Tonalitic orthogneiss and foliated granodiorite. (IDKog;0)

Tonalitic orthogneiss and foliated granodiorite.

Orthogneiss (primarily tonalite) and foliated granodiorite (~90 to ~80 Ma). Includes early phases of the Idaho batholith, migmatite, intrusions along major structures, and plutonic rocks of uncertain age along the Salmon River northwest of Salmon. (Paleocene and Cretaceous Idaho Batholith and Older Cretaceous and Jurassic Intrusive Rocks).

State	Idaho
Name	Tonalitic orthogneiss and foliated granodiorite.
Geologic age	Cretaceous
Lithologic constituents	Major Igneous > Plutonic > Granitic > Granodiorite (Batholith, Pluton)Foliated granodiorite. Metamorphic > MetaigneousORTHOGNEISS - Orthogneiss (primarily tonalite) and foliated granodiorite. Minor Metamorphic > Migmatite
References	Lewis, Reed S., Link, Paul K., Stanford, Loudon R., and Long, Sean P., Geologic Map of Idaho, 2012, Idaho Geological Survey, Geologic Map 9 (M-9); Scale 1:500,000.
NGMDB product	NGMDB product page for 97750
Counties	Bonner - Clearwater - Gem - Idaho - Kootenai - Lemhi - Valley

Tonalitic orthogneiss and foliated granodiorite.

Lewis, Reed S., Link, Paul K., Stanford, Loudon R., and Long, Sean P., Geologic Map of Idaho, 2012, Idaho Geological Survey, Geologic Map 9 (M-9); Scale 1:500,000.