Vermejo Formation and Trinidad Sandstone

Vermejo Formation and Trinidad Sandstone; Maastrichtian
State New Mexico
Name Vermejo Formation and Trinidad Sandstone
Geologic age Phanerozoic | Mesozoic | Cretaceous
Comments Vermejo Formation includes Rail Canyon Sandstone Member. Vermejo lithologies: sandstone, shale, and coal.
Primary rock type sandstone
Secondary rock type shale
Other rock types coal
Lithologic constituents
Major
Sedimentary > Clastic > Mixed-clastic > Sandstone-Mudstone (Bed)sandstone and shale
Minor
Sedimentary > Coal (Bed)sandstone and shale
Map references
Anderson, O.J., Jones.G.E., and Green, G.N., compilers, 1997, Geologic map of New Mexico: U.S. Geological Survey Open-File Report 97-52.
Unit references
Anderson, O.J., Jones.G.E., and Green, G.N., compilers, 1997, Geologic map of New Mexico: U.S. Geological Survey Open-File Report 97-52.
Counties Colfax - Taos