Geophysical investigations, maps. Total Intensity aeromagnetic map of Lake County, Ind., aeromagnetic survey 1947 by W. J. Dempsey, J. R. Henderson, R. T. Duffner. Scale 1 m.= 1 in., contour interval 10 gammas, n. p.
Publication Title:
Total Intensity aeromagnetic map of Lake County, Ind., aeromagnetic survey 1947 by W. J. Dempsey, J. R. Henderson, R. T. Duffner. Scale 1 m.= 1 in., contour interval 10 gammas, n. p.
Display Title:
Geophysical investigations, maps. Total Intensity aeromagnetic map of Lake County, Ind., aeromagnetic survey 1947 by W. J. Dempsey, J. R. Henderson, R. T. Duffner. Scale 1 m.= 1 in., contour interval 10 gammas, n. p.
Series Title:
Geophysical investigations, maps.
Corporate Agency Authors:
Geological Survey and Interior Dept.
Sort Author:
Geological Survey
Authors:
Dempsey, W. J., Henderson, J. R., and Duffner, R. T.
Date:
1949
Publish Date ISO Format:
1949-01-01T00:00:00Z
Publication Start:
19490101
Publication End:
19491231
Corporate/Agency Author:
Geological Survey
Publication month:
13
Publication year:
1949
SuDoc number:
I 19.25:In 2/13/949
Description:
38 X 22 in.
Notes:
[Prepared in cooperation with Indiana Conservation Department, Geology Division.]
Notes:
[Prepared in cooperation with Indiana Conservation Department, Geology Division.] † Distribution Made by Issuing Office. 15c.