Structural geology of western part of Lemhi Range, east-central Idaho
Professional Paper
1659
By: Russell G. Tysdal
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Abstract
The Poison Creek Anticline is a major fold that occupies a large part of the western part of the Lemhi Range. The fold is now broken by normal faults, but removal of displacement on the normal faults permitted reconstruction of the anticline. The fold formed during late Mesozoic compressional deformation in the hinterland of the Cordilleran thrust belt. It is in the hanging wall of the Poison Creek thrust fault, a major fault in east-central Idaho, that displaced Proterozoic strata over lower Paleozoic rocks.
Suggested Citation
Tysdal, R.G., 2002, Structural geology of western part of Lemhi Range, east-central Idaho: U.S. Geological Survey Professional Paper 1659, 33 p., https://doi.org/10.3133/pp1659.
ISSN: 2330-7102 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Structural geology of western part of Lemhi Range, east-central Idaho |
| Series title | Professional Paper |
| Series number | 1659 |
| DOI | 10.3133/pp1659 |
| Year Published | 2002 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Denver, CO |
| Description | 33 p. |
| Country | United States |
| State | Idaho |
| Other Geospatial | Western Part of Lemhi Range |