Geologic units in San Patricio county, Texas

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 16 % of this area: Lissie Formation
Lithology: sand; silt; clay or mud
Goliad Formation (Phanerozoic | Cenozoic | Tertiary | Miocene) at surface, covers 0.7 % of this area: Goliad Formation
Lithology: clay or mud; sandstone; mudstone; carbonate; limestone; conglomerate
Beaumont Formation, areas predominantly clay (Phanerozoic | Cenozoic | Quaternary | Pleistocene-Late) at surface, covers 41 % 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 25 % 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 3 % of this area: Deweyville Formation
Lithology: sand; silt; clay or mud
fill and spoil (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 0.4 % of this area: fill and spoil
Lithology: sand; silt; clay or mud
barrier island deposits (Phanerozoic | Cenozoic | Quaternary) at surface, covers 3 % of this area: barrier island deposits
Lithology: sand; silt
Terrace deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 0.3 % of this area: Terrace deposits
Lithology: terrace; sand; gravel; silt; clay or mud

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