Skip to main content

Chinle Formation

Chinle Formation
State Texas
Name Chinle Formation
Geologic age Phanerozoic | Mesozoic | Triassic-Late
Comments Shale, siltstone, sandstone, thin limestone lentils, and mudstone; mostly dusky red with thin greenish shales; Thickness as much as 1,200 ft.
Primary rock type fine-grained mixed clastic
Secondary rock type sandstone
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > Mixed-clastic > Siltstone-Mudstone (Bed)
Minor
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Sedimentary > Carbonate > Limestone (Bed)
Map references
Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000
Unit references
Bureau of Economic Geology, 1983, Tucumcari Sheet, Geologic Atlas of Texas, Bureau of Economic Geology, University of Texas at Austin, scale 1:250,000.
Counties Deaf Smith