Foliated to gneissic tonalite, granodiorite, and diorite

Foliated to gneissic tonalite, granodiorite, and diorite. Includes the Lookout Mountain tonalite (~2,718 Ma) of the Giants Range batholith and other intrusions within batholithic complexes defined by a low-to-moderate gravity signature with magnetic foliation apparent from aeromagnetic maps.
State Minnesota
Name Foliated to gneissic tonalite, granodiorite, and diorite
Geologic age Neoarchean
Lithologic constituents
Igneous > Plutonic > Granitic > Tonalite (Batholith)gneissic tonalite
Igneous > Plutonic > Granitic > Granodiorite (Batholith)
Igneous > Plutonic > Dioritic > Diorite (Batholith)
Comments Intrusions in all subprovinces of the Superior Province. Foliated to gneissic intrusive complexes and components of batholiths.

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 Beltrami - Cass - Chippewa - Crow Wing - Grant - Hubbard - Itasca - Kittson - Koochiching - Lake of the Woods - McLeod - Marshall - Norman - Otter Tail - Polk - Renville - Roseau - Saint Louis - Sibley - Todd - Traverse - Wadena - Wilkin