Wetland Excavation and Model (IMAGE) University of Texas at Austin Caption Gield excavation face and photos of the fields and canals excavation faces (Upper) and the model of formation for these wetland complexes (Lower). Credit Image courtesy of T. Beach et al. (University of Texas at Austin, Austin, Texas) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.