Phenocryst compositions of late ash-flow tuffs from the central San Juan caldera cluster : results from Creede drill-hole samples and implications for regional stratigraphy / by Peter W. Lipman, Patricia E. Weston.

Bibliographic Details
Uniform Title:	U.S. Geological Survey open-file report ; 94-260-B. Preliminary scientific results of the Creede caldera Continental Scientific Drilling Program.
Main Author:	Lipman, Peter W.
Corporate Authors:	Geological Survey (U.S.) U.S. Continental Scientific Drilling Program
Other Authors:	Weston, Patricia E. Bethke, Philip Martin, 1930-
Language:	English
Published:	[Denver, Colo.] : U.S. Department of the Interior, U.S. Geological Survey, 2001.
Series:	U.S. Geological Survey open-file report ; 94-260-B. Preliminary scientific results of the Creede caldera Continental Scientific Drilling Program.
Subjects:	Volcanic ash, tuff, etc. > Colorado > Creede Region. Phenocrysts > Colorado > Creede Region. Boring > Colorado > Creede Region. Creede Formation (Colo.)
Physical Description:	43 pages : illustrations, maps ; 28 cm.
Format:	Government Document Microfilm Book

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