Leona Formation

Leona Formation
State Texas
Name Leona Formation
Geologic age Pleistocene
Lithologic constituents
Major
Unconsolidated > Fine-detrital (Fluvial)
Unconsolidated > Coarse-detrital (Fluvial)
Comments Fluvatile terrace deposits of gravel, sand, silt, and clay on first wide terrrace of Nueces and Leona Rivers below the level of Uvalde Formation. Leona may correlate with Onion Creek Marl of Austin Sheet.
References

Bureau of Economic Geology, 1974, San Antonio Sheet, Geologic Atlas of Texas, University of Texas, Bureau of Economic Geology, scale 1:250,000.

Bureau of Economic Geology, 1974, Seguin Sheet, Geologic Atlas of Texas, University of Texas, Bureau of Economic Geology, scale 1:250,000.

Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000.

NGMDB product
Counties Bexar - Caldwell - Comal - Culberson - Frio - Guadalupe - Hays - Karnes - Kinney - Maverick - Medina - Reeves - Uvalde - Wilson - Winkler - Zavala