BERNHARD EDMAIER / SCIENCE PHOTO LIBRARY BERNHARD EDMAIER / SCIENCE PHOTO LIBRARY
Volcanologists. View of volcanologists sampling sulphur deposits around the crater of an active volcano. Elemental sulphur is deposited around volcanic vents as sulphur-containing gases condense out onto the rocks. Studying the composition of the gases and condensates may provide important clues about the activity of a volcano. This is the Mutnovsky volcano on the Kamchatka peninsula, Russia.
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