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A history of pore water oxygen isotope evolution in the Cretaceous Travis Peak Formation in East Texas 期刊论文
GEOLOGICAL SOCIETY OF AMERICA BULLETIN, 2020, 132 (7-8) : 1626-1638
作者:  Denny, Adam C.;  Fall, Andras;  Orland, Ian J.;  Valley, John W.;  Eichhubl, Peter;  Laubach, Stephen E.
收藏  |  浏览/下载:5/0  |  提交时间:2020/08/18
Extreme rainfall triggered the 2018 rift eruption at Kilauea Volcano 期刊论文
NATURE, 2020, 580 (7804) : 491-+
作者:  Cloutier, Richard;  Clement, Alice M.;  Lee, Michael S. Y.;  Noel, Roxanne;  Bechard, Isabelle;  Roy, Vincent;  Long, John A.
收藏  |  浏览/下载:33/0  |  提交时间:2020/05/13

The May 2018 rift intrusion and eruption of Kilauea Volcano, Hawai'  i, represented one of its most extraordinary eruptive sequences in at least 200 years, yet the trigger mechanism remains elusive(1). The event was preceded by several months of anomalously high precipitation. It has been proposed that rainfall can modulate shallow volcanic activity(2,3), but it remains unknown whether it can have impacts at the greater depths associated with magma transport. Here we show that immediately before and during the eruption, infiltration of rainfall into Kilauea Volcano'  s subsurface increased pore pressure at depths of 1 to 3 kilometres by 0.1 to 1 kilopascals, to its highest pressure in almost 50 years. We propose that weakening and mechanical failure of the edifice was driven by changes in pore pressure within the rift zone, prompting opportunistic dyke intrusion and ultimately facilitating the eruption. A precipitation-induced eruption trigger is consistent with the lack of precursory summit inflation, showing that this intrusion-unlike others-was not caused by the forceful intrusion of new magma into the rift zone. Moreover, statistical analysis of historic eruption occurrence suggests that rainfall patterns contribute substantially to the timing and frequency of Kilauea'  s eruptions and intrusions. Thus, volcanic activity can be modulated by extreme rainfall triggering edifice rock failure-a factor that should be considered when assessing volcanic hazards. Notably, the increasingly extreme weather patterns associated with ongoing anthropogenic climate change could increase the potential for rainfall-triggered volcanic phenomena worldwide.


Immediately before and during the eruption of Ki & x304  lauea Volcano in May 2018, anomalously high rainfall increased the pore pressure in the subsurface to its highest level in 50 years, causing weakening and mechanical failure of the edifice.


  
Mechanical and hydrological effects of seamount subduction on megathrust stress and slip 期刊论文
NATURE GEOSCIENCE, 2020, 13 (3) : 249-+
作者:  Sun, Tianhaozhe;  Saffer, Demian;  Ellis, Susan
收藏  |  浏览/下载:7/0  |  提交时间:2020/05/13
A method to evaluate pore structures of fractured tight sandstone reservoirs using borehole electrical image logging 期刊论文
AAPG BULLETIN, 2020, 104 (1) : 205-226
作者:  Xiao, Liang;  Li, Junran;  Mao, Zhiqiang;  Yu, Hongyan
收藏  |  浏览/下载:6/0  |  提交时间:2020/05/13
Generation and evolution of overpressure caused by hydrocarban generation in the Jurassic source rocks of the central Junggar Basin, northwestern China 期刊论文
AAPG BULLETIN, 2019, 103 (7) : 1553-1574
作者:  Guo, Xiaowen;  He, Sheng;  Liu, Keyu;  Yang, Zhi;  Yuan, Shengqiang;  Liu, Mingliang
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
Temperature and pressure characteristics of Ordovician gas condensate reservoirs in the Tazhong area, Tarim Basin, northwestern China 期刊论文
AAPG BULLETIN, 2019, 103 (6) : 1351-1381
作者:  Liu, Yifeng;  Qiu, Nansheng;  Hu, Wenxuan;  Li, Huili;  Shen, Fangyu;  Yao, Qianying
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/26
Petrophysical and mineralogical evolution of weathered crystalline basement in western Uganda: Implications for fluid transfer and storage 期刊论文
AAPG BULLETIN, 2018, 102 (6) : 1035-1065
作者:  Walter, B.;  Geraud, Y.;  Bartier, D.;  Kluska, J-M;  Diraison, M.;  Morlot, C.;  Raisson, F.
收藏  |  浏览/下载:1/0  |  提交时间:2019/04/09
Fossil intermediate-depth earthquakes in subducting slabs linked to differential stress release 期刊论文
NATURE GEOSCIENCE, 2017, 10 (12)
作者:  Scambelluri, Marco;  Pennacchioni, Giorgio;  Gilio, Mattia;  Bestmann, Michel;  Plumper, Oliver;  Nestola, Fabrizio
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/09