Sedimentary rocks of the Late Cretaceous Mesaverde Group (AZKmv;0)

Sedimentary rocks of the Late Cretaceous Mesaverde Group

Gray to buff sandstone with interbedded shale and coal. These rocks, which are similar to slightly younger rocks that form Mesa Verde in southwestern Colorado, were deposited on the margin of a shallow sea. Rocks of this map unit host the only large coal deposits in Arizona. (84-88 Ma)

State	Arizona
Name	Sedimentary rocks of the Late Cretaceous Mesaverde Group
Geologic age	Late Cretaceous
Lithologic constituents	Major Sedimentary > Coal (Bed) Sedimentary > Clastic > Sandstone (Bed) Sedimentary > Clastic > Mudstone > Shale (Bed)
Stratigraphic units	Mesaverde Group
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. Nations, J.D., 1989, Cretaceous history of northeastern and east-central Arizona, in Jenney, J.P., and Reynolds, S.J., editors, Geologic evolution of Arizona: Arizona Geological Society Digest 17, p. 435-446.
NGMDB product	NGMDB product page for 34746
Counties	Apache - Coconino - Navajo

Sedimentary rocks of the Late Cretaceous Mesaverde Group

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.

Nations, J.D., 1989, Cretaceous history of northeastern and east-central Arizona, in Jenney, J.P., and Reynolds, S.J., editors, Geologic evolution of Arizona: Arizona Geological Society Digest 17, p. 435-446.