National Geologic Map Database
General Information
- Title: Correlation of the Pottsville and Lower Allegheny series in parts of Clearfield and Centre Counties
- Author(s): Williams, E.G., and Nickelsen, R.P.
- Publishing Organization: Pennsylvania State University, Mineral Industries Experiment Station
- Series and Number: Bulletin no. 71 [p. 36-50]
- Publication Date: 1958
- Cross Section: None
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