Origin of Sample in Pozzuoli Bay (image) DOE/Lawrence Berkeley National Laboratory Caption Pozzuoli Bay lies at the northwestern corner of the Bay of Naples. The concrete sample examined at the Advanced Light Source by Berkeley researchers, BAI.06.03, is from the harbor of Baiae, one of many ancient underwater sites in the region. Black lines indicate caldera rims, and red areas are volcanic craters. Credit Lawrence Berkeley National Laboratory and University of California at Berkeley Usage Restrictions with credit as given 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.