DOI: 10.1002/2014GL062603
论文题名: Long-term explosive degassing and debris flow activity at West Mata submarine volcano
作者: Dziak R.P. ; Bohnenstiehl D.R. ; Baker E.T. ; Matsumoto H. ; Caplan-Auerbach J. ; Embley R.W. ; Merle S.G. ; Walker S.L. ; Lau T.-K. ; Chadwick W.W. ; Jr.
刊名: Geophysical Research Letters
ISSN: 0094-8901
EISSN: 1944-8632
出版年: 2015
卷: 42, 期: 5 起始页码: 1480
结束页码: 1487
语种: 英语
英文关键词: debris
; degassing
; eruption
; submarine
Scopus关键词: Debris
; Explosives
; Hydrophones
; Optical data processing
; Submarines
; Turbidity
; Volcanoes
; Acoustic signature
; Debris flow activities
; Effusive eruptions
; Eruption
; Explosive Degassing
; Optical measurement
; Submarine volcano
; Turbidity maxima
; Degassing
; debris flow
; degassing
; explosive
; hydrophone
; long-term change
; slope failure
; submarine volcano
; volcanic eruption
英文摘要: West Mata is a 1200 m deep submarine volcano where explosive boninite eruptions were observed in 2009. The acoustic signatures from the volcano's summit eruptive vents Hades and Prometheus were recorded with an in situ (~25 m range) hydrophone during ROV dives in May 2009 and with local (~5 km range) moored hydrophones between December 2009 and August 2011. The sensors recorded low frequency (1-40 Hz), short duration explosions consistent with magma bubble bursts from Hades, and broadband, 1-5 min duration signals associated with episodes of fragmentation degassing from Prometheus. Long-term eruptive degassing signals, recorded through May 2010, preceded a several month period of declining activity. Degassing episodes were not recorded acoustically after early 2011, although quieter effusive eruption activity may have continued. Synchronous optical measurements of turbidity made between December 2009 and April 2010 indicate that turbidity maxima resulted from occasional south flank slope failures triggered by the collapse of accumulated debris during eruption intervals. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925847324&doi=10.1002%2f2014GL062603&partnerID=40&md5=8aab0d6946f95dc9c889ee45867ef36f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8517
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Cooperative Institute for Marine Resource Studies, Oregon State University, NOAA/Pacific Marine Environmental Laboratory, Newport, OR, United States
Recommended Citation:
Dziak R.P.,Bohnenstiehl D.R.,Baker E.T.,et al. Long-term explosive degassing and debris flow activity at West Mata submarine volcano[J]. Geophysical Research Letters,2015-01-01,42(5).