Slab-derived fluid storage in the crust elucidated by earthquake swarm
Slab-derived fluid storage in the crust elucidated by earthquake swarm
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地震群阐明了地壳中板片衍生的流体储存
DOI:
10.1038/s43247-022-00610-7
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发表时间:
2022
影响因子:
7.9
通讯作者:
Keisuke Yoshida
中科院分区:
文献类型:
--
作者:
Yusuke Mukuhira;Masaoki Uno;Keisuke Yoshida
Slab-derived fluids control crustal dynamics in the subduction zone. However, the slab-derived fluid budget has never been quantified beyond a geophysical and geological spatiotemporal resolution. Here, we target an intense earthquake swarm associated with the M9 Tohoku earthquake, which represented the critical dynamic behavior of slab-derived fluid. The fluid volume involved has been quantified, with a plausible range of 106−108m3, by utilizing injection-induced seismicity insights. Comparisons with geological proxies suggest that the estimated fluid volume can be accumulated via supply from the lower crust within 102–104y. Our study demonstrated such amount of aqueous fluid stored at the midcrustal level, which triggered consecutive swarm activity for ~2 y with the Tohoku earthquake, suggesting a possible link between earthquake swarms to M9 class earthquakes (103y cycle) and mineral veins and deposits. This study has shed light on the quantitative understanding of the dynamic slab-derived fluid budget.
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DOI:
10.1002/2016jb013022
发表时间:
2016
期刊:
Journal of Geophysical Research: Solid Earth
影响因子:
--
作者:
Keisuke Yoshida;A. Hasegawa;Takeyoshi Yoshida
通讯作者:
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1985
期刊:
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2017-12
期刊:
Journal of Geophysical Research: Solid Earth
影响因子:
--
作者:
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通讯作者:
Keisuke Yoshida;Tatsuhiko Saito;Y. Urata;Y. Asano;A. Hasegawa
影响因子:
2.9
作者:
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通讯作者:
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DOI:
10.2465/ganko.91.297
发表时间:
1996
期刊:
影响因子:
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