Press release illustation (IMAGE) Newcastle University Caption Researchers were able to simulate some of the key conditions of subsurface rock fracturing using vials in the lab. Rocks representative of oceanic and continental crust were crushed under nitrogen, added to oxygen-free water, then heated. Credit Jon Telling / Jordan Stone / Newcastle University Usage Restrictions Only to be used when reporting the research that this press release relates to. License Original 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.