Sampling The Deccan Traps To Show That Volcanoes Helped Kill The Dinosaurs (image) Princeton University Share Print E-Mail Caption Researchers collect a sample from a very thin sediment horizon between two lava flows. By sampling the layers between layers of the Deccan Traps flood basalt, a team of researchers led by Princeton University's Blair Schoene and Gerta Keller found that the Deccan Traps erupted in four distinct pulses, one of which began just before the mass extinction that killed the (non-avian) dinosaurs. From left: Valentin Sordet, a former master's student at the University of Lausanne; Kyle Samperton, a 2017 Princeton graduate alumnus; and Maricela Coronado of the Princeton University Class of 2015. Credit Blair Schoene, Department of Geosciences, Princeton University Usage Restrictions Editorial use only Share Print E-Mail 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.