Article
Geosciences, Multidisciplinary
Sylvain Barbot
Summary: Establishing a constitutive law for fault friction is crucial for understanding fault behavior, but the complex frictional behavior of natural and synthetic gouges is difficult to explain. This study presents a constitutive framework that explains the rate, state, and temperature dependence of fault friction, and calibrates the model using laboratory data.
Article
Environmental Sciences
Ronny Figueroa, Benoit Viguier, Matias Taucare, Gonzalo Yanez, Gloria Arancibia, Jorge Sanhueza, Linda Daniele
Summary: This study successfully decoded the groundwater flow-paths in fault-controlled Mountain Front Zones using a combined geophysical approach, revealing the use of focused mountain-block recharge processes for recharge, and highlighting the key role of irrigation canals in the recharge of alluvial aquifers.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
T. Gaubert-Bastide, S. Garambois, C. Bordes, C. Voisin, L. Oxarango, D. Brito, P. Roux
Summary: The study focuses on monitoring groundwater level changes using high-resolution geophysical methods and recovering seismic wave velocity changes through passive seismic interferometry. The experiment shows that seismic velocity variations are directly related to changes in water level and water saturation within the unsaturated zone, aiding in the understanding and modeling of water flow dynamics.
WATER RESOURCES RESEARCH
(2022)
Article
Geochemistry & Geophysics
Marco M. Scuderi, Brett M. Carpenter
Summary: Observations of slow earthquakes and tremor have raised fundamental questions about the physics of quasi-dynamic rupture and the underlying fault zone processes. The presence of serpentinite suggests its important role in controlling complex fault slip behavior. Experimental results show the frictional behavior of serpentinite sampled from different locations, and highlight the significant influence of mineralogy on frictional stability and hydrological properties.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Geochemistry & Geophysics
Tai Liu, Guangyu Fu, Yawen She, He Tang
Summary: This study introduces a novel method for computing post-seismic crustal internal deformation in a layered earth model. The method does not require a combination of general and particular solutions, avoiding loss of precision. Numerical results show that as the degrees increase, post-seismic DLN stabilizes in a shorter time interval. The method is validated through simulation of CFS values changes.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2021)
Article
Geosciences, Multidisciplinary
Sophie Cox, Matt J. Ikari, Christopher J. MacLeod, Ake Fagereng
Summary: The frictional strength and stability of oceanic transform faults are influenced by fault-rock evolution, with stronger rocks exhibiting earthquake characteristics and weaker rocks favoring stable creep behavior.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Danian Shi, Qingtian Lu, Yang Shen, Xiaoming Xu, Yongqian Zhang, Yao Xu, Jinhua Zhao, Yumin Gu, Jianyu Shi, Changxin Chen
Summary: A large-scale mantle structure has been observed beneath the South China Sea, indicating the presence of an upwelling mantle plume that has interacted with subducting plates in the region. This structure has influenced the plate tectonics and may have played a role in the formation of intra-plate magmatism and mineralization in South China during the Mesozoic. The results also suggest a long history of extensional regime near the southeastern margin of Eurasia, which has led to the continental breakup, the southeastward extrusion of Indochina, and the opening of the South China Sea during the Cenozoic.
ACTA GEOLOGICA SINICA-ENGLISH EDITION
(2023)
Article
Geochemistry & Geophysics
Ryo Mizushima, Takahiro Hatano
Summary: This study investigates the dynamics of sliding friction, focusing on the state variable and slip velocity of the sliding interface. It reveals the challenge of reproducing stable periodic motion without radiation damping, and proposes two new evolution equations as potential solutions. These equations are examined in terms of experimental validity and relevance to slow earthquakes.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Geochemistry & Geophysics
Ping Tong
Summary: In this study, the seismic traveltime tomography problem is solved using the ray-free adjoint-state method, with the development of an earthquake location method for hypocenter detection. By utilizing multiple-grid model parameterization and gradient descent, optimal solutions for earthquake hypocenters and velocity models are achieved. The results of testing in the Anza earthquake source area reveal specific geological environments and crustal fluids, demonstrating the effectiveness of these tools for hypocenter and tomographic inversions.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geosciences, Multidisciplinary
Masato Furuya, Fumiko Matsumoto
Summary: In the study of the Chaman fault in Pakistan, it was found that the PCMR values for the M5-class and M4.7-class earthquakes were larger than those of larger earthquakes, possibly due to heterogeneity of friction properties on the fault surface. Geodetic inversions were not able to resolve the spatial relationships between coseismic slip and afterslip, suggesting the presence of non-complementary slip distributions.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Engineering, Civil
Shuo Yang, George P. Mavroeidis, Panos Tsopelas
Summary: This article conducts a comprehensive parametric study on ordinary and seismically isolated bridges crossing strike-slip faults, finding that fault crossing angle and location significantly affect displacement demands and response distributions. The most advantageous scenario is at a 90-degree fault crossing angle and middle span crossing location. Seismic excitation polarity may have a significant effect on displacement demands depending on the fault crossing angle.
EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS
(2021)
Article
Geochemistry & Geophysics
Jessica McBeck, Karen Mair, Francois Renard
Summary: Two key parameters, the strength and roughness of pre-existing fault surfaces, control the localization of deformation and seismicity along and surrounding crustal faults. Various models have been studied to investigate the mechanical behavior of healed faults in granite blocks during quasi-static triaxial compression. The anisotropy and amplitude of fault roughness are found to influence fracture network localization, fault slip, and stress concentrations along healed faults. Contrary to expectations, the compressive strengths of models with faults of varying roughness do not show significant variations, and fault roughness does not evolve similarly with slip. Smoother faults remain smoother throughout the simulation, but rougher faults produce more gouge, lubricating the fault and reducing the influence of roughness on compressive strength. Asperities on fault surfaces control slip by hindering fault-plane parallel slip and promoting fault-plane normal opening during fault movement.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2021)
Article
Geochemistry & Geophysics
Jianye Chen, Andre R. R. Niemeijer, Christopher J. J. Spiers
Summary: Insufficient physical knowledge of fault behavior hampers earthquake simulation and hazard prediction. Laboratory studies suggest that earthquake rupture on carbonate faults can be explained by a transition from high to low friction, known as rapid dynamic weakening. Frictional heating resulting in deformation by grain boundary sliding is one explanation for this weakening. In this study, a microphysically based model was used to simulate seismic slip in laboratory carbonate faults, taking into account grain size evolution and deformation mechanisms.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Geochemistry & Geophysics
Judith M. Confal, Paola Baccheschi, Silvia Pondrelli, Foivos Karakostas, Brandon P. Vanderbeek, Zhouchuan Huang, Manuele Faccenda
Summary: Measurements of seismic anisotropy provide valuable information on the Earth's interior, especially the upper mantle. However, most standard teleseismic body-wave tomography studies ignore P- and S-wave anisotropy, leading to erroneous tomographic models. To overcome this, tomographic methods based on shear wave splitting data have been developed to image upper mantle anisotropy. This study demonstrates the potential of using splitting intensity (SI) tomography to accurately image anisotropy in a synthetic subduction setting. Importance rating: 8/10.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Nikolaos Makrakis, Prodromos N. Psarropoulos, Yiannis Tsompanakis
Summary: As demonstrated in the case studies, the developed GIS-based computational tool efficiently selects the best routing for energy and telecommunication cables considering different design criteria and potential geohazards. This tool utilizes a methodology that integrates least-cost path analysis and a multi-criteria decision approach, allowing for the derivation of multiple routes for user-defined scenarios. It also quantitatively assesses the intersection of fault zones and cables using advanced numerical models, considering the potential cable distress. The tool can be implemented for the optimal route selection of offshore cables, as exemplified in the analyzed real case studies.
APPLIED SCIENCES-BASEL
(2023)
Article
Energy & Fuels
M. Adelinet, C. Dorbath, M. Calo, L. Dorbath, M. Le Ravalec
OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES
(2016)
Article
Geochemistry & Geophysics
Pietro Di Stefano, Rocco Favara, Dario Luzio, Pietro Renda, Maria Simona Cacciatore, Marco Calo, Giuseppe Napoli, Laura Parisi, Simona Todaro, Giuseppe Zarcone
Article
Geochemistry & Geophysics
M. Calo, T. Bodin, B. Romanowicz
EARTH AND PLANETARY SCIENCE LETTERS
(2016)
Article
Geochemistry & Geophysics
Zack Spica, Mathieu Perton, Marco Calo, Denis Legrand, Francisco Cordoba-Montiel, Arturo Iglesias
GEOPHYSICAL JOURNAL INTERNATIONAL
(2016)
Article
Geosciences, Multidisciplinary
Marco Calo, Catherine Dorbath, Paul Lubrano Lavadera
GEOPHYSICAL RESEARCH LETTERS
(2016)
Article
Geochemistry & Geophysics
Victor M. Cruz-Atienza, Yoshihiro Ito, Vladimir Kostoglodov, Vala Hjorleifsdottir, Arturo Iglesias, Josue Tago, Marco Calo, Jorge Real, Allen Husker, Satoshi Ide, Takuya Nishimura, Masanao Shinohara, Carlos Mortera-Gutierrez, Soliman Garcia, Motoyuki Kido
SEISMOLOGICAL RESEARCH LETTERS
(2018)
Article
Geochemistry & Geophysics
Marco Calo, Laura Parisi, Dario Luzio
GEOPHYSICAL JOURNAL INTERNATIONAL
(2013)
Article
Geochemistry & Geophysics
M. Calo, L. Parisi
GEOPHYSICAL JOURNAL INTERNATIONAL
(2014)
Article
Energy & Fuels
Marco Calo, Catherine Dorbath, Michel Frogneux
Article
Multidisciplinary Sciences
Marco Calo, Anna Tramelli
SCIENTIFIC REPORTS
(2018)
Article
Computer Science, Interdisciplinary Applications
Ivan Granados, Marco Calo, Valente Ramos
COMPUTERS & GEOSCIENCES
(2019)
Article
Geosciences, Multidisciplinary
Veronica Vilchis Garcia, Marco Calo, Javier Francisco Lermo Samaniego
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2019)
Article
Geochemistry & Geophysics
T. Toledo, E. Gaucher, P. Jousset, A. Jentsch, C. Haberland, H. Maurer, C. Krawczyk, M. Calo, A. Figueroa
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2020)
Article
Geosciences, Multidisciplinary
Marco Calo, Francesca Di Luccio, Patricia Persaud, Guido Ventura
Summary: We conducted ambient noise tomography on continuous data from a dense seismic array on Lipari Island in the southern Tyrrhenian Sea. This technique allowed us to generate high-resolution images of the island's subsurface down to approximately 2.5 km depth, revealing a complex seismic structure that corresponds to the different regions of the island with varying ages and compositions of volcanic products. High shear wave velocities were detected in western Lipari, where active hydrothermal vents and N-S faults were identified. Low wave speeds were found beneath the southern and northeastern parts of Lipari, where recent volcanic activity occurred along N-S dike-like structures aligned with rhyolitic vents. These dikes may serve as potential pathways for future volcanic eruptions.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geochemistry & Geophysics
C. Alexandrakis, M. Calo, F. Bouchaala, V. Vavrycuk