IDDP (image) University of California - Riverside Share Print E-Mail Caption This image shows a flow test of the IDDP-1 well at Krafla. Note the transparent superheated steam at the top of the rock muffler. Credit Kristján Einarsson. 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.