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Aeromagnetic map of Minnesota, north-central region--Blackduck quadrangle

Creators:
Chandler, Val W. and Lively, R.S.
Description:
Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.
Publisher:
Minnesota Geological Survey
Collection:
Minnesota Geological Survey
Place:
Minnesota, United States
Subjects:
Environment and Geoscientific Information
Type:
Image
Year:
1998
Contributed by:
Minnesota
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