Hydrothermal vent precipitates (IMAGE) RIKEN Caption a) Photograph of HV precipitates collected from the Shinkai Seep Field. b) Cross-polarized optical microscope images of precipitates in cross section. c,d) Scanning electron images showing layers within the precipitates. f) Magnification showing sublayers in the boxed area of d. Credit RIKEN Usage Restrictions None License Original 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.