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 /

Bibliographic Details
Main Authors:	Heyl, Allen V. (Allen Van), 1918-2008 (Author), King, Elizabeth R. (Author)
Corporate Author:	Wisconsin Geological and Natural History Survey (sponsoring body.)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1966.
Series:	Geological Survey bulletin ; 1242-A. Contributions to economic geology.
Subjects:	Geology, Structural > Analysis. Aeromagnetic prospecting > Analysis. Geology > Mississippi River Valley. Ore deposits > Mississippi River Valley.
Online Access:	https://purl.fdlp.gov/GPO/gpo67606

Description
Item Description:	Title from title screen (viewed September 15, 2014).
Physical Description:	1 online resource (16 pages, 1 page of plates) : illustrations, color map.
Bibliography:	Includes bibliographical references (pages 15-16).