Izett, Glen Arthur,  1928- <br/><br/>
The Bishop Ash Bed (Middle Pleistocene) and some older (Pliocene and Pleistocene) chemically and mineralogically similar ash beds in California, Nevada, and Utah / 
by Glen A. Izett, John D. Obradovich, and Harald H. Mehnert 
 - Washington :  U.S. G.P.O.,  1988 
 - iv, 37 p. :  ill., maps ;  28 cm. 
 - U.S. Geological Survey bulletin ;  1675 .
<br/><br/> Two folded leaves of tables in pocket 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Pleistocene<br/>Geology, Stratigraphic--Pliocene<br/>Volcanic ash, tuff, etc.--West (U.S.)<br/>Geology--West (U.S.)
<br/><br/><label>Dewey Class. No.: </label>551.792