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257 results for “Tectonics”
Earthquake catalog in QuakeML format from: "Spatio-Temporal Evolution of Intermediate-Depth Seismicity Beneath the Himalayas: Implications for Metamorphism and Tectonics"
<p>Earthquake catalog of the intermediate-depth seismicity beneath the central Himalayas in QuakeML format. The information included for each event contains location, phase pick, local magnitude information. For more details refer to the Frontiers publication:<a href="https://doi.org/10.3389/feart.2021.742700"> Michailos et al., 2021</a></p>
Toward understanding tectonic and geometric control on the Lenglongling fault from inter- and co-seismic InSAR observations
<p>The datasets include the interseismic (2014-2021) and coseismic InSAR observations to characterize the interseismic slip-rate along the Qilian-Haiyuan fault, the fault geometry and coseismic slip distribution for the 2022 Menyuan earthquake.</p>
Data for "A snapshot of the long term evolution of a distributed tectonic plate boundary" submitted to Science Advances
<p>This compressed folder contains data presented in Figures of the following paper: "<strong>A snapshot of the long term evolution of a distributed tectonic plate boundary</strong>" by M. Dalaison, R. Jolivet, L. Le Pourhiet; submitted to <em>Science Advances</em> in February 2023</p> <p>Please open the README.txt file for details about the folder's content</p>
A multi-station volcano-tectonic earthquakes monitoring based on Transfer Learning techniques.
<p>A multi-station volcano-tectonic earthquakes monitoring based on Transfer Learning techniques.</p> <p>Manuel Titos (1), Ligdamis Gutiérrez (2,3), Carmen Benítez (1), Pablo Rey Devesa (2,3), Ivan Koulakov (4) and Jesús. M. Ibáñez (2,3)</p> <p><br> <strong>Institutions associated:</strong></p> <p>(1) CITIC, Department of Signal Processing, Telematic and Communications, University of Granada, 18071. Granada. Spain.<br> (2) Department of Theoretical Physics and Cosmos. Science Faculty. Avd. Fuentenueva s/n. University of Granada. 18071. Granada. Spain.<br> (3) Andalusian Institute of Geophysiscs. Campus de Cartuja. University of Granada. C/Profesor Clavera 12. 18071. Granada. Spain.<br> (4) Laboratory for Seismic Forward and Inverse Problems, Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia</p> <p><br> <strong>Acknowledgment:</strong></p> <p>This is a short text to acknowledge the contributions of specific colleagues, institutions, or agencies that aided the efforts of the authors.</p> <p>a) This work is part of the research by the Spanish FEMALE project (PID2019-106260GB-I00). <strong>FEMALE </strong>(<em>Forecasting Volcanic Eruptions Using Signal Processing and Machine Learning Techniques on Seismic Signals</em>) https://femalevolcanoes.es/</p> <p><br> b) JMI and LG were partially funded by the Spanish project PROOF-FOREVER (EUR2022.134044).</p> <p><br> <strong>Keywords:</strong></p> <p>Automatic volcanic monitoring, real-time monitoring, Artificial Intelligence, Transfer Learning, Recurrent Neural Networks, Temporal Convolutional Networks.</p> <p> </p> <p><strong>Data availability statement:</strong></p> <p>Seismic data from Bezymianny volcano (2017), Kamchatka, Russia.</p> <p> </p> <p><strong>Contents:</strong></p> <p>Seismic Data from Bezymianny volcano recorded at stations BZ01, BZ02, BZ06 and BZ10.<br> The data represent the vertical component of the seismic signal, associated to the period analyzed in the study:</p>
Contribution of the Altyn Tagh Fault to tectonic deformation within the Qilian Shan, northern Tibetan Plateau: Implications from the electrical anisotropic structure
<p>The dataset contains five folders. They are ‘MT’, ‘aniinv’, ‘isoinv’, ‘sensitivity_test’, ‘syn_mod_test’, respectively. The ‘MT’ folder includes the observed impedances for each MT site. In the ‘aniinv’ folder, there are three sub-folders include ‘azimu_ani_inv’, ‘gener_ani_inv’, ‘verti_ani_inv’, indicating the inversion results for azimuthal, general, and vertical anisotropic inversions, respectively. The ‘isoinv’ folder contains results for isotropic inversion. The ‘sensitivity_test’ folder contains modified models and their responses for sensitivity tests of anomalies. The ‘syn_mod_test’ folder contains a synthetic model constructed according the final model, the responses of this model, and the recovering for this model. In each folder, there is a ‘readme.txt’ file describing the details of individual files.</p> <p>The 'Software Availability.txt' file illustrates that the software used in 3D anisotropic inversion is available to academic community.</p>
The Late Triassic Longmenshan lateral foreland thrust belt: New insights into the tectonic evolution of the Eastern Tibetian margin
<p>Calcite U-Pb Dating Report.xls:This file displays the calcite U-Pb dating results with errors of thirteen sample. Due to low U concentrations within most samples, only two (CV1 and CV2-1) yielded meaningful U-Pb ages.</p> <p>Occurrence of foliations measured within the Songpan-Ganze terrane.xlsx: This file displays the occurrences of foliations measured within the Songpan-Ganze terrane. Three profiles were measured to study the dip direction of nearly vertical strata (S<sub>0</sub>) and the axial planes of the folds (S<sub>1</sub>).</p>
Data used in the paper entitled: Damaged Speleothems and Collapsed Karst Chambers Indicate Paleoseismicity of the NE Bohemian Massif (Niedźwiedzia Cave, Poland), published in TECTONICS
<p>Multiphase speleothem damage and passage collapse in Niedźwiedzia Cave (E: 16°50′36,65″, N: 50°14′04,26″) NE Bohemian Massif, Poland, were studied with an integrative approach to decipher the cause of damage during the last 320 ka. Since the most likely trigger of damage in the cave was an earthquake, we support our interpretation with a probable seismic intensity prediction to define a seismogenic source and to calculate the expected macroseismic intensity and peak ground acceleration (PGA) at the research site. Finally, we evaluate probable seismic effects in the cave with the elastic properties of speleothems to ascertain a threshold value of failure.<br> The relative range of earthquake hazards for a particular site depends significantly on the decrease in the ground motion amplitude (or intensity) with distance from all surrounding potential seismic sources, event size, and type of acting mechanism. The ground motion relation generally depends on the depth of focus, earthquake mechanism, and geological conditions along the path (Schenková et al., 1981). Therefore, to discuss probable seismic effects in Niedźwiedzia caves and their vicinities, we used the attenuation curves presented previously for the research area (Schenková et al., 1981; <a href="https://doi.org/10.1007/BF00878971;">https://doi.org/10.1007/BF00878971;</a> see the coefficient for the 13th zone). Dataset 2020TC006459_ds_to fig.5 contains a calculation of the attenuation curves, i.e., decrees of the intensity (on the MSK scale) and PGA (m/s2) with distance from the epicenter. We used these data to estimate (or to predict) the expected values of intensities ranging with distance from the seismogenic source region. This approach is a steady-state approximation because we assumed that isoseismal spread is regularly distributed around the epicenter and that the local influence of discontinuities is omitted.<br> The failure criteria resulting in speleothem damage were evaluated on a prismatic cantilever beam supported at one end. The parameters describing these criteria are the speleothem natural frequency and the corresponding critical horizontal ground acceleration (m/s2), which depend on elastic properties of the speleothem and the following geometric dimensions: height, H, and diameter, D, measured in situ (we acquired geometric measurements for 50 broken speleothems in Niedźwiedzia Cave). The horizontal ground acceleration is the limit value when at which speleothems breaks. The natural frequency (Hz) indicates that the failure process is more likely to occur if the natural frequency (or resonance frequency) is in accordance with the seismic wave frequency affecting the speleothem. If both frequencies match, the speleothem resonates, enhancing the oscillation effect, which may lead to damage. Dataset 2020TC006459_ds_to fig.6 contains H and D measurements of 50 broke speleothems and calculated natural frequency and critical horizontal ground acceleration for each measured speleothem. The values of both failure parameters depend on elastic properties that can be assessed in laboratory tests in which the following parameters are estimated: P- and S-wave velocities, Vp and Vs, respectively, using an acoustic measurement system, density, ρ, (from the measured mass and volume), Young’s modulus, E, and tensile stress, σt. The AMS tests were carried out at the Institute of Earth Sciences, University of Silesia, Sosnowiec, Poland. The failure stress was estimated based on the uniaxial compressive stress test carried out in the external laboratory of AP GEOTECHNIKA, Katowice, Poland, using a universal testing machine. The strength tests were conducted for two 0.05x0.05 m (height/dimension, h/d = 1) speleothems samples.</p>
Data from: How sea-level change mediates genetic divergence in coastal species across regions with varying tectonic and sediment processes
Plate tectonics and sediment processes control regional continental shelf topography. We examine the genetic consequences of how glacial-associated sea-level change interacted with variable near-shore topography since the last glaciation. We reconstructed the size and distribution of areas suitable for tidal estuary formation from the Last Glacial Maximum, ~20 thousand years ago, to present from San Francisco, California, USA (~38 °N) to Reforma, Sinaloa, Mexico (~25 °N). We assessed range-wide genetic structure and diversity of three co-distributed tidal estuarine fishes (California Killifish, Shadow Goby, Longjaw Mudsucker) along ~4,600 km using mitochondrial control region and cytB sequence, and 16–20 microsatellite loci from a total of 524 individuals. Results show that glacial-associated sea-level change limited estuarine habitat to few, widely separated refugia at glacial lowstand, and present-day genetic clades were sourced from specific refugia. Habitat increased during postglacial sea-level rise and refugial populations admixed in newly formed habitats. Continental shelves with active tectonics and/or low sediment supply were steep and hosted fewer, smaller refugia with more genetically differentiated populations than on broader shelves. Approximate Bayesian computation favored the refuge-recolonization scenarios from habitat models over isolation by distance and seaway alternatives, indicating isolation at lowstand is a major diversification mechanism among estuarine (and perhaps other) coastal species. Because sea-level change is a global phenomenon, we suggest this top-down physical control of extirpation-isolation-recolonization may be an important driver of genetic diversification in coastal taxa inhabiting other topographically complex coasts globally during the Mid- to Late Pleistocene and deeper timescales.
Supplemental data files for: Evidence for the superposition of tectonic systems in the northern Songliao Block, NE China, revealed by a 3-D electrical resistivity model
<p>Data files for a 3-D electrical resistivity model in the northern Songliao Block, NE China, including the MT data observed there (note the data format is for 3-D inversion using ModEM), and the preferred resistivity model.</p> <p>The software EMdesk from Jilin Kingti Geoexploration Tech, Ltd (Changchun, China) can be used for data analysis and modeling (http://www.kingti.net).</p>
Analogue Models for comparing and testing the relationship between inverted normal faults and pure thrusting during the positive tectonic inversion
<p>This dataset contains a series of Analogue Models for comparing and testing positive tectonic inversion mechanisms and their newly formed structures . Furthermore, it includes 2-D seismic reflection profiles that can be compared with the models presented here. Finally, examples of natural cases that show tectonic inversion processes are included. Both, seismic lines and photos are located on a segment of Andean forearc, specifically, in the Domeyko Cordillera and the Preandean Basins, northern Chile.</p>
Resolving the tectonic setting of South China in the late Paleozoic
<p><span><span>The tectonic setting of South China during the late Paleozoic is essential to understanding the geodynamics off the eastern margin of Pangea supercontinent due to its unique paleo-position at the confluence of the Paleo-Tethys and Panthalassic oceans. </span>Here, we present integrated biostratigraphic, geochronological, and isotope geochemical data on the late Carboniferous siliciclastic rocks from southeast South China in order to decipher the tectonic evolution of the South China Block. We collected three siliciclastic samples from the section at stratigraphic heights of 0.6 m, 16 m, and 26 m. The U-Pb age dating of detrital zircons was conducted by LA-ICP-MS at the Tianjin Center of Geological Survey. </span>Glass NIST 610 was used as external standards for trace element calibration. Zircon Hf isotopic data were conducted by LA-MC-ICP-MS at Nanjing FocuMS Technology Co. Ltd. We also compiled zircon U-Pb age data and Hf isotopic d<span>ata from previously published sources, including Hu et al. 2015, Hu et al. 2012, Li et al. 2020, 2017 and Li et al. 2012.</span></p>
Dataset for High-resolution mantle flow models reveal importance of plate boundary geometry and slab pull forces on generating tectonic plate motions
<p>This repository contains the plugin and dataset used to setup models in the manuscript: "High-resolution mantle flow models reveal importance of plate boundary geometry and slab pull forces on generating tectonic plate motions".</p> <p>The material model plugin used in our models is in the "plugins" folder. The "models" folder contains the reference input parameter file described in the paper. All other model configurations shown in the paper can be obtained by modifying this parameter file. The input files used to set up the models are in the respective folder. Additionally, the Jupyter notebook used to compute residuals of our models is provided in the "scripts" folder.</p> <p> </p>
Supporting Information for the submitted manuscript by Rajič et al. The origin of tectonic mélanges and implication for the subduction interface processes
<p>Files shared here contain supporting information for the submitted manuscript by Rajič et al.</p> <p>Appendix 1 file contains Text A.1, Tables A.1-2 and Figures A.1-8.</p> <p>Appendix 2 file contains all raw Raman spectra acquired in this study, along with READ ME text file.</p>
The Physics of Changing Tectonic Regimes: Implications for the Temporal Evolution of Mantle Convection and the Thermal History of Venus
<p>Input and relevant data files for "The Physics of Changing Tectonic Regimes: Implications for the Temporal Evolution of Mantle Convection and the Thermal History of Venus." Each data set was used to generate figures in text, and was used with, or obtained from, CitcomS (v3.3).</p> <p> </p> <p>diagnostic.dat contains internal metrics [#step time Mobility Tint T_asthen_avg D U Uc RMS_Velocity]<br> Where #step is iteration number, time is the non dimensional diffusion time scale for the step, Mobility is defined in text, Tint is the mid mantle temperature (average), T_asthen_avg is the upper mantle temperature (average), D U Uc not used, and RMS_Velocity is the root mean square velocity.</p> <p> </p> <p>Nusselt.dat contains heat flow information [time, surface nusselt number, basal nusselt number].</p> <p>Time is the non dimensional diffusion time scale for the step. nusselt numbers are nondimesional heatflow from the surface (lithosphere) and base (core).<br> </p> <p>Melt2.dat contains melting information. #step is iteration number, time is the non dimensional diffusion time scale for the step,</p> <p>non-dimensional melt</p> <p> </p> <p>the input.* file is the model input file used with CitcomS (v3.3) that includes all parameters used for the reference case. Variations from this file are described in text.</p>
Fig. 8 in Stratigraphic And Tectonic Data On The Cretaceous Flysch In The Northern Ciuc Mountains (Eastern Carpathians, Romania)
Fig. 8 QFR diagram of the arenitic rocks from the CădăreȘti Formation.
Fig. 6 in Stratigraphic And Tectonic Data On The Cretaceous Flysch In The Northern Ciuc Mountains (Eastern Carpathians, Romania)
Fig. 6 QFR diagram of the arenitic rocks from the Bistra Sandstone (= Ugra Sandstone).
New insights into the driving mechanism of the mid-Eocene (43 Ma) tectonic transition in the western Pacific margin—A case study of stress field modeling in Pingbei
<p><span>This is the dataset for "</span> <span>New insights into the driving mechanism of the mid-Eocene (43 Ma) tectonic transition in the western Pacific margin—A case study of stress field modeling in Pingbei" including modeling parameters and raw results.</span></p>
Block Tectonics across Western Tibet and Multi-Millennial Recurrence of Great Earthquakes on the Karakax Fault
<p><strong>Table 1</strong>: Analytical results of <sup>10</sup>Be and <sup>26</sup>Al geochronology and surface-exposure ages at Taersa site along Karakax fault.</p> <p>LMC.las = UAV point cloud data of the offset shoreline along the Longmu Co fault</p> <p>KXF.txt = LiDAR x-y-z data of the Taersa site</p>
Fig. 3 in An Early Miocene Dome-Skulled Chalicothere from the ''Arikaree'' Conglomerates of Darton: Calibrating the Ages of High Plains Paleovalleys Against Rocky Mountain Tectonism
Fig. 3. Geologic crosssection from Spoon
FIG. 2 in The position of Akkașdağı mammal locality in the neo-tectonic framework of Çankırı basin, Turkey
FIG. 2. — Geological map of the Akkasdağı area, modified from 1/100.000 scale MTA map.
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