Geochemical analyses of rock samples collected at the Penn Mine, Calaveras County, California
By: by Jocelyn A. Peterson
Contributors: Geological Survey (U.S.)
Series: Open-file report -- 85-588; U.S. Geological Survey open-file report -- 85-588
Publisher: U.S. Dept. of the Interior, Geological Survey
Published: 1985
Place of publication: [Reston, Va.?]
Language: eng
Format: Microform
Subjects: Geochemical prospecting -- California -- Calaveras County
Notes: Distributed to depository libraries in microfiche

One map on folded sheet in pocket

Chiefly tables

Bibliography: leaf 17

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1985]. 2 microfiches ; 11 x 15 cm