National Geologic Map Database
Product Description Page
-
Title: The Helderberg Group and the position of the Silurian-Devonian boundary in North America
-
Author(s): Berdan, J.M.
-
Publishing Organization: U.S. Geological Survey
-
Series and Number: Bulletin 1180-B [p. B1-B19]
-
Larger Work: Contributions to stratigraphic paleontology
- Publication Date: 1964
- Map Scale: 1:6,034,286
- Cross Section: Yes
- North Latitude: 42° 55' 50" N (42.9306)
- South Latitude: 41° 21' 35" N (41.3597)
- East Longitude: 74° 3' 55" W (-74.0653)
- West Longitude: 75° 6' 40" W (-75.1111)
-
Corrections to this entry?
* See base map disclaimer below.
Find more maps in this area with mapView
- Links and Downloads:
- View the publication from the USGS Publications Warehouse
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.