Icelandic Ice Cauldron (image) University of Texas at Austin Share Print E-Mail Caption Volcanic eruptions beneath ice can create surface formations called 'ice cauldrons,' such as this one that formed in Iceland's Vatnajökull ice cap. The research suggests that a strangely-shaped depression on Mars could be an ice cauldron. Credit Oddur Sigurðsson/Icelandic Meteorological Office Usage Restrictions None 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.