriate for viewing at a scale of 1:7,500,000. Because of the degree of generalization required (generalization based on compilation scale), the data are intended primarily for display and for regional and national analysis, rather than for more detailed analysis in specific areas. No responsibility is assumed by the U.S. Geological Survey in the use of these data., This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Creator
Reed, John Calvin, Jr. 1930-, Bush, Charles A.
Publisher
Geological Survey (U.S.)
Subject
Faults (Geology), Folds (Geology), Shields (Geology), Plate tectonics, Geology, Geoscientific Information
Temporal Coverage
2005
Date Issued
2005
Rights
This item is in the public domain. There are no restrictions on use.
Rights Holder
This work is in the Public Domain, meaning that it is not subject to copyright.
Access Rights
Public
Format
Shapefile
Language
English
Date Added
October 01, 2025

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  • Citation
    Reed, John Calvin, Jr. 1930-, Bush, Charles A. (2005). Geologic Units (Polygons): Generalized Geologic Map of Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands, 2005. Geological Survey (U.S.). https://purl.stanford.edu/bs303sf0424 (dataset)
  • BTAA Geoportal Link

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