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Glassy, granular fragments of volcanic rock from Gakkel Ridge seafloor.

Glassy, granular fragments of volcanic rock from Gakkel Ridge seafloor.
Glassy, granular fragments of volcanic rock from Gakkel Ridge seafloor.
Glassy, granular fragments of volcanic rock from Gakkel Ridge seafloor.
Glassy, granular fragments of volcanic rock from Gakkel Ridge seafloor.
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Soule, Adam and Willis, Claire
Glassy, granular fragments of volcanic rock from Gakkel Ridge seafloor.
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07/01/2007
volcanic glass.jpg
Date is approximate.
Caption from Oceanus magazine, Vol. 46, No. 3, Pg. 8:
These glassy, granular fragments of volcanic rock provided key evidence that volcanoes on the Arctic Ocean seafloor had exploded violently. Such fragments are typically formed when steam and carbon dioxide gas build up inside volcanoes to produce explosive eruptions.
Photo by Adam Soule and Claire Willis
Copyright © Woods Hole Oceanographic Institution
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