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Geologic units in Newton county, Texas

Willis Formation (Phanerozoic | Cenozoic | Tertiary | Pliocene) at surface, covers 21 % of this area
Willis Formation
Lithology: clay or mud; silt; sand; gravel
Nash Creek Formation (Phanerozoic | Cenozoic | Tertiary | Oligocene) at surface, covers 0.2 % of this area
Nash Creek Formation
Lithology: indeterminate
alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 8 % of this area
alluvium
Lithology: sand; silt; clay or mud; gravel
Lissie Formation (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Middle) at surface, covers 13 % of this area
Lissie Formation
Lithology: sand; silt; clay or mud
Catahoula Formation (Phanerozoic | Cenozoic | Tertiary | Oligocene) at surface, covers 6 % of this area
Catahoula Formation
Lithology: mudstone; sand; tuff; sandstone; conglomerate
Fleming Formation (Phanerozoic | Cenozoic | Tertiary | Miocene) at surface, covers 22 % of this area
Fleming Formation
Lithology: clay or mud; sandstone
Terrace deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 0.4 % of this area
Terrace deposits
Lithology: terrace; sand; gravel; silt; clay or mud
Alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 0.2 % of this area
gray to brownish gray clay and silty clay, reddish brown in the Red River Valley, some sand and gravel locally.
Lithology: clay or mud; sand; gravel
Beaumont Formation, areas predominantly clay (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Late) at surface, covers 2 % of this area
Beaumont Formation, areas predominantly clay
Lithology: clay or mud; silt
Beaumont Formation, areas predominantly sand (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Late) at surface, covers 16 % of this area
Beaumont Formation, areas predominantly sand
Lithology: sand; silt; clay or mud; gravel
Deweyville Formation (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene (?)) at surface, covers 11 % of this area
Deweyville Formation
Lithology: sand; silt; clay or mud

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