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Geologic units in Ector county, Texas

Blackwater Draw Formation (Phanerozoic | Cenozoic | Quaternary | Pleistocene) at surface, covers 72 % of this area

Blackwater Draw Formation

Lithology: sand; silt; clay or mud

Quaternary deposit, undivided (Phanerozoic | Cenozoic | Quaternary) at surface, covers 12 % of this area

sand, silt, clay, and gravel. locally indurated with calcium carbonate (caliche); includes point bar, natural levee, stream channel, sand dune, terrace, alluvial fan, landslide bolson and playa deposits

caliche deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 6 % of this area

caliche deposits

Lithology: evaporite

pond deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene) at surface, covers 4 % of this area

pond deposits

Lithology: silt; sand

alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 3 % of this area

alluvium

Lithology: sand; silt; clay or mud; gravel

dune sand sheet deposits (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 3 % of this area

dune sand sheet deposits

Lithology: sand; silt

sand sheet deposits (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 0.6 % of this area

sand sheet deposits

Lithology: sand; silt

Dockum Group, undivided (Phanerozoic | Mesozoic | Triassic-Late) at surface, covers 0.5 % of this area

Dockum Group

playa deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 0.3 % of this area

playa deposits

Lithology: clay or mud; silt

Antlers Sand (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers 0.1 % of this area

Antlers Sand

Edwards Limestone (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers < 0.1 % of this area

Edwards Limestone

Fredericksburg Group (Phanerozoic | Mesozoic | Cretaceous-Early [Comanchean]) at surface, covers < 0.1 % of this area

Fredericksburg Group

Ogallala Formation (Phanerozoic | Cenozoic | Tertiary | Pliocene Miocene) at surface, covers < 0.1 % of this area

Ogallala Formation