Magnetic intrusions, undifferentiated

Magnetic intrusions, undifferentiated. Typically too small to ascertain gravity expression.
State Minnesota
Name Magnetic intrusions, undifferentiated
Geologic age Archean
Lithologic constituents
Major
Igneous > Plutonicintrusions, undifferentiated
References

Jirsa, Mark A., Boerboom, Terrence J., Chandler, Val W., Mossler, John H., Runkel, Anthony C., and Setterholm, Dale R., 2011, S-21 Geologic Map of Minnesota-Bedrock Geology; Minnesota Geological Survey, State Map Series S-21. Scale 1:500,000.

NGMDB product
Counties Becker - Beltrami - Cass - Clay - Clearwater - Grant - Itasca - Koochiching - Lake - Marshall - Norman - Otter Tail - Pennington - Polk - Red Lake - Roseau - Saint Louis - Wilkin