State | Idaho |
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Name | Tonalite and trondhjemite. |
Geologic age | Cretaceous |
Lithologic constituents | Major
Igneous > Plutonic > Granitic > Tonalite > Trondhjemite (Pluton)Biotite-muscovite trondhjemite. Rocks contain conspicuous magmatic epidote in plutons along eastern edge of arc complex.
Igneous > Plutonic > Granitic > Tonalite (Pluton)Biotite- and hornblende-biotite tonalite. Rocks contain conspicuous magmatic epidote in plutons along eastern edge of arc complex.
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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 | |
Counties | Adams - Clearwater - Idaho - Lewis - Washington |