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- Texas geologic units
Geologic units in Wilson county, Texas
Queen City Sand
(Eocene) at surface, covers 26 % of this area Queen City Sand
Yegua Formation
(Middle Eocene) at surface, covers 13 % of this area Yegua Formation
Carizzo Sand
(Eocene) at surface, covers 11 % of this area Carizzo Sand
Terrace deposits
(Pleistocene and Holocene) at surface, covers 10 % of this area Terrace deposits
Leona Formation
(Pleistocene) at surface, covers 5 % of this area Leona Formation
Sparta Sand
(Eocene) at surface, covers 4 % of this area Sparta Sand
Alluvium
(Holocene) at surface, covers 2 % of this area Alluvium
Cadell Formation
(Eocene) at surface, covers 0.5 % of this area Cadell Formation
Whitsett Formation
(Oligocene and Eocene) at surface, covers < 0.1 % of this area Whitsett Formation