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206 results for “subduction”
Sige_model_subduction_data_basic_35km
<p>This dataset includes the raw data of hydraulic modeling in subduction zones, which are used in the manuscript submitted to JGR by Kaneki & Noda. Details of the dataset can be found in Readme_data_35km.txt.</p>
Sige_model_subduction_data_splay
<p>This dataset includes the raw data of hydraulic modeling in subduction zones, which are used in the manuscript submitted to JGR by Kaneki & Noda. Details of the dataset can be found in Readme_data_splay.txt.</p>
Sige_model_subduction_data_basic_dense
<p>This dataset includes the raw data of hydraulic modeling in subduction zones, which are used in the manuscript submitted to JGR by Kaneki & Noda. Details of the dataset can be found in Readme_data_basic_dence.txt.</p>
Dataset for Effects of elasticity on subduction initiation: Insight from 2-D thermomechanical models
<p>Numerical modeling results and input files of the manuscript "Effects of elasticity on subduction initiation: Insight from 2-D thermomechanical models".</p>
Paleomagnetic Reconstruction for the Origin of the Supra- Subduction Zone Ophiolites during the Progressive Closure of the Neotethys Ocean in Eastern Mediterranean
<p>The paleomagnetic data comprise stereonets from tilt corrected each site used for mean direction. The results contain rocks from the Hatay, Koçali, Göksun, İspendere, Kömürhan and Guleman ophiolites as well as from the overlying sedimentary units emplaced in SE Anatolian region. Specimens of each site were described with its declination/inclination and MAD angles.</p>
Data publication for "Different earthquake nucleation conditions revealed by stress drop and b-value mapping in the northern Chilean subduction zone"
<p><strong>Abstract</strong>: b-value catalog data publication supplement for "Different earthquake nucleation conditions revealed by stress drop and b-value mapping in the northern Chilean subduction zone" (Folesky, (SciRep,2024), <a href="https://doi.org/10.1038/s41598-024-63015-w">https://doi.org/10.1038/s41598-024-63015-w</a>). b-vales were computed based on the IPOC seismic catalog for northern Chile (Sippl et al., 2023). b-values are computed only for events that have a known stress drop value, as assigned by Folesky et al., 2024. b-values are computed for the 200-1000 nearest neighbors of each event within a maximum distance of 50km using the maximum likelihood approach as implemented by T.Goebel (Geobel et al., 2017). Each seismotectonic class (Sippl et al., 2023) is processed separately. The standard deviation of the fit is obtained by 100 bootstrap iterations for each event while discarding randomly selected 10% of the neighbors.</p> <p><strong>File descriptions</strong>: table columns <br>ID, cls, Lon, Lat, Depth, Magntiude, a, b, Std<br>------------------<br>explanation<br>ID : origin time<br>cls : event class<br>Lon : longitude <br>Lat : latitude<br>Depth : depth in km<br>Magnitude : magnitude (MA)<br>a : a- value <br>b : b- value<br>Std : standard deviation from bootstrapping</p> <p><strong>References</strong>:</p> <p>Folesky, Jonas, (SciRep,2024), <a href="https://doi.org/10.1038/s41598-024-63015-w">https://doi.org/10.1038/s41598-024-63015-w</a></p> <p>Sippl, C., Schurr, B., Münchmeyer, J., Barrientos, S., Oncken, O. (2023): Catalogue of Earthquake Hypocenters for Northern Chile from 2007-2021 using IPOC (plus auxiliary) seismic stations. <a title="Follow link" href="https://doi.org/10.5880/GFZ.4.1.2023.004" target="_blank" rel="nofollow noopener">https://doi.org/10.5880/GFZ.4.1.2023.004</a></p> <p>Folesky, J., Pennington, CN., Kummerow J., Hofman LR. (JGR: Solid Earth, 2024) <a href="https://doi.org/10.1029/2023JB027549">https://doi.org/10.1029/2023JB027549</a></p> <p>Goebel, T. H., Kwiatek, G., Becker, T. W., Brodsky, E. E. & Dresen, G. What allows seismic events to grow big?: Insights from b-value and fault roughness analysis in laboratory stick-slip experiments. Geology 45, 815–818 (2017).</p>
Melting of Hydrated Subducted Lithospheric Mantle for the Origin of Ultra-Low Velocity Zones in the Cold Regions of Earth's Core-Mantle Boundary
<p>These are the datasets used in the figures. We submitted our manuscript to a peer-reviewed journal (Date: 2024-JUL-05).</p>
The contribution of locally tangential CMB-mantle flow and cold-source subducting plates to ULVZ's formation and morphology
<p>This is the dataset for the paper "The contribution of locally tangential CMB-mantle flow and cold-source subducting plates to ULVZ's formation and morphology"</p> <p>Renewed dataset for the section 4.3.2 in the paper "Contribution of tangential CMB-mantle flow between hot mantle plumes and cold downwellings to ULVZ formation and morphology"</p>
Velocity Solution Database for "Little Geodetic Evidence for localized subduction in the Pamir-Hindu Kush of Central Asia"
<p>GNSS derived velocity vectors for stations located throughout Central Asia. All vectors are calculated and presented in the International Terrestrial Reference Frame 2008 (ITRF08). </p>
Dataset: Forced subduction at passive margin
<p>This dataset contains simulation results used for visualizing Figures in <br> “Forced subduction initiation at passive continental margins: velocity-driven versus stress-driven”</p>
Inefficient nitrogen transport to the lower mantle by sediment subduction
<p>Source data</p>
Tracing the oxidizing state and element-mobilizing fluids in continental subduction zones:Insights from the granitic melt-eclogite interface
Open the record for dataset details and reuse information.
SF-CMT catalog of moderate-to-large earthquakes at Japan Trench subduction zone
<p>The CMT solutions are obtained in “Impact of offshore seismograph network and 3-D seismic velocity structure model on centroid moment tensor analysis for offshore earthquake: Application to the Japan Trench subduction zone” by Lina Yamaya, Hisahiko Kubo, Katsuhiko Shiomi, and Shunsuke Takemura.</p> <ul> <li>Earthquakes at the Japan Trench subduction zone</li> <li>April 1, 2017 to March 31, 2024</li> <li>Mw of 5.2–7.0</li> </ul> <p>Data format: YYYY-MM-DD (JMA origin at JST), time (JMA origin at JST), YYYY-MM-DD<br>(JMA origin at UTC), time (JMA origin at UTC], longitude, latitude, depth, Mrr, Mtt, Mff, Mrt, Mrf, Mtf (Nm), time shift, variance reduction, Mw</p> <p>The centroid times of the SF-CMT and F-CMT solutions can be obtained by adding the time shift to the JMA origin time (columns 1 and 2, or 3 and 4).</p> <p>"SFCMT.zip" and "FCMT.zip" files include SF-CMT and F-CMT solutions for the earthquakes and station lists.</p> <p> </p> <p>Manuscript DOI: <a href="https://doi.org/10.1029/2024JB029944">10.1029/2024JB029944</a></p> <p>For more information, please contact the creator.</p>
Data from the manuscript "Is the 2010 Maule Earthquake a repeating earthquake? Rupture heterogeneities and their impact on ground motion, landslides and cortical faults in Subduction Zones. "
<p>MATLAB data and codes used for the manuscript are provided. These calculate ground motion from a heterogeneous rupture, similar to the approach used in Venegas-Aravena (2024). The rupture simulation can be performed using the 'HE_B rupture.mat' code, which implements the Heterogeneous Energy-Based method (Venegas-Aravena, 2023) to model the 2010 Mw 8.8 Maule earthquake. The code for generating ground motion, 'Displacement_field.mat', calculates near-, intermediate-, and far-field displacement fields following equations 4.32 in Aki and Richards (2002) as a summation of point sources from the earthquake rupture. The subduction geometry is included in this dataset. The code can compute displacements in rho, theta, phi, direction and in east-west, north-south, and dip directions after following code instructions. Additionally, it includes a feature to add Rayleigh waves, although this was not utilized in the 2010 Maule earthquake manuscript.<br><br>A video showing the data can be seen here: <strong>https://youtu.be/6Zf3fgb6AGc.</strong><br><br><br>References</p> <p>Aki and Richards (2002): QUANTITATIVE SEISMOLOGY, SECOND EDITION.</p> <p>Venegas-Aravena (2023): https://doi.org/10.1515/geo-2022-0522.</p> <p>Venegas-Aravena (2024): https://doi.org/10.1007/s11069-024-06651-9.<br><br></p>
Fore-arc metasomatism by hybrid slab fluids during subduction initiation: Sr–Mg–Ca isotopes of rodingite, western Yarlung Zangbo suture zone
<p> Subduction zone metasomatism is critical for Earth’s material exchanges, yet understanding slab dehydration, particularly deserpentinization beneath fore-arcs, remains challenging. Here, we present Sr–Mg–Ca isotopic data for the Purang rodingites in the western Yarlung-Zangbo suture zone (YZSZ). These rodingites, dominated by amphibolite- to greenschist-facies minerals like tremolite, magnesiohornblende, and chlorite, exhibit cumulate textures and rare earth element patterns resembling troctolites or gabbronorites, presumably formed beneath a seafloor spreading center. The rodingites are enriched in large ion lithophile elements and depleted in high field strength elements. They show higher initial <sup>87</sup>Sr/<sup>86</sup>Sr ratios (0.7067–0.7075) and elevated δ<sup>26</sup>Mg values (–0.22 ± 0.07‰ to –0.13 ± 0.02‰) compared to pristine oceanic basalts, while their δ<sup>44/40</sup>Ca values (0.72 ± 0.02‰ to 0.87 ± 0.03‰) correspond to mid-ocean ridge basalts (MORB). These features imply fore-arc mantle metasomatism of an original MOR-derived protolith at <40 km slab depth, driven by Sr- and Mg-rich fluids from clay-rich sediments and serpentinitized mantle, respectively. The measured Sr and Mg isotope compositions can be reproduced by mixing a MORB-like protolith with hybrid fluids derived from 70–30% clays and 30–70% serpentinites, with a fluid-to-rock ratio of approximately 1:3–1:5. Combined with studies on YZSZ metamorphic soles, we propose this metasomatism occurred during incipient subduction of the Neo-Tethys oceanic rocks. Our studies highlight the significance of deserpentinization at shallow fore-arc mantle settings during subduction initiation and suggest that subducting slabs exhibit more varied dehydration characteristics than previously recognized.</p>
Slip behaviors controlled by rheological and compositional properties of a two-phase mélange in subduction shear zone
<p>%%%%%%%%%%%%%%%%%%%%%%%%%%%</p> <p>mesh</p> <p>This is the mesh code for the percentage of block volume (or area in 2D) within the central mixture region, corresponding to 10%, 30%, 50%, and 60%.</p> <p>%%%%%%%%%%%%%%%%%%%%%%%%%%%</p> <p>0.005_0.2_10</p> <p>this is a typical creep case under the conditions of matrix viscosity of 10^19 Pa s , matrix RSF parameter (a-b) of 0.006 and block ratio of 10%</p> <p>circle_rho.m % the main code</p> <p>a_timestep.txt % save the timestep</p> <p>picture.m % Sample plotting code</p>
Ophiolites in the Central Asian Orogenic Belt record Cambrian subduction initiation processes
Open the record for dataset details and reuse information.
Datasets: Wedge-shaped southern Indian continental margin without proper weakness hinders subduction initiation
<p>The numerical model results of "Wedge-like southern Indian continental margin without proper weakness hinders subduction initiation".</p>
Dataset for Formation of Metamorphic Soles underlying Ophiolites during Subduction Initiation: A Systematic Numerical Study
<p>The numerical model results in the paper 'Formation of Metamorphic Soles underlying Ophiolites during Subduction Initiation: A Systematic Numerical Study'.</p>
Numerical modeling results for Compression at strike-slip fault is a favorable condition for subduction initiation
<p>Each compressed file contains the visualization data of one model with vtk files. </p> <p>Opensource software Paraview is required to open the vtk files. </p> <p>Put the 'pvsm' file into folds with time.pvd for visulization.</p>
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