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Permian sedimentary rocks

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Gray to tan, cherty limestone of Kaibab and Toroweap Formations, and underlying white to tan, fine-grained Coconino Sandstone. Limestone was deposited in a shallow sea, and sandstone was deposited in near-shore dunes and beach settings. (270-280 Ma)
State Arizona
Name Permian sedimentary rocks
Geologic age Permian
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)cherty limestone
Sedimentary > Clastic > Sandstone (Bed)
Minor
Sedimentary > Chemical > Chert (Bed)cherty limestone
Stratigraphic units Kaibab Formation, Toroweap Formation, Coconino Sandstone
References

Richard, S.M., Reynolds, S.J., Spencer, J.E., and Pearthree, P.A., 2000, Geologic Map of Arizona: Arizona Geological Survey Map 35, 1 sheet, scale 1:1,000,000.

Blakey, R.C., and & Knepp, R., 1989, Pennsyvanian and Permian geology of Arizona, in Jenney, J.P., and Reynolds, S.J., editors, Geologic evolution of Arizona: Arizona Geological Society Digest 17, p. 313-347.
NGMDB product
Counties Apache - Coconino - Gila - Mohave - Navajo - Yavapai