Lava Domes (IMAGE) U.S. National Science Foundation Caption A fissure created in 1886 exposed the lava domes' interiors, opening them to sampling. Credit Kari Cooper 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.