| State | Colorado |
|---|---|
| Name | Denver and Arapahoe Fms |
| Geologic age | Tertiary-Cretaceous |
| Lithologic constituents |
Major
Sedimentary > Clastic > Mudstone
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Conglomerate
Minor
Igneous > Volcanic > Mafic-volcanic > Andesite
Sedimentary > Clastic > Mudstone > Claystone
|
| References | Tweto, Ogden, 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000. |
| NGMDB product | |
| Counties | Adams - Arapahoe - Boulder - Broomfield - Denver - Jefferson - Weld |