The Helderberg Group and the position of the Silurian-Devonian boundary in North America
Bulletin
1180-B
By: J.M. Berdan
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Abstract
Suggested Citation
Berdan, J., 1964, The Helderberg Group and the position of the Silurian-Devonian boundary in North America: U.S. Geological Survey Bulletin 1180, iii, 19 p. :map ;24 cm., https://doi.org/10.3133/b1180B.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | The Helderberg Group and the position of the Silurian-Devonian boundary in North America |
| Series title | Bulletin |
| Series number | 1180 |
| Chapter | B |
| DOI | 10.3133/b1180B |
| Year Published | 1964 |
| Language | ENGLISH |
| Publisher | U.S. G.P.O., |
| Description | iii, 19 p. :map ;24 cm. |