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Computer-aided estimates of concentrating-grade iron resources in the Negaunee Iron-formation, Marquette District, Michigan /

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Bibliographic Details
Main Authors: Cannon, William F. (Author), Powers, Sandra L. (Author), Wright, Nancy A. (Author)
Format: Government Document eBook
Language:English
Published: Washington : United States Department of the Interior, Geological Survey, 1978.
Series:Geological Survey professional paper ; 1045.
Subjects:
Iron ores > Michigan > Marquette County > Data processing.
Online Access:https://purl.fdlp.gov/GPO/gpo90120
Description
Item Description:Title from title screen (viewed October 6, 2014).
"An estimation of the magnitude, quality, and economic potential of subeconomic resources of iron in an important active mining district."
Physical Description:1 online resource (iii, 21 pages) : illustrations, map.
Bibliography:Includes bibliographical references (page 21).