State | Wyoming |
---|---|
Name | Lower Miocene and Upper Oligocene rocks or rocks equivalent to Upper and Lower Miocene rocks and White River Formation |
Geologic age | Upper Oligocene-Upper Miocene |
Lithologic constituents |
Major
Sedimentary > Clastic > Mudstone > Claystone (Tuffaceous)
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Clastic > Conglomerate
Incidental
Igneous > Volcanic (Pyroclastic-tuff)
|
References | |
NGMDB product | |
Counties | Albany - Converse - Crook - Goshen - Laramie - Niobrara - Platte |