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Geologic units in Panola county, Texas

Wilcox Group, undivided (Paleocene to Eocene) at surface, covers 67 % of this area

Wilcox Group, undivided

Alluvium (Holocene) at surface, covers 23 % of this area

Alluvium

Terrace deposits (Pleistocene and Holocene) at surface, covers 7 % of this area

Terrace deposits

Carizzo Sand (Eocene) at surface, covers 2 % of this area

Carizzo Sand

Reklaw Formation (Eocene) at surface, covers 0.4 % of this area

Reklaw Formation

Queen City Sand (Eocene) at surface, covers 0.3 % of this area

Queen City Sand

Weches Formation (Eocene) at surface, covers < 0.1 % of this area

Weches Formation

Alluvium (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.