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., joint author.; Wright, Nancy A., joint author.
Series: Geological Survey professional paper ; 1045; Geological Survey professional paper ;; 1045.
Publisher: U.S. Govt. Print. Off.
Published: 1978
Place of publication: Washington
Language: eng
Number of pages: 21
Subjects: Iron ores -- Michigan -- Marquette Co. -- Data processing.
Notes: Bibliography: p. 21.