Retallack Figure 5 (image) Geological Society of America Caption This is a saprock-bedrock boundary at water table in coastal rock platform at Sunset Bay (A) and alluvial rock platform at Days Creek (B), Ore. Credit G. Retallack and J. Roering. Usage Restrictions Discuss use with authors. 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.