Computer-aided estimates of concentrating-grade iron resources in the Negaunee Iron-formation, Marquette District, Michigan
By: by W. F. Cannon, Sandra L. Powers, and Nancy A. Wright
Contributors: Powers, Sandra L; Wright, Nancy A.; Geological Survey (U.S.)
Series: Geological Survey professional paper -- 1045
Publisher: Dept. of the Interior, Geological Survey : for sale by the Supt.of Docs., U.S. Govt. Print. Off.
Published: 1977
Place of publication: Washington
Language: eng
Number of pages: 21
Subjects: Iron ores -- Michigan -- Marquette Co. -- Data processing
Notes: Bibliography: p. 21