Dartmouth Marcellus Shale Study (IMAGE) Dartmouth College Caption Mukul Sharma, a professor of earth sciences at Dartmouth College, and his colleagues are shedding light on the early chemical reactions in the organic sediments that would ultimately become the Marcellus Shale. Credit Loadmaster (David R. Tribble) Usage Restrictions Credit Loadmaster (David R. Tribble) 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.