Geologic units in Medina county, Texas

Additional scientific data in this geographic area

Leona Formation (Pleistocene) at surface, covers 20 % of this area

Leona Formation

Uvalde Gravel (Pliocene to Pleistocene) at surface, covers 12 % of this area

Uvalde Gravel

Wilcox Group, undivided (Paleocene to Eocene) at surface, covers 11 % of this area

Wilcox Group, undivided

Devils River Limestone (Early Cretaceous; Comanchean Series) at surface, covers 10 % of this area

Devils River Limestone

Edwards Limestone (Early Cretaceous) at surface, covers 8 % of this area

Edwards Limestone

Escondido Formation (Late Cretaceous; Gulfian Series) at surface, covers 8 % of this area

Escondido Formation

Carizzo Sand (Eocene) at surface, covers 8 % of this area

Carizzo Sand

Glen Rose Limestone (Early Cretaceous) at surface, covers 6 % of this area

Glen Rose Limestone

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

Austin Chalk

Midway Group, undivided (Paleocene) at surface, covers 3 % of this area

Midway Group, undivided

Terrace deposits (Pleistocene and Holocene) at surface, covers 3 % of this area

Terrace deposits

Anacacho Limestone (Late Cretaceous; Gulfian Series) at surface, covers 2 % of this area

Anacacho Limestone; North, central, and south Texas including Quaternary for all of west Texas.

Buda Limestone and Del Rio Clay, undivided (Late Cretaceous) at surface, covers 2 % of this area

Buda Limestone and Del Rio Clay, undivided; Eastern part of Trans-Pecos and High Plains and Western part of Trans-Pecos and North, central, and south Texas including Quaternary for all of west Texas.

Quaternary deposit, undivided (Quaternary) at surface, covers 0.9 % of this area

Quaternary deposit, undivided

Pecan Gap Chalk (Late Cretaceous; Gulfian Series) at surface, covers 0.8 % of this area

Pecan Gap Chalk

Alluvium (Holocene) at surface, covers 0.6 % of this area

Alluvium

Eagle Ford Formation (Late Cretaceous) at surface, covers 0.3 % of this area

Eagle Ford Formation

Reklaw Formation (Eocene) at surface, covers 0.2 % of this area

Reklaw Formation