Middle Tertiary volcanic rocks, undifferentiated

Includes the predominantly andesitic to dacitic stratovolcano complex at Sierra Blanca (Oligocene to upper Eocene) and many smaller outliers.
State New Mexico
Name Middle Tertiary volcanic rocks, undifferentiated
Geologic age Lower Miocene to upper Eocene
Lithologic constituents
Major
Igneous > Volcanic > Felsic-volcanic > Dacite (Flow)
Igneous > Volcanic > Mafic-volcanic > Andesite (Flow)
References
NGMDB product
Counties Colfax - Lincoln - Luna - Otero - Rio Arriba - Sierra - Socorro