Geologic units in Curry county, New Mexico

Older alluvial deposits of upland plains and piedmont areas, and calcic soils and eolian cover sediments of High Plains region (Middle to lower Pleistocene) at surface, covers 81 % of this area

Includes scattered lacustrine, playa, and alluvial deposits of the Tahoka, Double Tanks, Tule, Blanco, Blackwater Draw, and Gatuna Formations, the latter of which may be Pliocene at base; outcrops, however, are basically of Quaternary deposits.

Eolian deposits (Holocene to middle Pleistocene) at surface, covers 10 % of this area

Eolian deposits.

Ogallala Formation (Lower Pliocene to middle Miocene) at surface, covers 8 % of this area

Alluvial and eolian deposits, and petrocalcic soils of the southern High Plains. Locally includes Qoa.

Blackwater Draw Formation (Pleistocene) at surface, covers 0.1 % of this area

Blackwater Draw Formation

Upper Chinle Group, Garita Creek through Redonda Formations, undivided (Upper Triassic) at surface, covers 0.1 % of this area

Upper Chinle Group, Garita Creek through Redonda Formations, undivided

Upper and Middle Jurassic rocks, undivided (Upper and Middle Jurassic) at surface, covers < 0.1 % of this area

In southwest includes the basalt-bearing Broken Jug Formation.

Cretaceous rocks, undivided (Cretaceous) at surface, covers < 0.1 % of this area

Cretaceous rocks, undivided

Ogallala Formation (Pliocene to Miocene) at surface, covers < 0.1 % of this area

Ogallala Formation

Alluvium (Holocene to upper Pleistocene) at surface, covers < 0.1 % of this area

Alluvium

Lacustrine and playa-lake deposits (Holocene) at surface, covers < 0.1 % of this area

Includes associated alluvial and eolian deposits of major lake basins.