| State | Colorado |
|---|---|
| Name | Rocks of Pikes Peak Batholith (1000-m.y. age group) |
| Geologic age | Middle Proterozoic |
| Lithologic constituents |
Major
Igneous > Plutonic > Granitic > Alkali-feldspar-granite
Igneous > Plutonic > Granitic > Granite
Minor
Igneous > Plutonic > Syenitic > Quartz-monzonite
|
| References | Tweto, Ogden, 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000. |
| NGMDB product | |
| Counties | Clear Creek - Douglas - El Paso - Jefferson - Park - Teller |