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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
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：11/0  |  提交时间：2020/05/20
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.


  
The carbon content of Earth and its core 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (16) : 8743-8749
作者:  Fischer, Rebecca A.;  Cottrell, Elizabeth;  Hauri, Erik;  Lee, Kanani K. M.;  Le Voyer, Marion
收藏  |  浏览/下载：7/0  |  提交时间：2020/05/13
carbon  metal-silicate partitioning  core formation  light elements  
Alkali magmatism on a carbonaceous chondrite planetesimal 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (15) : 8353-8359
作者:  Aleon, Jerome;  Aleon-Toppani, Alice;  Platevoet, Bernard;  Bardintzeff, Jacques-Marie;  McKeegan, Kevin D.;  Brisset, Francois
收藏  |  浏览/下载：6/0  |  提交时间：2020/05/13
alkali magmatism  early Solar System  planetary differentiation  O and Mg isotopes  meteorites  
Evidence of metasomatism in the interior of Vesta 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Zhang, Ai-Cheng;  Kawasaki, Noriyuki;  Bao, Huiming;  Liu, Jia;  Qin, Liping;  Kuroda, Minami;  Gao, Jian-Feng;  Chen, Li-Hui;  He, Ye;  Sakamoto, Naoya;  Yurimoto, Hisayoshi
收藏  |  浏览/下载：8/0  |  提交时间：2020/05/13
Paleomagnetism indicates that primary magnetite in zircon records a strong Hadean geodynamo 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (5) : 2309-2318
作者:  Tarduno, John A.;  39;t Erve, Olaf
收藏  |  浏览/下载：5/0  |  提交时间：2020/05/13
Hadean geodynamo  paleointensity  early Earth conditions  
Gold endowments of porphyry deposits controlled by precipitation efficiency 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Chiaradia, Massimo
收藏  |  浏览/下载：1/0  |  提交时间：2020/05/13
Magma reservoir failure and the onset of caldera collapse at Kilauea Volcano in 2018 期刊论文
SCIENCE, 2019, 366 (6470) : 1214-+
作者:  Anderson, Kyle R.;  Johanson, Ingrid A.;  Patrick, Matthew R.;  Gu, Mengyang;  Segall, Paul;  Poland, Michael P.;  Montgomery-Brown, Emily K.;  Miklius, Asta
收藏  |  浏览/下载：9/0  |  提交时间：2020/02/17