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Pore-scale investigation of the use of reactive nanoparticles for in situ remediation of contaminated groundwater source 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (24) : 13366-13373
作者:  Pak, Tannaz;  de Lima Luz, Luiz Fernando, Jr.;  Tosco, Tiziana;  Ruiz Costa, Gabriel Schubert;  Rangel Rosa, Paola Rodrigues;  Archilha, Nathaly Lopes
收藏  |  浏览/下载:10/0  |  提交时间:2020/06/09
NAPL in situ degradation  groundwater remediation  nanoremediation  zero-valent iron nanoparticle  X-ray-computed microtomography  
Water Table Depth and Bedrock Permeability Control Magnitude and Timing of Transpiration-Induced Diel Fluctuations in Groundwater 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (5)
作者:  Harmon, Ryan;  Barnard, Holly R.;  Singha, Kamini
收藏  |  浏览/下载:5/0  |  提交时间:2020/07/02
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.


  
Subcore Scale Fluid Flow Behavior in a Sandstone With Cataclastic Deformation Bands 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (4)
作者:  Romano, Carla R.;  Zahasky, Christopher;  Garing, Charlotte;  Minto, James M.;  Benson, Sally M.;  Shipton, Zoe K.;  Lunn, Rebecca J.
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
deformation bands  multiphase fluid flow  capillary heterogeneity  X-ray computed tomography  positron emission tomography  
Partitioning Thresholds in Hybrid Implicit-Explicit Representations of Naturally Fractured Reservoirs 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (2)
作者:  Wong, Daniel Lorng Yon;  Doster, Florian;  Geiger, Sebastian;  Kamp, Arjan
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/02
upscaling  fractures  effective medium theory  effective permeability  percolation  flow  
A Nonlinear Version of the Reynolds Equation for Flow in Rock Fractures With Complex Void Geometries 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (2)
作者:  Wang, Zhihe;  Xu, Chaoshui;  Dowd, Peter;  Xiong, Feng;  Wang, Hang
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/02
fluid flow  rock fractures  Reynolds equation  perturbation solution  
Digital Rock Segmentation for Petrophysical Analysis With Reduced User Bias Using Convolutional Neural Networks 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (2)
作者:  Niu, Yufu;  Mostaghimi, Peyman;  Shabaninejad, Mehdi;  Swietojanski, Pawel;  Armstrong, Ryan T.
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/02
convolutional neural network  digital rock  image segmentation  X-ray microcomputed tomography  
Consecutive Experimental Determination of Stress-Dependent Fluid Flow Properties of Berea Sandstone and Implications for Two-Phase Flow Modeling 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (1)
作者:  Haghi, Amir H.;  Talman, Stephen;  Chalaturnyk, Richard
收藏  |  浏览/下载:5/0  |  提交时间:2020/07/02
Boosting Resolution and Recovering Texture of 2D and 3D Micro-CT Images with Deep Learning 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (1)
作者:  Da Wang, Ying;  Armstrong, Ryan T.;  Mostaghimi, Peyman
收藏  |  浏览/下载:5/0  |  提交时间:2020/07/02
Capillary Trapping of CO2 in Sandstone Using Low Field NMR Relaxometry 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (12) : 10466-10478
作者:  Connolly, Paul R. J.;  Vogt, Sarah J.;  Mahmoud, Mohamed;  Ng, Christopher N. Y.;  May, Eric F.;  Johns, Michael L.
收藏  |  浏览/下载:10/0  |  提交时间:2020/02/16
Carbon sequestration  capillary trapping  NMR relaxation