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Geologic units in Coke county, Texas

Edwards Limestone (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers 25 % of this area

Edwards Limestone

Whitehorse Group, undivided (Phanerozoic | Paleozoic | Permian [Guadalupe]) at surface, covers 22 % of this area

Whitehorse Group, undivided

Lithology: sandstone; shale; evaporite

San Angelo Formation (Phanerozoic | Paleozoic | Permian [Guadalupe]) at surface, covers 11 % of this area

San Angelo Formation

Lingos Formation (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Middle(?) Pleistocene-Late(?) Holocene) at surface, covers 8 % of this area

Lingos Formation

Lithology: sand; gravel; clay or mud; silt

Quaternary deposit, undivided (Phanerozoic | Cenozoic | Quaternary) at surface, covers 7 % 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

Blaine Formation (Phanerozoic | Paleozoic | Permian [Guadalupe]) at surface, covers 5 % of this area

Blaine Formation

Clear Fork Group (Phanerozoic | Paleozoic | Permian [Leonard]) at surface, covers 5 % of this area

Clear Fork Group

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

alluvium

Lithology: sand; silt; clay or mud; gravel

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

Terrace deposits

Whitehorse Group and Blaine Formation, undivided (Phanerozoic | Paleozoic | Permian [Guadalupe]) at surface, covers 2 % of this area

Whitehorse Group and Blaine Formation, undivided

Quartermaster Formation (Phanerozoic | Paleozoic | Permian [Guadalupe]) at surface, covers 2 % of this area

Quartermaster Formation

sand sheet deposits (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 2 % of this area

sand sheet deposits

Lithology: sand; silt

Antlers Sand (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers 0.9 % of this area

Antlers Sand

Dockum Group, undivided (Phanerozoic | Mesozoic | Triassic-Late) at surface, covers 0.6 % of this area

Dockum Group

Seymour Formation (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Middle [Irvingtonian]) at surface, covers 0.2 % of this area

Seymour Formation

Lithology: sand; gravel; clay or mud

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

Ogallala Formation