South Park Fm

Arkosic sandstone and shale, volcaniclastic conglomerate, and andesite flows and breccia
State Colorado
Name South Park Fm
Geologic age Tertiary
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Arkosic)
Sedimentary > Clastic > Mudstone > Shale
Minor
Igneous (Volcaniclastic-volcanic breccia)
Igneous > Volcanic > Mafic-volcanic > Andesite
Sedimentary > Clastic > Conglomeratevolcaniclastic
References

Tweto, Ogden, 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.

NGMDB product
Counties Costilla - Park