Architecture of a Seismic-Scale Normal Fault Zone: The Hidden Valley Fault, Canyon Lake Gorge, Texas.

Session Chairs:
David Ferrill, Adam Cawood

This field trip focuses on fault zone architecture and deformation processes in the seismic-scale Hidden Valley fault zone at Canyon Lake Gorge, part of the Balcones fault system. Located approximately one hour from San Antonio, Texas, this is an exceptionally well-exposed site to observe fault and fracture networks in mechanically layered carbonates of the Cretaceous Glen Rose Formation. The Hidden Valley fault zone has provided a study area for deformation analyses for over two decades and is an excellent analog for deformation and fluid flow in mechanically layered reservoirs and aquifers. Cost includes transportation (mini vans), entrance fees, lunch, snacks, and water.