Analog records from an airborne electromagnetic and magnetic survey of parts of the Upper Peninsula of Michigan and northern Wisconsin
By: conducted and prepared by Geoterrex Limited ; with an introduction by William D. Heran ; United States Department of the Interior, Geological Survey
Contributors: Heran, William D; Geoterrex Ltd; Geological Survey (U.S.)
Series: Open-file report -- 81-577 B; Open-file report (Geological Survey (U.S.)) -- 81-577 B
Publisher: The Survey
Published: 1981
Place of publication: [Reston, Va.?]
Language: eng
Format: Microform
Subjects: Geomagnetism -- Michigan; Geomagnetism -- Wisconsin
Notes: Microfiche. [Denver, Colo. : U.S. Geological Survey, 1981?]. 72 microfiches ; 11 x 15 cm