Superimposed magnetic on gravity anomaly map of the Central Duluth Complex and western part of the Beaver Bay Complex, Lake and St Louis Counties, Minnesota, M-117
Superimposed magnetic on gravity anomaly map of the Central Duluth Complex and western part of the Beaver Bay Complex, Lake and St Louis Counties, Minnesota, M-117
Description
Gravity (interpretation of gravity data collected with ground based meters indicating differences in rock density of rocks in the upper crust) and magnetic anomaly (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) map of the central Duluth complex, scale 1:100,000.
Chandler, Val W. (2001). Superimposed magnetic on gravity anomaly map of the Central Duluth Complex and western part of the Beaver Bay Complex, Lake and St Louis Counties, Minnesota, M-117. Minnesota Geological Survey. https://reflections.mndigital.org/catalog/mgs:1189 (map)