Geologic units in Hunt county, Texas

Marlbrook Marl (Late Cretaceous; Gulfian Series) at surface, covers 18 % of this area

Marlbrook Marl

Terrace deposits (Pleistocene and Holocene) at surface, covers 13 % of this area

Terrace deposits

Neylandville Marl (Late Cretaceous; Gulfian Series) at surface, covers 13 % of this area

Neylandville Marl

Alluvium (Holocene) at surface, covers 11 % of this area

Alluvium

Ozan Formation (Late Cretaceous; Gulfian Series) at surface, covers 9 % of this area

Ozan Formation

Kincaid Formation (Paleocene) at surface, covers 8 % of this area

Kincaid Formation

Navarro Group, undivided (Late Cretaceous; Gulfian Series) at surface, covers 7 % of this area

Navarro Group, undivided

Nacatoch Sand (Late Cretaceous; Gulfian Series) at surface, covers 6 % of this area

Nacatoch Sand

Kemp clay and Corsicana Marl, undivided (Late Cretaceous; Gulfian Series) at surface, covers 4 % of this area

Kemp clay and Corsicana Marl, undivided

Pecan Gap Chalk (Late Cretaceous; Gulfian Series) at surface, covers 4 % of this area

Pecan Gap Chalk

Wolfe City Formation (Late Cretaceous; Gulfian Series) at surface, covers 3 % of this area

Wolfe City Formation

Quaternary deposit, undivided (Quaternary) at surface, covers 2 % of this area

Quaternary deposit, undivided

Wills Point Formation (Paleocene) at surface, covers 1 % of this area

Wills Point Formation

Kemp clay (Late Cretaceous; Gulfian Series) at surface, covers 0.8 % of this area

Kemp clay

Gober Chalk and Roxton Limestone (Late Cretaceous; Gulfian Series) at surface, covers 0.1 % of this area

Gober Chalk and Roxton Limestone