National Geologic Map Database
General Information
- Title: Philadelphia folio, Norristown, Germantown, Chester, and Philadelphia quadrangles, Pennsylvania-New Jersey-Delaware
- Author(s): Bascom, Florence, Clark, W.B., Darton, N.H., Kummel, H.B., Salisbury, R.D., Miller, B.L., and Knapp, G.N.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Geologic Atlas of the United States Folio GF-162
- Publication Date: 1909
- Map Scale: 1:62,500
- Cross Section: Yes
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Geologic units referred to in Geolex
Additional Resources
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.