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Mineral Resources > Online Spatial Data > Geology > by state > Texas Geology

Geologic units in Deaf Smith county, Texas

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

Ogallala Formation, alluvial and eolian deposits, and petrocalcic soils of the southern High Plains; Lower Pliocene to middle Miocene (locally includes unit Qoa)

Lithology: alluvium; eolian; carbonate

Ogallala Formation (Phanerozoic | Cenozoic | Tertiary | Pliocene Miocene) at surface, covers 10 % of this area

Ogallala Formation

Lithology: sand; silt; clay or mud; gravel; carbonate

Quaternary deposit, undivided (Phanerozoic | Cenozoic | Quaternary) at surface, covers 0.2 % 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

Lithology: sand ; silt ; clay or mud; gravel; carbonate

sand dune deposits (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 0.2 % of this area

sand dune deposits

Lithology: sand; silt

playa deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 0.9 % of this area

playa deposits

Lithology: clay or mud; silt

Chinle Formation (Phanerozoic | Mesozoic | Triassic-Late) at surface, covers 4 % of this area

Chinle Formation

Lithology: fine-grained mixed clastic; sandstone

unnamed Pliocene deposits (Phanerozoic | Cenozoic | Tertiary | Pliocene) at surface, covers 0.4 % of this area

unnamed Pliocene deposits

Lithology: sand; gravel; silt

Blackwater Draw Formation (Phanerozoic | Cenozoic | Quaternary | Pleistocene) at surface, covers 84 % of this area

Blackwater Draw Formation

Lithology: sand; silt; clay or mud

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

alluvium

Lithology: sand; silt; clay or mud; gravel

Dockum Group, undivided (Phanerozoic | Mesozoic | Triassic-Late) at surface, covers 0.2 % of this area

Dockum Group

Lithology: fine-grained mixed clastic; limestone; conglomerate

older alluvial deposits of upland plains and piedmont areas (Phanerozoic | Cenozoic | Quaternary) at surface, covers < 0.1 % of this area

Older alluvial deposits of upland plains and piedmont areas, and calcic soils and eolian cover sediments of High Plains region; 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; upper Quaternary to uppermost Pliocene(?)

Lithology: alluvium

caliche deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers < 0.1 % of this area

caliche deposits

Lithology: evaporite

upper Chinle Group (Garita Creek, Trujillo, Bull Canyon, and Redonda Formations) (Phanerozoic | Mesozoic | Triassic) at surface, covers < 0.1 % of this area

Upper Chinle Group, Garita Creek through Redonda Formations, undivided

Lithology: medium-grained mixed clastic; fine-grained mixed clastic; limestone