Bentonite deposits of the northern Black Hills district, Wyoming, Montana, and South Dakota
By: by Maxwell M. Knechtel and Sam H. Patterson.
Contributors: Patterson, Sam H. 1918-
Series: Contributions to economic geology; Geological Survey bulletin -- 1082-M
Publisher: U.S. G.P.O.
Published: 1962
Place of publication: Washington
Language: eng
Number of pages: 1030
Subjects: Bentonite deposits -- Wyoming -- Crook County.; Bentonite deposits -- Montana -- Carter County.; Bentonite deposits -- South Dakota -- Butte County.; Geology, Economic -- Wyoming -- Crook County.; Geology, Economic -- Montana -- Carter County.; Geology, Economic -- South Dakota -- Butte County.; Geology, Stratigraphic -- Cretaceous.; Groups (Stratigraphy) -- Wyoming -- Crook County.; Groups (Stratigraphy) -- Montana -- Carter County.; Groups (Stratigraphy) -- South Dakota -- Butte County.
Notes: Issued in a case.

Accompanied by two plates on three folded leaves (plates 60 and 61) and one table on folded leaf (table 4) in portfolio.

"An investigation of the district that has supplied most of the gel-forming sodium-type bentonite produced to date in the United States"--t.p.

Includes bibliographical references (p. 1024-1027) and index.