National Geologic Map Database
General Information
- Title: Ordovician-Silurian relations in Pennsylvania
- Author(s): Willard, Bradford, and Cleaves, A.B.
- Publishing Organization: Geological Society of America
- Series and Number: Bulletin v. 50 no. 7 [p. 1165-1198]
- Publication Date: 1939
- Cross Section: Yes
- Find more maps in this area with mapView
- Corrections to this entry?
* See base map disclaimer below
Geologic units referred to in Geolex
- This product is available, please note the publication series and number, and then contact:
- Geological Society of America
- P.O. Box 9140
- Boulder, CO 80301-9140
- Phone: (303) 357-1000 or 1-888-443-4472
- Fax: (303) 357-1070
- Email: gsaservice@geosociety.org
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.