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Title: Alaska Geologic Formations, 1997

Dates

• Coverage: 1980
• Coverage: 1997

Publishers

• U.S. Geological Survey

Summary

Alaska Geologic Formations is a polygon theme representing geologic formations throughout Alaska. This dataset consists of a polygon coverage and associated attribute data derived from the 1980 Geologic Map of Alaska compiled by H.M. Beikman and published by the US Geological Survey. The map is a regional summary of geologic formations and units that can be shown cartographically at 1:2,500,000. This digital dataset includes all (184) map units from the original map. 182 are geologic units; the others are polygons for large glaciers and lakes. This coverage is not intended to be a complete representation of the printed geologic map. It does NOT include the following features: faults, locations of volcanoes or volcanic vents, the map explanation, correlation charts or description of map units.

Subjects

• Alaska
• Geoscientificinformation
• Datasets

Geospatial coordinates

• Bounding Box: BBOX (-179.142214, -129.99375, 71.392025, 51.217292)
• Geometry: BBOX (-179.142214, -129.99375, 71.392025, 51.217292)

Provider

Columbia

Rights

• Access rights: Restricted

Citation

United States Geological Survey (USGS). Alaska Geologic Formations, 1997. U.S. Geological Survey. Polygon data. https://geodata.library.columbia.edu/catalog/sde-columbia-landinfo_alaska_geology_1997

Format

Shapefile

Languages

• English