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Coalmont Fm

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Arkosic sandstone, conglomerate, and shale; coal in lower part; in North Park
State Colorado
Name Coalmont Fm
Geologic age Phanerozoic | Cenozoic | Tertiary
Primary rock type sandstone
Secondary rock type conglomerate
Other rock types shale; coal
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone > Arkose
Sedimentary > Clastic > Conglomerate
Sedimentary > Clastic > Mudstone > Shale
Minor
Sedimentary > Coal
Map references
Tweto, Ogden 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.
Unit references
Tweto, Ogden 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.
Counties Grand - Jackson - Routt