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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.


  
Instantaneous rock transformations in the deep crust driven by reactive fluid flow 期刊论文
NATURE GEOSCIENCE, 2020, 13 (4) : 307-+
作者:  Beinlich, A.;  John, T.;  Vrijmoed, J. C.;  Tominaga, M.;  Magna, T.;  Podladchikov, Y. Y.
收藏  |  浏览/下载:3/0  |  提交时间:2020/05/13
Fault zone processes and fluid history in Austin Chalk, southwest Texas 期刊论文
AAPG BULLETIN, 2020, 104 (2) : 245-283
作者:  Ferrill, David A.;  Evans, Mark A.;  McGinnis, Ronald N.;  Morris, Alan P.;  Smart, Kevin J.;  Lehrmann, Daniel;  Gulliver, Kirk D. H.;  Sickmann, Zach
收藏  |  浏览/下载:9/0  |  提交时间:2020/05/13
Nuclear magnetic resonance and x-ray microtomography pore-scale analysis of oil recovery in mixed-porosity carbonates 期刊论文
AAPG BULLETIN, 2020, 104 (1) : 37-52
作者:  King, Hubert;  Sansone, Michael;  Dunsmuir, John;  Callen, Nicole;  Kortunov, Pavel;  Xu, Ye;  Buono, Antonio;  Gao, Bo;  Kralik, James
收藏  |  浏览/下载:7/0  |  提交时间:2020/05/13
Geochemical constraints on the origins of calcite cements and their impacts on reservoir heterogeneities: A case study on tight oil sandstones of the Upper Triassic Yanchang Formation, southwestern Ordos Basin, China 期刊论文
AAPG BULLETIN, 2019, 103 (10) : 2447-2485
作者:  Xi, Kelai;  Cao, Yingchang;  Liu, Keyu;  Wu, Songtao;  Yuan, Guanghui;  Zhu, Rukai;  Zhao, Yiwei;  Hellevang, Helge
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
The cap rocks sealing the reservoir in the Weglowka oil field, sub-Silesian unit, Polish outer Carpathians: Petrographical approach 期刊论文
AAPG BULLETIN, 2019, 103 (10) : 2369-2398
作者:  Gorniak, Katarzyna
收藏  |  浏览/下载:0/0  |  提交时间:2019/11/27
Confocal laser scanning microscopy and automated petrographic image analysis in different rock types: Two-dimensional images capillary pressure curves estimation and three-dimensional porosity reconstruction 期刊论文
AAPG BULLETIN, 2019, 103 (8) : 1963-1978
作者:  Caja, M. A.;  Perez-Jimenez, J. L.;  Leon, M. F.;  Acero-Allard, D.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
Bedding-parallel stylolites as a tool to unravel maximum burial depth in sedimentary basins: Application to Middle Jurassic carbonate reservoirs in the Paris basin, France 期刊论文
GEOLOGICAL SOCIETY OF AMERICA BULLETIN, 2019, 131: 1239-1254
作者:  Beaudoin, N.;  Gasparrini, M.;  David, M-E;  Lacombe, O.;  Koehn, D.
收藏  |  浏览/下载:1/0  |  提交时间:2019/11/27
A new approach for characterization and prediction of natural fracture occurrence in tight oil sandstones with intense anisotropy 期刊论文
AAPG BULLETIN, 2019, 103 (6) : 1383-1400
作者:  Gong, Lei;  Fu, Xiaofei;  Wang, Zhaosheng;  Gao, Shuai;  Jabbari, Hadi;  Yue, Wenting;  Liu, Bo
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/26