Tuffaceous sedimentary rocks

Consists of the Horse Spring Formation in Clark and southern Nye Counties. This unit corresponds to unit Ths from the 1978 State map, and likely represents a composite of units Ts3 and Ts2. It is poorly known and may include rocks of other ages including Cretaceous.
State Nevada
Name Tuffaceous sedimentary rocks
Geologic age middle Miocene to upper Oligocene
Lithologic constituents
Sedimentary (Tuffaceous)
NGMDB product
Counties Clark - Nye