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Lake sediment coring operation with collaborating scientists from Mt. Holyoke College, and Northern Arizona Univeristy using a modified Nesje percussion coring system. PVC tubing is fully filled with lake bottom sediment. Here we are coing Bear Lake, 35 km east of Redoubt vocano, trying to recover a tephra (volcanic ash) record from Cook Inlet Volcanoes

Lake sediment coring operation with collaborating scientists from Mt. Holyoke College, and Northern Arizona Univeristy using a modified Nesje percussion coring system. PVC tubing is fully filled with lake bottom sediment. Here we are coing Bear Lake, 35 km east of Redoubt vocano, trying to recover a tephra (volcanic ash) record from Cook Inlet Volcanoes

Date: Aug 12th, 2005
Volcano(es): Redoubt
Photographer: Wallace, K. L.
URL: avo.alaska.edu/image/view/3217
Image courtesy of AVO / U.S. Geological Survey.
Please cite the photographer and the Alaska Volcano Observatory/U.S. Geological Survey when using this image.
Full Resolution.