Journal
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
Volume 300, Issue -, Pages 70-80Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jvolgeores.2014.12.005
Keywords
SO2 camera; Volcanic outgassing; SO2 emissions; Low-frequency seismicity; Kilauea Volcano; Gas pistoning
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Funding
- Sigma Xi, The Scientific Research Society
- Michigan Space Grant Consortium
- Michigan Technological University
- NSF [PIRE 0530109]
- American Museum of Natural History
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SO2 camera measurements at Kilauea Volcano, Hawaii, in May of 2010 captured two occurrences of lava lake rise and fall within the Halema'um'au Crater summit vent During high lava stands we observed diminished SO2 emission rates and decreased seismic tremor. Similar events at Kilauea have been described as the result of sporadic degassing following gas accumulation beneath a mostly impermeable lava lake surface. Incorporation of SO2 camera data into a multi-parameter dataset gives credence to the likelihood of shallow gas accumulation as the cause of these high stand events, with accumulated gas release upon lake-level drop compensating for the gas deficit reached during accumulation. (C) 2014 Elsevier B.V. All rights reserved.
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