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

Geologic units in Mills county, Texas

Quaternary deposit, undivided (Phanerozoic | Cenozoic | Quaternary) at surface, covers 0.7 % 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
Lithology: sand ; silt ; clay or mud; gravel; carbonate
Terrace deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 0.6 % of this area
Terrace deposits
Lithology: terrace; sand; gravel; silt; clay or mud
alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 0.6 % of this area
alluvium
Lithology: sand; silt; clay or mud; gravel
Strawn Group (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Middle [Atoka Des Moines]) at surface, covers 0.9 % of this area
Strawn Group
Lithology: shale; sandstone; clay or mud; sandstone; conglomerate; coal
Walnut Clay (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers < 0.1 % of this area
Walnut Clay
Lithology: clay or mud; limestone; shale
Travis Peak Formation (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers 17 % of this area
Travis Peak Formation
Lithology: conglomerate; sandstone; limestone
Paluxy Sand and Glen Rose Limestone, undivided (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers 8 % of this area
Paluxy Sand and Glen Rose Limestone, undivided
Lithology: sandstone; limestone; claystone
Paluxy Sand (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers 0.8 % of this area
Paluxy Sand
Lithology: sand; sandstone; limestone
Glen Rose Limestone (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers 2 % of this area
Glen Rose Limestone
Lithology: limestone; clay or mud; sandstone; conglomerate
undivided part Fredericksberg Group (Phanerozoic | Mesozoic | Cretaceous-Early) at surface, covers 0.5 % of this area
undivided part Fredericksberg Group
Lithology: clay or mud; limestone; mudstone; shale

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