Granitoid intrusions, variably magnetic

Granitoid intrusions, variably magnetic. Includes the Ann Lake granite (~1,784 Ma) and Glendorado pluton (~1,788 Ma).
State Minnesota
Name Granitoid intrusions, variably magnetic
Geologic age Paleoproterozoic
Lithologic constituents
Major
Igneous > Plutonic > Granitic (Batholith)
Comments Part of the East-central Minnesota batholith. Part of the Geon 17 post-tectonic (post-Penokean orogeny) intrusions related to the Yavapai orogeny.
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 Benton - Kanabec - Mille Lacs - Morrison - Sherburne