Lower Permian sediment-gravity-flow sequence, eastern California
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Abstract
The Lower Permian (middle Wolfcampian) Zinc Hill sequence, a 65- to 110-m-thick series of beds in the Owens Valley Group in east-central California, comprises sediment-gravity-flow deposits consisting of carbonate sediment that originated on, and siliciclastic sediment that may have been generally ponded behind, a carbonate shelf to the east and northeast. Thickness patterns and paleocurrent indicators show that the sediment forming this sequence was transported primarily southeastward and deposited in a southeast-trending, lobe-shaped body. Evidently, the sediment was carried from the shelf by sediment-gravity flows that travelled westward down the slope and then turned southeastward upon reaching a southeast-trending basin at the base of the slope. Data derived from the study of this basin, which paralleled the shelf edge and is thought to have formed parallel to a southeast-oriented segment of the Early Permian continental margin, constitute one of the most important arguments favoring a Pennsylvanian to Early Permian age of truncation of the western North American continental margin.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Lower Permian sediment-gravity-flow sequence, eastern California |
| Series title | Sedimentary Geology |
| DOI | 10.1016/0037-0738(89)90080-8 |
| Volume | 64 |
| Issue | 1-3 |
| Year Published | 1989 |
| Language | English |
| Publisher | Elsevier |
| Description | 12 p. |
| First page | 1 |
| Last page | 12 |
| Country | United States |
| State | California |
| Other Geospatial | eastern California |