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

Morrison, Ralston Creek, and Entrada (or Exeter) Fms

StateColorado
NameMorrison, Ralston Creek, and Entrada (or Exeter) Fms
Geologic agePhanerozoic | Mesozoic | Jurassic
Original map labelJmre
Primary rock typemudstone
Secondary rock typesandstone
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Claystone
Sedimentary > Clastic > Mudstone
Sedimentary > Clastic > Sandstone
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 coverageBaca - Bent - Huerfano - Las Animas - Otero - Prowers - Pueblo

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