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Lykins Lyons and Fountain Fms

Red siltstone, sandstone, and conglomerate
StateColorado
NameLykins Lyons and Fountain Fms
Geologic agePhanerozoic | Paleozoic Mesozoic | Carboniferous Pennsylvanian Permian(?) Triassic
Original map label@&lf
Primary rock typesiltstone
Secondary rock typesandstone
Other rock typesconglomerate
Lithologic constituents
Major
Sedimentary > Clastic > Conglomerate
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Siltstone
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 coverageBoulder - Douglas - Jefferson

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