Κανονική προβολή Προβολή MARC Προβολή ISBD

Sheppard, Richard A.

Zeolitic diagenesis of tuffs in the Miocene Chalk Hills formation, western Snake River Plain, Idaho / by Richard A. Sheppard. - [Washington]: [United States Government Printing Office], [1991]. - iv, 27 p. : ill., tables, maps ; 28 cm. - 1963 .

Includes bibliographical references (p. 18-19).

Silicic vitric tuffs south of Oreana are completely altered to clinoptilolite with or without smectite and opal-CT.

Subjects--Topical Terms:
Volcanic ash, tuff, etc--Idaho--Chalk Hills Formation
Zeolites--Idaho--Chalk Hills Formation
Diagenesis--Idaho--Chalk Hills Formation
Geology, Stratigraphic--Miocene
Geology--Idaho

Subjects--Geographic Terms:
Chalk Hills Formation (Idaho)

Dewey Class. No.: 552.23