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

Geologic units in Gregg county, Texas

alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 15 % of this area
alluvium
Lithology: sand; silt; clay or mud; gravel
Carizzo Sand (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 4 % of this area
Carizzo Sand
Lithology: sandstone
Queen City Sand (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 55 % of this area
Queen City Sand
Lithology: sandstone; siltstone; clay or mud; sand
Terrace deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 4 % of this area
Terrace deposits
Lithology: terrace; sand; gravel; silt; clay or mud
Weches Formation (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers < 0.1 % of this area
Weches Formation
Lithology: sand; clay or mud
Reklaw Formation (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 22 % of this area
Reklaw Formation
Lithology: sandstone; clay or mud

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