Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution
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Abstract
Acknowledging that there are large gaps in the knowledge of the geology of Alaska, the following threefold subdivision of Alaska into Paleozoic tectonic elements is proposed: Southern Alaska--the Alaska Range and farther south--is the northern end of the Paleozoic Cordilleran geosyncline that rims the eastern Pacific. Northern Alaska--the northeastern Brooks Range and the Arctic Coastal Plain--is underlain by a pre-Upper Devonian fold belt that may continue around the rim of the Canada Basin into the Franklinian geosyncline of the Canadian Arctic Islands. East-central Alaska, with a thinner, mainly carbonate rock section, seems to be a western extension of the Yukon shelf that separates the circum-Arctic geosynclinal trend from the Cordilleran geosyncline along the Pacific margin of southern Alaska.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution |
| Series title | Open-File Report |
| Series number | 70-64 |
| DOI | 10.3133/ofr7064 |
| Year Published | 1970 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | Report: iv, 131 p.; 2 Plates: 32.15 x 23.68 inches and 30.37 x 14.43 inches |
| Country | United States |
| State | Alaska |
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