River and terrace complexes of the Texas Gulf Coast

Abstract

There are five river and terrace complexes along the Texas Gulf coast--the Trinity, Brazos, Colorado, Guadalupe, and San Antonio rivers and associated terraces--which were examined to determine differences in morphology of each complex in order to relate the differences to regional movement. By using the relations of the rivers and terraces, evidence has been found for the existence of local movement in a trough-arch-trough complex. The stable hinge area between the uplifting interior of Texas and the downwarping offshore area has also been located where the complexes cross it.