Geologic units in Navarro county, Texas

Wills Point Formation (Paleocene) at surface, covers 18 % of this area

Wills Point Formation

Alluvium (Holocene) at surface, covers 17 % of this area

Alluvium

Neylandville and Marlbrook Marls, undivided (Late Cretaceous; Gulfian Series) at surface, covers 15 % of this area

Neylandville and Marlbrook Marls, undivided

Wolfe City Formation (Late Cretaceous; Gulfian Series) at surface, covers 14 % of this area

Wolfe City Formation

Terrace deposits (Pleistocene and Holocene) at surface, covers 12 % of this area

Terrace deposits

Nacatoch Sand (Late Cretaceous; Gulfian Series) at surface, covers 7 % of this area

Nacatoch Sand

Kemp clay and Corsicana Marl, undivided (Late Cretaceous; Gulfian Series) at surface, covers 5 % of this area

Kemp clay and Corsicana Marl, undivided

Wilcox Group, undivided (Paleocene to Eocene) at surface, covers 4 % of this area

Wilcox Group, undivided

Ozan Formation (Late Cretaceous; Gulfian Series) at surface, covers 4 % of this area

Ozan Formation

Hooper Formation (Paleocene) at surface, covers 2 % of this area

Hooper Formation

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

Kincaid Formation

Kemp clay (Late Cretaceous; Gulfian Series) at surface, covers 1 % of this area

Kemp clay

Quaternary deposit, undivided (Quaternary) at surface, covers < 0.1 % of this area

Quaternary deposit, undivided