Geologic units in Brooks county, Texas

sand sheet deposits (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 60 % of this area: sand sheet deposits
Lithology: sand; silt
sand dune deposits (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 0.4 % of this area: sand dune deposits
Lithology: sand; silt
clay dune (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 0.9 % of this area: clay dune
Lithology: sand; silt; clay or mud
silt sheet (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 3 % of this area: silt sheet
Lithology: silt; sand
alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 0.2 % of this area: alluvium
Lithology: sand; silt; clay or mud; gravel
dune sand sheet deposits (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 29 % of this area: dune sand sheet deposits
Lithology: sand; silt
Goliad Formation (Phanerozoic | Cenozoic | Tertiary | Miocene) at surface, covers 7 % of this area: Goliad Formation
Lithology: clay or mud; sandstone; mudstone; carbonate; limestone; conglomerate