气候变化领域集成服务门户(CCPortal): Eruptive Cycle and Bubble Trap of Strokkur Geyser, Iceland

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DOI	10.1029/2020JB020769
	Eruptive Cycle and Bubble Trap of Strokkur Geyser, Iceland
	Eibl E.P.S.; Müller D.; Walter T.R.; Allahbakhshi M.; Jousset P.; Hersir G.P.; Dahm T.
发表日期	2021
ISSN	21699313
卷号	126 期号:4
英文摘要	The eruption frequency of geysers can be studied easily on the surface. However, details of the internal structure including possible water and gas filled chambers feeding eruptions and the driving mechanisms often remain elusive. We used a multidisciplinary network of seismometers, video cameras, water pressure sensors and one tiltmeter to study the eruptive cycle, internal structure, and mechanisms driving the eruptive cycle of Strokkur geyser in June 2018. An eruptive cycle at Strokkur always consists of four phases: (1) Eruption, (2) post-eruptive conduit refilling, (3) gas filling of the bubble trap, and (4) regular bubble collapse at shallow depth in the conduit. For a typical single eruption 19 ± 4 bubble collapses occur in Phase 3 and 8 ± 2 collapses in Phase 4 at a mean spacing of 1.52 ± 0.29 and 24.5 ± 5.9 s, respectively. These collapses release latent heat to the fluid in the bubble trap (Phase 3) and later to the fluid in the conduit (Phase 4). The latter eventually reaches thermodynamic conditions for an eruption. Single to sextuple eruptions have similar spacings between bubble collapses and are likely fed from the same bubble trap at 23.7 ± 4.4 m depth, 13–23 m west of the conduit. However, the duration of the eruption and recharging phase linearly increases likely due to a larger water, gas and heat loss from the system. Our tremor data provides documented evidence for a bubble trap beneath a pool geyser. © 2021. The Authors.
英文关键词	bubble trap; eruptive cycle; geyser; hydrothermal systems; source location; tremor
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187204
作者单位	Institute of Geosciences, University of Potsdam, Potsdam, Germany; GFZ German Research Centre for Geosciences, Potsdam, Germany; ISOR, Reykjavik, Iceland
推荐引用方式 GB/T 7714	Eibl E.P.S.,Müller D.,Walter T.R.,et al. Eruptive Cycle and Bubble Trap of Strokkur Geyser, Iceland[J],2021,126(4).
APA	Eibl E.P.S..,Müller D..,Walter T.R..,Allahbakhshi M..,Jousset P..,...&Dahm T..(2021).Eruptive Cycle and Bubble Trap of Strokkur Geyser, Iceland.Journal of Geophysical Research: Solid Earth,126(4).
MLA	Eibl E.P.S.,et al."Eruptive Cycle and Bubble Trap of Strokkur Geyser, Iceland".Journal of Geophysical Research: Solid Earth 126.4(2021).