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This Earth science resource illustrates the sources of ocean sedimentation along coasts, on the ocean floor, and at hydrothermal vents. Students click on these ocean locations to see examples of the formation of hydrogenous, biogenous, and terrigenous sediments. For each sediment type, the resource provides two enlargeable images. When enlarged, each image is accompanied by descriptive text. For example, the hydrogenous sediments are represented by a close-up view of ferromanganese nodules, as well as a cross-section that shows their layered structure. Other images in the resource include a satellite view of the extent of terrigenous sedimentation and a picture of biogenous sediments forming marine snow. Copyright 2005 Eisenhower National Clearinghouse
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