Ostracode Biostratigraphy of the Yorktown Formation (upper Miocene and lower Pliocene) of Virginia and North Carolina three ostracode assemblage zones are proposed for deposits assigned to the Yorktown Formation. The older two zones are considered to be late Miocene in age and the youngest early Pliocene
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| Format: | UnknownFormat |
| Sprache: | eng |
| Veröffentlicht: |
Washington
United States Government Printing Office
1971
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| Schriftenreihe: | Geological Survey professional paper
704 |
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