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Image #   28611D
Name:   Volcanic ash
Copyright:   Copyright 2008 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Silica (glass) ash particles formed from a volcanic eruption. On March 24, 2008, at Volcanoes National Park (Big Island, Hawai'i), an explosive ash-laden eruption occurred at Halema'uma'u crater (inside Kilauea crater). The eruption was primarily gas, steam, and ash. A 100 foot diameter vent created in an explosive eruption on March 19, 2008 now actively releases gas, steam and ash within the park. Shown in this image is a larger ash particle composed of many tiny pieces of pulverized rock / ash from this eruption. Volcanic ash can be carried for many miles by wind blowing across the crater area. The lava from Hawaii's active volcano contains over 60% silica (glass).
Magnification*: x400
Type: SEM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   28611D 12.01.08 airborne particulate airborne particulates particulate particulates mineral lava glass silica gas pumice Pele volcanic Hawaii basalt SEM tephra lava ash lava rock lava tephra pumice lava ash eruption explosive eruption gas eruption Halema'uma'u crater Halemaumau crater Kilauea crater steam eruption gas vent Hawai'i volcano Hawaii volcano lava vent steam vent volcanic emission volcanic emissions Volcanoes National Park Hawaii Hawaii Volcanoes National Park volcanic ash volcanic rock volcano ash ash particle ash particles glass ash particles pulverized lava ash volcanic ash particle volcanic ash particles ash emission ash emissions ash-laden plume ash laden ash-rich plume ash rich plume Kilauea caldera rock dust tephra volcanic ash tephra volcanic dust tephra ash tephra volcano ash volcano dust

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