“Geologic Wonders Of West Texas”
Abridged Chapters 7-10
Donald P. McGookey
Volcanism across the Trans-Pecos Region of West Texas
Volcanism in the Trans-Pecos region of West Texas was limited to the period from 48 to 17 m.y. ago (late Eocene to Early Miocene times.) During this time volcanism was nearly continuous, but varied considerably in location, style, composition, volume and tectonic setting (Henry and McDowell, 1986).