Collected samples from drilling (IMAGE) University of Göttingen Caption Die helle Vulkanasche-Schicht, eingebettet zwischen feinschichtigen Seetonen der intensiv bearbeiteten Forschungsbohrung Nördlingen 1973. Credit Gernot Arp, Universitaet Goettingen 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.