Upper Rio Mendoza (IMAGE) University of Texas at Austin Caption The Upper Rio Mendoza eroding into zircon fertile igneous bedrock and delivering the sediment into the lowlands of Argentina wine country. Credit Ryan McKenzie Usage Restrictions credit 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.