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Geologic units in Liberty county, Texas

Beaumont Formation, areas predominantly sand (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Late) at surface, covers 29 % of this area

Beaumont Formation, areas predominantly sand

Lithology: sand; silt; clay or mud; gravel

Lissie Formation (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Middle) at surface, covers 22 % of this area

Lissie Formation

Lithology: sand; silt; clay or mud

Deweyville Formation (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene (?)) at surface, covers 15 % of this area

Deweyville Formation

Lithology: sand; silt; clay or mud

Beaumont Formation, areas predominantly clay (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Late) at surface, covers 14 % of this area

Beaumont Formation, areas predominantly clay

Lithology: clay or mud; silt

alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 14 % of this area

alluvium

Lithology: sand; silt; clay or mud; gravel

Deweyville Formation with higher level? (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene (?)) at surface, covers 5 % of this area

Deweyville Formation with higher level?

Lithology: clay or mud; silt

Fleming Formation (Phanerozoic | Cenozoic | Tertiary | Miocene) at surface, covers 0.3 % of this area

Fleming Formation

Lithology: clay or mud; sandstone

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

Willis Formation

Lithology: clay or mud; silt; sand; gravel