National Geologic Map Database
General Information
- Title: The Martinsburg Formation (Middle and Upper Ordovician) in the Delaware Valley ,Pennsylvania-New Jersey
- Author(s): Drake, A.A., Jr., and Epstein, J.B.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Bulletin 1244-H
- Larger Work: Contributions to stratigraphy, 1966
- Publication Date: 1967
- Map Scale: 1:344,036
- Cross Section: None
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