| DOI: | 10.1002/2015GL067012
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| 论文题名: | Transient seafloor venting on continental slopes from warming-induced methane hydrate dissociation |
| 作者: | Darnell K.N.; Flemings P.B.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8321
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| EISSN: | 1944-8052
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| 出版年: | 2015
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| 卷: | 42, 期:24 | | 起始页码: | 10765
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| 结束页码: | 10772
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| 语种: | 英语
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| 英文关键词: | hydrate
; venting
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| Scopus关键词: | Carbon
; Climate change
; Dissociation
; Hydrates
; Hydration
; Methane
; Submarine geology
; Carbon reservoirs
; Hydrate dissociation
; Hydrate formation
; Hydrate stabilities
; Marine hydrate deposits
; Methane hydrate dissociation
; Multi-phase flow models
; Venting
; Gas hydrates
; carbon
; climate change
; continental slope
; flow modeling
; hydration
; marine sediment
; methane
; multiphase flow
; seafloor
; seepage
; venting
; warming
; Atlantic Ocean
; Atlantic Ocean (East)
|
| 英文摘要: | Methane held in frozen hydrate cages within marine sediment comprises one of the largest carbon reservoirs on the planet. Recent submarine observations of widespread methane seepage may record hydrate dissociation due to oceanic warming, which consequently may further amplify climate change. Here we simulate the effect of seafloor warming on marine hydrate deposits using a multiphase flow model. We show that hydrate dissociation, gas migration, and subsequent hydrate formation cangenerate temporary methane venting into the ocean through the hydrate stability zone. Methane seeps venting through the hydrate stability zone on the eastern Atlantic margin may record this process due to warming begun thousands of years ago. Our results contrast with the traditional view that venting occurs only updip of the hydrate stability zone. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955205272&doi=10.1002%2f2015GL067012&partnerID=40&md5=014320c3192b44c7b27a82902d39f767
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7937
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| 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: | Department of Geological Sciences, University of Texas at Austin, Austin, TX, United States
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| Recommended Citation: | |
Darnell K.N.,Flemings P.B.. Transient seafloor venting on continental slopes from warming-induced methane hydrate dissociation[J]. Geophysical Research Letters,2015-01-01,42(24).
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