Hydrothermal hexahydrite spherules erupted during the 2008–2010 summit eruption of Kīlauea Volcano, Hawai`i

Small (1–3 mm), hollow spherules of hexahydrite have been collected falling out of the magmatic gas plume downwind of Kīlauea’s summit vent. The spherules were observed on eight separate occasions during 2009–2010 when a lake of actively spattering lava was present ~150–200 m below the rim of the ve...

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Published in:Bulletin of volcanology 2011-11, Vol.73 (9), p.1369-1375
Main Authors: Hon, Ken, Orr, Tim
Format: Article
Language:English
Subjects:
Crystalline rocks
Earth and Environmental Science
Earth Sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
Geology
Geophysics/Geodesy
Igneous and metamorphic rocks petrology, volcanic processes, magmas
Lakes
Lava
Magma
Meteoric water
Mineralogy
Minerals
Natural hazards: prediction, damages, etc
Particulate matter
Research Article
Sedimentology
Sulfates
Volcanoes
Volcanology
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description Small (1–3 mm), hollow spherules of hexahydrite have been collected falling out of the magmatic gas plume downwind of Kīlauea’s summit vent. The spherules were observed on eight separate occasions during 2009–2010 when a lake of actively spattering lava was present ~150–200 m below the rim of the vent. The shells of the spherules have a fine bubbly foam structure less than 0.1 mm thick, composed almost entirely of hexahydrite [MgSO 4 ·6H 2 O] Small microspherules of lava (
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source Springer Nature
subjects Crystalline rocks
Earth and Environmental Science
Earth Sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
Geology
Geophysics/Geodesy
Igneous and metamorphic rocks petrology, volcanic processes, magmas
Lakes
Lava
Magma
Meteoric water
Mineralogy
Minerals
Natural hazards: prediction, damages, etc
Particulate matter
Research Article
Sedimentology
Sulfates
Volcanoes
Volcanology
title Hydrothermal hexahydrite spherules erupted during the 2008–2010 summit eruption of Kīlauea Volcano, Hawai`i
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