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Geologic units in Cass county, Texas

Weches Formation (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 33 % of this area

Weches Formation

Lithology: sand; clay or mud

Reklaw Formation (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 19 % of this area

Reklaw Formation

Lithology: sandstone; clay or mud

Wilcox Group, undivided (Phanerozoic | Cenozoic | Tertiary | Paleocene Eocene) at surface, covers 18 % of this area

Wilcox Group, undivided

Terrace deposits (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 13 % of this area

Terrace deposits

alluvium (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 10 % of this area

alluvium

Lithology: sand; silt; clay or mud; gravel

Sparta Sand (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 6 % of this area

Sparta Sand

Queen City Sand (Phanerozoic | Cenozoic | Tertiary | Eocene) at surface, covers 1 % of this area

Queen City Sand