Copper deposits of part of Helvetia mining district, Pima County, Arizona
By: by S. C. Creasey and George L. Quick.
Contributors: Quick, George L.
Series: Geological Survey bulletin -- 1027-F; A contribution to economic geology; Contributions to economic geology
Publisher: U.S. G.P.O.
Published: 1955
Place of publication: Washington
Language: eng
Number of pages: 323
Subjects: Geology -- Arizona -- Pima County.; Mines and mineral resources -- Arizona -- Pima County.; Rocks, Sedimentary -- Arizona -- Pima County.; Copper ores -- Arizona -- Pima County.; Ore deposits -- Arizona -- Pima County.; Geology, Economic -- Arizona -- Pima County.; Rocks, Igneous -- Arizona -- Pima County.; Copper mines and mining -- Arizona -- Pima County.
Notes: Issued in a case.

Accompanied by maps on five folded plates (28-32) in portfolio.

"Description and maps of four mines typical of the district."

Includes bibliographical references (p. 321) and index.