State | Idaho |
---|---|
Name | Riggins Group, Orofino series, and related rocks. |
Geologic age | Cretaceous to Permian |
Lithologic constituents |
Major
Metamorphic > GneissMetasedimentary and metavolcanic; typically hornblende-rich.
Metamorphic > SchistMetasedimentary and metavolcanic; typically hornblende-rich.
Metamorphic > AmphiboliteMetasedimentary and metavolcanic; typically hornblende-rich.
Minor
Metamorphic > Metasedimentary > Metacarbonate > Marble
|
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 - Nez Perce |