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Preferential localized thinning of lithospheric mantle in the melt-poor Malawi Rift 期刊论文
NATURE GEOSCIENCE, 2020
作者:  Hopper, Emily;  Gaherty, James B.;  Shillington, Donna J.;  Accardo, Natalie J.;  Nyblade, Andrew A.;  Holtzman, Benjamin K.;  Havlin, Christopher;  Scholz, Christopher A.;  Chindandali, Patrick R. N.;  Ferdinand, Richard W.;  Mulibo, Gabriel D.;  Mbogoni, Gabriel
收藏  |  浏览/下载:7/0  |  提交时间:2020/08/09
Deep-sea eruptions boosted by induced fuel-coolant explosions 期刊论文
NATURE GEOSCIENCE, 2020, 13 (7) : 498-+
作者:  Duerig, T.;  White, J. D. L.;  Murch, A. P.;  Zimanowski, B.;  Buettner, R.;  Mele, D.;  Dellino, P.;  Carey, R. J.;  Schmidt, L. S.;  Spitznagel, N.
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/06
The Influence of Magma Mixing on the Composition of Andesite Magmas and Silicic Eruption Style 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (13)
作者:  Hodge, K. F.;  Jellinek, A. M.
收藏  |  浏览/下载:8/0  |  提交时间:2020/06/16
andesite  effusive volcanism  explosive volcanism  magma mixing  rheological variations  viscosity variations  
Fossilized solidifications fronts in the Bushveld Complex argues for liquid-dominated magmatic systems 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Kruger, Willem;  Latypov, Rais
收藏  |  浏览/下载:1/0  |  提交时间:2020/06/16
Development of 3-D Rift Heterogeneity Through Fault Network Evolution 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (13)
作者:  Naliboff, J. B.;  Glerum, A.;  Brune, S.;  Peron-Pinvidic, G.;  Wrona, T.
收藏  |  浏览/下载:0/0  |  提交时间:2020/05/25
Spatiotemporal Seismic Structure Variations Associated With the 2018 Kilauea Eruption Based on Temporary Dense Geophone Arrays 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (9)
作者:  Wu, Sin-Mei;  Lin, Fan-Chi;  Farrell, Jamie;  Shiro, Brian;  Karlstrom, Leif;  Okubo, Paul;  Koper, Keith
收藏  |  浏览/下载:9/0  |  提交时间:2020/07/02
Kilauea volcano  magma pressurization  summit collapse  seismic interferometry  dike intrusion  
In situ X-ray diffraction of silicate liquids and glasses under dynamic and static compression to megabar pressures 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (22) : 11981-11986
作者:  Morard, Guillaume;  Hernandez, Jean-Alexis;  Guarguaglini, Marco;  Bolis, Riccardo;  Benuzzi-Mounaix, Alessandra;  Vinci, Tommaso;  Fiquet, Guillaume;  Baron, Marzena A.;  Shim, Sang Heon;  Ko, Byeongkwan;  Gleason, Arianna E.;  Mao, Wendy L.;  Alonso-Mori, Roberto;  Lee, Hae Ja;  Nagler, Bob;  Galtier, Eric;  Sokaras, Dimosthenis;  Glenzer, Siegfried H.;  Andrault, Denis;  Garbarino, Gaston;  Mezouar, Mohamed;  Schuster, Anja K.;  Ravasio, Alessandra
收藏  |  浏览/下载:11/0  |  提交时间:2020/05/20
amorphous silicates  high pressure  shock compression  static compression  XFEL diffraction  
Unexpected large eruptions from buoyant magma bodies within viscoelastic crust 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Sigmundsson, Freysteinn;  Pinel, Virginie;  Grapenthin, Ronni;  Hooper, Andrew;  Halldorsson, Saemundur A.;  Einarsson, Pall;  Ofeigsson, Benedikt G.;  Heimisson, Elias R.;  Jonsdottir, Kristin;  Gudmundsson, Magnus T.;  Vogfjord, Kristin;  Parks, Michelle;  Li, Siqi;  Drouin, Vincent;  Geirsson, Halldor;  Dumont, Stephanie;  Fridriksdottir, Hildur M.;  Gudmundsson, Gunnar B.;  Wright, Tim J.;  Yamasaki, Tadashi
收藏  |  浏览/下载:10/0  |  提交时间:2020/05/20
Temporal Magnetotellurics Reveals Mechanics of the 2012 Mount Tongariro, NZ, Eruption 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (8)
作者:  Hill, Graham J.;  Bibby, Hugh M.;  Peacock, Jared;  Wallin, Erin L.;  Ogawa, Yasuo;  Caricchi, Luca;  Keys, Harry;  Bennie, Stewart L.;  Avram, Yann
收藏  |  浏览/下载:9/0  |  提交时间:2020/07/02
magnetotelluric  Taupo Volcanic Zone  eruption dynamics  Tongariro  phreatic  
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.