Aeromagnetic and tectonic analysis of the Upper Mississippi Valley zinc-lead district : a magnetic study indicating major geologic structures in the basement rock which controlled in part the locations of overlying ore deposits / by Allen V. Heyl and Elizabeth R. King ; prepared in cooperation with the Wisconsin Geological and Natural History Survey.
- Physical Description: 1 online resource (16 pages, 1 page of plates) : illustrations, color map.
- Publisher: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1966.
- Distributor: Washington : United States Government Printing Office
|General Note:|| Title from title screen (viewed September 15, 2014).
|Bibliography, etc. Note:|| Includes bibliographical references (pages 15-16).
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Geology, Structural >
Aeromagnetic prospecting > Analysis.
Geology > Mississippi River Valley.
Ore deposits > Mississippi River Valley.
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- Geological Survey bulletin ; 1242-A
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