Geologic units in Garza county, Texas

Dockum Group, undivided (Late Triassic) at surface, covers 61 % of this area

Dockum Group

Blackwater Draw Formation (Pleistocene) at surface, covers 14 % of this area

Blackwater Draw Formation

Sand sheet deposits (Holocene) at surface, covers 7 % of this area

Sand sheet deposits

Lingos Formation (Middle (?) Pleistocene to Recent) at surface, covers 5 % of this area

Lingos Formation

Ogallala Formation (Pliocene to Miocene) at surface, covers 4 % of this area

Ogallala Formation

Quartermaster Formation (Permian; Guadalupe Series) at surface, covers 3 % of this area

Quartermaster Formation; North and central Texas including panhandle.

Quaternary deposit, undivided (Quaternary) at surface, covers 2 % of this area

Quaternary deposit, undivided

Alluvium (Holocene) at surface, covers 1 % of this area

Alluvium

Comanche Peak Limestone, Walnut Clay, and Antlers Sand, undivided (Early Cretaceous) at surface, covers 0.4 % of this area

Comanche Peak Limestone, Walnut Clay, and Antlers Sand, undivided; North, central, and south Texas including Quaternary for all of west Texas.

Tule Formation (Pleistocene) at surface, covers 0.3 % of this area

Tule Formation

Terrace deposits (Pleistocene and Holocene) at surface, covers 0.2 % of this area

Terrace deposits

Edwards Limestone and Antlers Sand, undivided (Early Cretaceous) at surface, covers 0.2 % of this area

Edwards Limestone and Antlers Sand, undivided

Playa deposits (Pleistocene and Holocene) at surface, covers < 0.1 % of this area

Playa deposits

Tahoka Formation (Pleistocene; Wisconsinan) at surface, covers < 0.1 % of this area

Tahoka Formation

Sand dune deposits (Holocene) at surface, covers < 0.1 % of this area

Sand dune deposits