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Mineral Resources > Online Spatial Data > Geology > by state > Colorado

Eagle Valley Fm

Siltstone, shale, and local gypsum
StateColorado
NameEagle Valley Fm
Geologic agePhanerozoic | Paleozoic | Carboniferous Pennsylvanian
Original map label&e
Primary rock typesiltstone
Secondary rock typeshale
Other rock typesevaporite
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Siltstone
Minor
Sedimentary > Chemical > Evaporite > Gypsum
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.
Geographic coverageEagle - Garfield - Pitkin

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