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Calcareous and Siliceous Ooze

Although deep-sea ooze looks like clay, a microscope photo reveals that it is made mostly of shells of tiny marine organisms, including foraminifera (calcium carbonate) and radiolaria (silica). The shells record short- and long-term changes in Earth's climate. Hole 884E: 145-884E-2W-2

Group: Sedimentary
Loaned by Ocean Drilling Program
Locality: near northernmost Emperor Seamount , NA


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Smithsonian National Museum of Natural History Department of Mineral Sciences website Credits