Deep-Lake Coring (IMAGE) Brown University Caption Brown-led researchers and staff take cores from Lake Tanganyika, the world's second-deepest lake. Each core was 8 m (26 feet) long and taken at depths of 650 m (2,133 feet). The cores were collected in 2004 as part of the Nyanza Project and were analyzed in 2006 and 2007. Credit The Nyanza Project, University of Arizona 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.