Special Paper 494 cover (IMAGE) Geological Society of America Caption This is the cover of GSA Special Paper 494: New Perspectives on Rio Grande Rift Basins: From Tectonics to Groundwater. Credit Mark R. Hudson and V.J.S. (Tien) Grauch (editors) Usage Restrictions Credit GSA and editors 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.