The tangled tale of Kīlauea’s 2018 eruption as told by geochemical monitoring
Changes in magma chemistry that affect eruptive behavior occur during many volcanic eruptions, but typical analytical techniques are too slow to contribute to hazard monitoring. We used rapid energy-dispersive x-ray fluorescence analysis to measure diagnostic elements in lava samples within a few ho...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2019-12, Vol.366 (6470), p.1212-1212 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Gansecki, Cheryl Lee, R. Lopaka Shea, Thomas Lundblad, Steven P. Hon, Ken Parcheta, Carolyn |
| description | Changes in magma chemistry that affect eruptive behavior occur during many volcanic eruptions, but typical analytical techniques are too slow to contribute to hazard monitoring. We used rapid energy-dispersive x-ray fluorescence analysis to measure diagnostic elements in lava samples within a few hours of collection during the 2018 Kīlauea eruption. The geochemical data provided important information for field crews and civil authorities in advance of changing hazards during the eruption. The appearance of hotter magma was recognized several days before the onset of voluminous eruptions of fast-moving flows that destroyed hundreds of homes. We identified, in near real-time, interactions between older, colder, stored magma-including the unexpected eruption of andesite-and hotter magma delivered during dike emplacement. |
| doi_str_mv | 10.1126/science.aaz0147 |
| format | Article |
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Lopaka ; Shea, Thomas ; Lundblad, Steven P. ; Hon, Ken ; Parcheta, Carolyn</creator><creatorcontrib>Gansecki, Cheryl ; Lee, R. Lopaka ; Shea, Thomas ; Lundblad, Steven P. ; Hon, Ken ; Parcheta, Carolyn</creatorcontrib><description>Changes in magma chemistry that affect eruptive behavior occur during many volcanic eruptions, but typical analytical techniques are too slow to contribute to hazard monitoring. We used rapid energy-dispersive x-ray fluorescence analysis to measure diagnostic elements in lava samples within a few hours of collection during the 2018 Kīlauea eruption. The geochemical data provided important information for field crews and civil authorities in advance of changing hazards during the eruption. The appearance of hotter magma was recognized several days before the onset of voluminous eruptions of fast-moving flows that destroyed hundreds of homes. We identified, in near real-time, interactions between older, colder, stored magma-including the unexpected eruption of andesite-and hotter magma delivered during dike emplacement.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.aaz0147</identifier><identifier>PMID: 31806782</identifier><language>eng</language><publisher>United States: American Association for the Advancement of Science</publisher><subject>Andesite ; Basalt ; Calderas ; Chemical analysis ; Chemistry ; Collapse ; Collection ; Composition ; Cracks ; Crystals ; Data transmission ; Diagnostic systems ; Drainage ; Fluorescence ; Geochemistry ; Geophysics ; Geothermometers ; Hazard assessment ; Lava ; Lava flows ; Low temperature ; Magma ; Mathematical analysis ; Minerals ; Monitoring ; Olivine ; Organic chemistry ; Physical properties ; RESEARCH ARTICLE SUMMARY ; Risk reduction ; Trace elements ; Viscosity ; Volcanic eruptions ; Volcanoes ; X-ray fluorescence</subject><ispartof>Science (American Association for the Advancement of Science), 2019-12, Vol.366 (6470), p.1212-1212</ispartof><rights>Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. 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| ispartof | Science (American Association for the Advancement of Science), 2019-12, Vol.366 (6470), p.1212-1212 |
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| source | American Association for the Advancement of Science |
| subjects | Andesite Basalt Calderas Chemical analysis Chemistry Collapse Collection Composition Cracks Crystals Data transmission Diagnostic systems Drainage Fluorescence Geochemistry Geophysics Geothermometers Hazard assessment Lava Lava flows Low temperature Magma Mathematical analysis Minerals Monitoring Olivine Organic chemistry Physical properties RESEARCH ARTICLE SUMMARY Risk reduction Trace elements Viscosity Volcanic eruptions Volcanoes X-ray fluorescence |
| title | The tangled tale of Kīlauea’s 2018 eruption as told by geochemical monitoring |
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