| Abstract: | The Gerster Limestone contains three minor lithofacies: the packstone, wackestone, and mixed facies, differentiated largely on the basis of the carbonate matrix and mud content of the rocks. Five biostratigraphic zones ranging in age from Roadian-Wordian to Wordian are, in ascending order, the Thamnosia, Kuvelousia, transition, Yakovlevia, and
upper zones.
The Gerster was probably deposted in a protected coastal basin separated from the Phosphoria Basin by a shallow marine positive area. The brachiopod fauna is divided into fifteen bioassociations. The fauna is part of a continental margin suite of faunas distributed from west Texas to the Canadian Arctic and belongs to the Tethyan-nonreef biogeographica[ province. |
| Genre: | USGS Numbered Series |
| ProdID: | 11570 |
| Citation Author: | Wardlaw, Bruce R. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | 125 leaves, [42] leaves of plates :ill., maps ;28 cm.; (124 p. - PGS) |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 77-470 |
| Citation Search Results Text: | The biostratigraphy and paleoecology of the Gerster limestone (Upper Permian) in Nevada and Utah; 1977; OFR; 77-470; Wardlaw, Bruce R. |
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| Citation Year: | 1977 |
| Type: | citation/reference |
| Text: | The biostratigraphy and paleoecology of the Gerster limestone (Upper Permian) in Nevada and Utah; 1977; OFR; 77-470; Wardlaw, Bruce R. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1977/0470/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1977/0470/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
