Metasedimentary and metavolcanic rocks (WYXsv;0)

Metasedimentary and metavolcanic rocks

Sierra Madre--Granite gneiss, felsic gneiss, amphibolite, and metavolcanic rocks. Medicine Bow Mountains--Granite gneiss, felsic gneiss, amphibolite, and hornblende gneiss. Laramie Mountains--Pelitic schist, marble, granite gneiss, layered amphibolite, and felsic gneiss. Black Hills--Pelitic schist; includes minor amounts of granite and amphibolite.

State	Wyoming
Name	Metasedimentary and metavolcanic rocks
Geologic age	Early Proterozoic
Lithologic constituents	Major Metamorphic > Schist > Pelitic-schist Metamorphic > Gneissgranite gneiss, felsic gneiss, and hornblende gneiss Metamorphic > Amphibolite Minor Metamorphic > Metasedimentary > Metacarbonate > Marble Igneous > Plutonic > Granitic > Granite
References	Love, J.D. and Christiansen, A.C., 1985, Geologic Map of Wyoming: U.S. Geological Survey, scale 1:500,000. https://pubs.er.usgs.gov/publication/70046739
NGMDB product	NGMDB product page for 16366
Counties	Albany - Carbon - Crook - Laramie

Metasedimentary and metavolcanic rocks

Love, J.D. and Christiansen, A.C., 1985, Geologic Map of Wyoming: U.S. Geological Survey, scale 1:500,000.