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.