Study Shows Diamonds Aren't Forever (IMAGE) Tulane University Caption Sarah Jaye Oliva, right, a Tulane University PhD student, works with Amani Laizer, a University of Dar-es-Salaam student, to make soil gas measurements in Tanzania in 2018. CO2 gas is flowing from a fissure where molten rock moved up a crack in the Earth's crust after a Magnitude 5.9 earthquake and the Oldoinyo Lengai volcano (background) erupted in 2007. Maasai pastoralists (middle ground) also observe. Credit James Muirhead 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.