U.S. Geological Survey

Slide 37 37. Schematic depiction of what was shown in the previous slide. Field examination showed that the venting took place onto a paleosol. The sediment in the dike was gravelly near the base. Some source beds that liquefied in the region contained as much as 30 to 40 percent gravel.


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THUMBNAIL INDEX

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Last revised November 24, 1998

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