| State | Texas |
|---|---|
| Name | Black Gap area volcanic rocks |
| Geologic age | Miocene |
| Lithologic constituents | Major
Igneous > Volcanic > Mafic-volcanic > Basalt (Flow)
|
| Comments | extrusive igneous rocks on Emory Peak-Presidio Sheet (1979) southeast Brewster Co. east of Big Bend Natl Park |
| References | Bureau of Economic Geology, 1979, Emory Peak--Presidio Sheet, Geologic Atlas of Texas, University of Texas at Austin.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 | Brewster - Presidio |