Maitan Figure 3 (IMAGE) Geological Society of America Caption Relative Elevation Model of the floodplain of the Purus River, South America. Example of low OHV with prevalent neck cutoff. Credit Riccardo Maitan Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.