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Geologic units in Panola county, Texas

Wilcox Group, undivided (Phanerozoic | Cenozoic | Tertiary | Paleocene Eocene) at surface, covers 48 % of this area

Wilcox Group, undivided

alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 37 % of this area

alluvium

Lithology: sand; silt; clay or mud; gravel

Terrace deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 11 % of this area

Terrace deposits

Carizzo Sand (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 2 % of this area

Carizzo Sand

Lithology: sandstone

Reklaw Formation (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 0.7 % of this area

Reklaw Formation

Lithology: sandstone; clay or mud

Queen City Sand (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 0.5 % of this area

Queen City Sand

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

Weches Formation

Lithology: sand; clay or mud

Alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers < 0.1 % 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