Cache Peak Formation
Cache Peak Formation
Pliocene(?)
Consists of lava flows, fluvial sediments, and lesser pyroclastic deposits cropping out in the Tehachapi Mountains northeast of Monolith, CA. Named by Michael (1960), who divided it into a lower member, comprised of fluvial sediments and pyroclastic deposits, and an upper member, comprised predominantly of dacitic to andesitic lava flows. Michael (1960) interpreted the formation to unconformably overlie the Bopesta Formation (map unit bop) and tentatively assigned a Pliocene age based on stratigraphic position and geomorphic expression. However, the unit may be late Miocene or younger.