National Geologic Map Database
General Information
- Title: Conodont-based determination of the Silurian-Devonian boundary in the Valley and Ridge province, northern and central Appalachians
- Author(s): Denkler, K.E., and Harris, A.G.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Bulletin 1837-B [p. B1-B13]
- Larger Work: Sando, W.J., ed., Shorter contributions to paleontology and stratigraphy
- Publication Date: 1988
- Map Scale: 1:3,463,643
- Cross Section: None
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