Disturbance of deep-sea environments induced by the M9.0 Tohoku Earthquake.
Disturbance of deep-sea environments induced by the M9.0 Tohoku Earthquake.
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DOI：
10.1038/srep00270
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发表时间：
2012
影响因子：
4.6
通讯作者：
Takai, Ken
中科院分区：
文献类型：
--
作者：
Kawagucci, Shinsuke;Yoshida, Yukari T.;Noguchi, Takuroh;Honda, Makio C.;Uchida, Hiroshi;Ishibashi, Hidenori;Nakagawa, Fumiko;Tsunogai, Urumu;Okamura, Kei;Takaki, Yoshihiro;Nunoura, Takuro;Miyazaki, Junichi;Hirai, Miho;Lin, Weiren;Kitazato, Hiroshi;Takai, Ken
M9.0东北地震对深海环境的影响在事件发生后36天和98天进行了调查。 36天后，由于新鲜海底沉积物的湍流扩散，与潜在的海底位移相协调，深海水中的光透射异常在海沟轴附近变得非典型地更大（~35%）和更广泛（厚度~1500 m）。除了与沉积物扩散相关的化学物质流入外，还估计了来自海底深处储层的富含 13C 的甲烷的流入。这种同位素异常的甲烷流入可能是由地震及其余震引发的，随后引发了海底水文地质结构的变化。事件发生后 36 天和 98 天，深海微生物群落中的整个原核生物量和特定系统发育型的发展可能分别上升和下降。我们可以捕捉到地震后深海化学和微生物群落反应中扰动的快照。
The impacts of the M9.0 Tohoku Earthquake on deep-sea environment were investigated 36 and 98 days after the event. The light transmission anomaly in the deep-sea water after 36 days became atypically greater (∼35%) and more extensive (thickness ∼1500 m) near the trench axis owing to the turbulent diffusion of fresh seafloor sediment, coordinated with potential seafloor displacement. In addition to the chemical influx associated with sediment diffusion, an influx of 13C-enriched methane from the deep sub-seafloor reservoirs was estimated. This isotopically unusual methane influx was possibly triggered by the earthquake and its aftershocks that subsequently induced changes in the sub-seafloor hydrogeologic structures. The whole prokaryotic biomass and the development of specific phylotypes in the deep-sea microbial communities could rise and fall at 36 and 98 days, respectively, after the event. We may capture the snap shots of post-earthquake disturbance in deep-sea chemistry and microbial community responses.
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影响因子：
64.8
作者：
Elkhoury, Jean E.;Brodsky, Emily E.;Agnew, Duncan C.
通讯作者：
Agnew, Duncan C.
DOI：
10.2183/pjab/83.199
发表时间：
2007-10-01
影响因子：
3.1
作者：
Gamo, Toshitaka;Okamura, Kei;Asakawa, Kenichi
通讯作者：
Asakawa, Kenichi
DOI：
10.1073/pnas.1009205107
发表时间：
2010-08-10
影响因子：
11.1
作者：
German, C. R.;Bowen, A.;Yoerger, D. R.
通讯作者：
Yoerger, D. R.
影响因子：
5
作者：
Heuer, Verena B.;Pohlman, John W.;Hinrichs, Kai-Uwe
通讯作者：
Hinrichs, Kai-Uwe
影响因子：
2
作者：
Hirota, A.;Tsunogai, U.;Nakagawa, F.
通讯作者：
Nakagawa, F.