weathered bedrock (IMAGE) The University of Hong Kong Caption A 3-dimensional view of weathered bedrock shows the exposure of Fe-rich red rocks beneath Fe-depleted blue-toned rocks in a crater wall. Credit The University of Hong Kong 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.