GSA Special Paper 445 (IMAGE) Geological Society of America Caption GSA Special Paper 445 -- Deformation and Exhumation at Convergent Margins: The Franciscan Subduction Complex, by Uwe Ring. Credit Geological Society of America 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.