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Sheppard, Richard A.

Zeolitic diagenesis of tuffs in Miocene lacustrine rocks near Harney Lake, Harney County, Oregon / by Richard A. Sheppard. - Washington: United States Government Printing Office, 1994. - iv, 28 p. : ill., maps, tables ; 28 cm. - 2108 .

Includes bibliographical references (p. 20).

Silicic vitric tuffs east of Harney Lake are altered chiefly to clinoptilolite with or without other zeolites such as analcime, chabazite, erionite, mordenite and phillipsite.

Subjects--Topical Terms:
Zeolites--Oregon--Harney County
Sedimentary rocks--Oregon--Harney County
Volcanic ash, tuff, etc--Oregon--Harney County
Diagenesis--Oregon--Harney County
Geology, Stratigraphic--Miocene
Geology--Oregon--Harney County

Dewey Class. No.: 552.50979595