National Geologic Map Database
General Information
- Title: Stratigraphy of the crystalline schists of Pennsylvania and Maryland
- Author(s): Knopf, E.B., and Jonas, A.I.
- Publishing Organization: American Journal of Science
- Series and Number: American Journal of Science, 5th Series v. 5, no. 25 [p. 40-62]
- Publication Date: 1923
- Map Scale: 1:1,440,000
- Cross Section: Yes
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- American Journal of Science
- 217 Kline Geology Laboratory
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- New Haven CT 06520-8109
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- Email: ajs@yale.edu
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