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Author Berdan, Jean Milton, author.

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

Publication Info. Washington, D.C. : United States Department of the Interior, Geological Survey, 1964.
Washington, D.C. : Government Printing Office

Copies

Location Call No. OPAC Message Status
 Axe Federal Documents Online  I 19.3:1180-B    ---  Available
Description 1 online resource (iii, 19 pages) : map, charts.
cartographic image cri rdacontent
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
Series Geological Survey bulletin ; 1180-B
Geological Survey bulletin ; 1180-B.
Note Title from title screen (viewed July 24, 2014).
Additional title page description: "A historical summary including a review of pertinent literature."
Bibliography Includes bibliographical references (pages 18-19).
Subject Geology, Stratigraphic -- Devonian.
Geology, Stratigraphic -- Silurian.
Devonian Geologic Period. (OCoLC)fst01352702
Geology, Stratigraphic. (OCoLC)fst00940727
Silurian Geologic Period. (OCoLC)fst01354974
Chronological Term From 345 to 425 million years ago
Genre/Form Online resources.
Online resources.
Added Author Geological Survey (U.S.), issuing body.
Added Title Contributions to stratigraphic paleontology
Other Form: Print version: Berdan, Jean Milton The Helderberg Group and the position of the Silurian-Devonian boundary in North America (OCoLC)3598472
Gpo Item No. 0620 (online)
Sudoc No. I 19.3:1180-B

 
    
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