Zones and zonal variations in welded ash flows
By: by Robert L. Smith.
Contributors: Geological Survey (U.S.)
Series: U.S. Geological Survey professional paper -- 354-F; Shorter contributions to general geology
Publisher: U.S. Government Printing Office
Published: 1960
Place of publication: Washington, DC
Language: eng
Number of pages: 159
Subjects: Volcanic ash, tuff, etc.; Ignimbrite.
Notes: Bibliogr.

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