Rocks Studied by Crowe and Colleagues (IMAGE) University of British Columbia Caption This image shows some of the rocks that Sean Crowe and his colleagues studied. Credit Nic Beukes Usage Restrictions Please credit Nic Beukes 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.