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DOI | 10.1126/science.aal4500 |
Massive blow-out craters formed by hydrate-controlled methane expulsion from the Arctic seafloor | |
Andreassen, K.1; Hubbard, A.1; Winsborrow, M.1; Patton, H.1; Vadakkepuliyambatta, S.1; Plaza-Faverola, A.1; Gudlaugsson, E.1; Serov, P.1; Deryabin, A.2; Mattingsdal, R.2; Mienert, J.1; Bunz, S.1 | |
2017-06-02 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 356期号:6341页码:948-952 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway |
英文摘要 | Widespread methane release from thawing Arctic gas hydrates is a major concern, yet the processes, sources, and fluxes involved remain unconstrained. We present geophysical data documenting a cluster of kilometer-wide craters and mounds from the Barents Sea floor associated with large-scale methane expulsion. Combined with ice sheet/gas hydrate modeling, our results indicate that during glaciation, natural gas migrated from underlying hydrocarbon reservoirs and was sequestered extensively as subglacial gas hydrates. Upon ice sheet retreat, methane from this hydrate reservoir concentrated in massive mounds before being abruptly released to form craters. We propose that these processes were likely widespread across past glaciated petroleum provinces and that they also provide an analog for the potential future destabilization of subglacial gas hydrate reservoirs beneath contemporary ice sheets. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402552300033 |
WOS关键词 | NORTHERN BARENTS SEA ; FOCUSED FLUID-FLOW ; ICE-SHEET ; GAS HYDRATE ; GLACIATION ; SVALBARD ; LEAKAGE ; MEXICO ; SHELF ; BASIN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196177 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.UiT, Ctr Arctic Gas Hydrate Environm & Climate CAGE, Dept Geosci, N-9037 Tromso, Norway; 2.Norwegian Petr Directorate, Harstad, Norway |
推荐引用方式 GB/T 7714 | Andreassen, K.,Hubbard, A.,Winsborrow, M.,et al. Massive blow-out craters formed by hydrate-controlled methane expulsion from the Arctic seafloor[J]. SCIENCE,2017,356(6341):948-952. |
APA | Andreassen, K..,Hubbard, A..,Winsborrow, M..,Patton, H..,Vadakkepuliyambatta, S..,...&Bunz, S..(2017).Massive blow-out craters formed by hydrate-controlled methane expulsion from the Arctic seafloor.SCIENCE,356(6341),948-952. |
MLA | Andreassen, K.,et al."Massive blow-out craters formed by hydrate-controlled methane expulsion from the Arctic seafloor".SCIENCE 356.6341(2017):948-952. |
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