Pliocene to middle Miocene deposits (AZTsy;0)

Moderately to strongly consolidated conglomerate and sandstone deposited in basins during and after late Tertiary faulting. Includes lesser amounts of mudstone, siltstone, limestone, and gypsum. These deposits are generally light gray or tan. They commonly form high rounded hills and ridges in modern basins, and locally form prominent bluffs. Deposits of this unit are widely exposed in the dissected basins of southeastern and central Arizona. (2-16 Ma)

State	Arizona
Name	Pliocene to middle Miocene deposits
Geologic age	Middle Miocene to Pliocene
Original map label	Tsy
Comments	In dissected basins of southeast and central Arizona
Primary rock type	conglomerate
Secondary rock type	sandstone
Other rock types	gravel; sand; gypsum; limestone; mudstone; siltstone
Lithologic constituents	Major Sedimentary > Clastic > Sandstone (Bed) Sedimentary > Clastic > Conglomerate (Bed) Minor Sedimentary > Clastic > Mudstone (Bed) Sedimentary > Clastic > Siltstone (Bed) Incidental Unconsolidated > Coarse-detrital > Sand (Bed) Unconsolidated > Coarse-detrital > Gravel (Bed) Sedimentary > Chemical > Evaporite > Gypsum (Bed) Sedimentary > Carbonate > Marlstone (Bed) Sedimentary > Carbonate > Limestone (Bed) Sedimentary > Clastic > Sedimentary-breccia (Bed)
Map 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.
Unit 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.
Geographic coverage	Apache - Cochise - Coconino - Gila - Graham - Greenlee - La Paz - Maricopa - Mohave - Navajo - Pima - Pinal - Santa Cruz - Yavapai - Yuma