Tephra layers of Blind Spring Valley and related upper Pliocene and Pleistocene tephra layers, California, Nevada, and Utah :  Isotopic ages, correlation, and magnetostratigraphy / 
By Andrei M. Sarna-Wojcicki ... [et al.]. 
 - Denver, CO :  U.S. Dept. of the Interior, U.S. Geological Survey,  2005. 
 - v, 63 p. :  ill. (some col.), col. maps ;  28 cm. 
 - Professional paper ;Geological Survey (U.S.)  No.1701 .
 - Professional paper (Geological Survey (U.S.)) ;  No. 1701 .
<br/><br/>Includes bibliogr. references (p. 49-52). 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Volcanic ash, tuff, etc.--California.<br/>Volcanic ash, tuff, etc.--Nevada.<br/>Volcanic ash, tuff, etc.--Utah.<br/>Geology, Stratigraphic--Pliocene<br/>Geology, Stratigraphic--Pleistocene
<br/><br/><label>Dewey Class. No.: </label>552/.23/0979448