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Hawaiian Volcano Observatory field geologists track activity at fissure 8 (pictu

By Volcano Hazards Program
image related to volcanoes. See description
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Detailed Description

Hawaiian Volcano Observatory field geologists track activity at fissure 8 (pictured in the background). Crews collect fissure 8 tephra (Pele's hair, pumice, and other lightweight volcanic glass fragments) for geochemical analyses and characterization of changes in lava fountain behavior.

Sources/Usage

Public Domain.