The Helderberg Group and the position of the Silurian-Devonian boundary in North America /
by Jean M. Berdan.

Description

Main Author

Berdan, Jean Milton.

Related Names

Geological Survey (U.S.)

Language(s)

English

Published

Washington, [D.C.] : United States Government Printing Office, 1964.

Subjects

Silurian Geologic Period.
Geology, Stratigraphic.
Devonian Geologic Period.
Geology, Stratigraphic > Geology, Stratigraphic / Silurian.
Geology, Stratigraphic > Geology, Stratigraphic / Devonian.

Summary

"An historical summary including a review of pertinent literature."

Note

As of 12/05/2016, GPO could not validate the distribution status of this title for the FDLP.
At head of title: Department of the Interior, United States Geological Survey.

Physical Description

iii, 19 pages : map ; 24 cm.

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