Distribution of Insoluble Material (image) University of Miami Rosenstiel School of Marine & Atmospheric Science Share Print E-Mail Caption Distribution of insoluble material in the sediments and collection sites are shown. The insoluble material is derived from atmospheric dust. Credit Peter Swart, Ph.D., UM Rosenstiel School of Marine and Atmospheric Science 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.