Precambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado /

Bibliographic Details
Main Authors:	Sheridan, Douglas M., 1921- (Author), Raymond, William H. (Author)
Format:	Government Document eBook
Language:	English
Published:	[Reston, Va.] : Department of the Interior, United States Geological Survey, 1984.
Series:	Geological Survey bulletin ; 1550.
Subjects:	From 570 million to 5 billion years ago Sulfides > Colorado. Geology, Stratigraphic > Precambrian. Geology > Colorado. Geology. Geology, Stratigraphic. Precambrian Geologic Period. Sulfides. Colorado.
Online Access:	https://purl.fdlp.gov/GPO/gpo62001

Description
Item Description:	Title from title screen (viewed Aug. 4, 2014).
Physical Description:	1 online resource (iii, 31 pages) : illustrations, map.
Bibliography:	Includes bibliographical references (pages 28-31).