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34 results for “lower mantle”
Tables of results for lower mantle grain size and viscosity estimates
<p>Data on diffusivity, grain size, and viscosity calculations are shown in Figs. 7-10 and Figs. S4-S5 in Okamoto and Hiraga's "A Common Diffusional Mechanism for Creep and Grain Growth in Polycrystalline Rocks: Application to Lower Mantle Viscosity Estimates".</p>
Unified Structures of Temperature and Composition of Lower Mantle (USTCLM)
<p>Compositional and thermal state of the lower mantle from joint 3D inversion with seismic tomography and mineral elasticity</p> <p>Data including Vp&Vs structure, chemical proportion, and thermal and density structure.</p> <p><br> </p>
Unified Structures of Temperature and Composition of Lower Mantle (USTCLM)
<p>Unified Structures of Temperature and Composition of Lower Mantle (USTCLM)</p> <p>Author: Xin Deng <br> 769615090@qq.com</p> <p>Compositional and thermal state of the lower mantle from joint 3D inversion with seismic tomography and mineral elasticity</p> <p>Data including Vp&Vs structure, chemical proportion, and thermal and density structure.</p> <p><br> Related: https://doi.org/10.1073/pnas.2220178120</p>
Processed data and models in support of manuscript "Deciphering the state of the lower crust and upper mantle with multi-physics inversion"
<p>Data and model files in original format used in the manuscript "Deciphering the state of the lower crust and upper mantle with multi-physics inversion". These files are accompanied by a set of python scripts to reproduce several of the figures in the Manuscript. Please refer to the Manuscript and the included files for further information on data origin and how to use the scripts. A link will be added upon acceptance.</p>
Dataset for "Seismological Expression of the Iron Spin Crossover in Ferropericlase in the Earth's Lower Mantle"
<p>The folder contains data related to the publication: Shephard, Houser, Hernlund, Trønnes, Valencia-Cardona, Wentzkovitch (2021) Seismological Expression of the Iron Spin Crossover in Ferropericlase in the Earth’s Lower Mantle. Accepted for publication in Nature Communications.</p> <p>It include numerical grids, a simple plotting script, colour maps, and images (jpg and ps files). There is a README file explaining the content and uses of the these additional data files.</p>
Data for "Shallow lower mantle viscosity modulates the pattern of mantle structure"
<p>Data, input files and plotting software for the journal article "Shallow lower mantle viscosity modulates the pattern of mantle structure", published in the journal Geochemistry, Geophysics, Geosystems in 2020.</p> <ol> <li>Simulation-data.tar.gz has information, input files, and data for the last time step of all the simulations run in the study.</li> <li>Post-processing.tar.gz has post-processed data and the scripts used for analysis and plotting of data in the paper.</li> </ol> <p> </p>
Unraveling the Complex Features of the Seismic Scatterers in the Mid-Lower Mantle through Phase Transition of (Al, H)-Bearing Stishovite
<p>Dataset from the paper "Unraveling the Complex Features of the Seismic Scatterers in the Mid-Lower Mantle through Phase Transition of (Al, H)-Bearing Stishovite"</p>
Dataset related to 'Full-waveform inversion reveals diverse origins of lower mantle positive wave speed anomalies'
<p>This repository contains the global distribution of sources and receivers, tomographic models (netCDF4 format), stacked waveforms from the wavefield modelling (.h5 format), 2D grids of the time-depth correlations (.csv format), and Python scripts required for the full analysis and figures presented in the manuscript.</p>
Chemical reaction between ferropericlase (Mg,Fe)O and water under high pressure-temperature conditions of the deep lower mantle
<p>The XRD datasets and the multigrain dataset for the article "Chemical reaction between ferropericlase (Mg,Fe)O and water under high pressure-temperature conditions of the deep lower mantle" by Yang et al.</p>
Seismic Anisotropy in the Lower Mantle Transition Zone Induced by Lattice Preferred Orientation of Akimotoite-Dataset
<p>The dataset includes the lattice preferred orientation data of akimotoite aggregates obtained through EBSD and transmitted two-dimensional (2D) X-ray diffraction method at BL04B1 of synchrotron facility of SPring-8, Hyogo, Japan. The employed conditions of 2D X-ray diffraction measurements are also available.</p>
Deformation of post-spinel under the lower mantle conditions
<p>Data used in</p> <p> </p> <p><strong>Deformation of post-spinel under the lower mantle conditions</strong></p> <p>F. Xu<sup>1, 2</sup>, D. Yamazaki<sup>1</sup>, S. A. Hunt<sup>3, 2</sup>, N. Tsujino<sup>1</sup>, Y. Higo<sup>4</sup>, Y. Tange<sup>4</sup>, K. Ohara<sup>4</sup>, D. P. Dobson<sup>2</sup></p> <p><sup>1</sup> Institute for Planetary Materials, Okayama University, Misasa, 682-0193 Tottori, Japan</p> <p><sup>2</sup> Department of Earth Sciences, University College London, Gower Street, London WC1E 6BT, United Kingdom</p> <p><sup>3</sup> Department of Materials, University of Manchester, Sackville Street Building, Manchester M1 3BB, United Kingdom</p> <p><sup>4</sup> Japan Synchrotron Radiation Research Institute, SPring-8, Sayo, Hyogo 679-5198, Japan</p>
Data sets for "Formation of an Al-rich niccolite-type silica in subducted oceanic crust: implications for water transport to the deep lower mantle"
<p>This is the XRD and IR datasets for the article "Formation of an Al-rich niccolite-type silica in subducted oceanic crust: implications for water transport to the deep lower mantle" by Liu and Yuan et al.</p>
Data for "The effect of a weak asthenospheric layer on surface kinematics, subduction dynamics and slab morphology in the lower mantle"
<p>Dataset associated with the paper entitled "The effect of a weak asthenospheric layer on surface kinematics, subduction dynamics and slab morphology in the lower mantle" by Cerpa, N. G., Sigloch, K., Garel, F., Heuret, A., Davies, D. R., and Mihalynuk, M.</p> <p>Please, contact Nestor Cerpa (nestor.cerpa@umontpellier.fr) for additional information</p>
Stability and solubility of the FeAlO3 component in bridgmanite at uppermost lower-mantle conditions
<p>Here, we show the experimental details of the synthesized minerals under the lower mantle conditions, the compositions of the samples, and the lattice parameters of the bridgmanite phase.The results will help understand the Fe<sup>3+</sup> and Al<sup>3+ </sup>solubility in the lower mantle and the mineralogy of this region.</p>
Supporting dataset for manuscript "Direct viscosity measurement of peridotite melt under lower-mantle conditions supports a fractional magma ocean solidification at top lower mantle conditions"
<p>Supporting material for manuscript "<strong>Direct viscosity measurement of peridotite melt under lower-mantle conditions supports a fractional magma ocean solidification at top lower mantle conditions"</strong></p>
Hydrogen partitioning between stishovite and hydrous phase δ: Implications for water cycle and distribution in the lower mantle
<p>FTIR data (wav number vs absorption coefficient) for starting stishovite crystals and crystals after annealing.</p>
Tables of results for lower mantle viscosity estimates
<p>Data on diffusivity, grain size, and viscosity calculations are presented in Figs. 7-9 and Figs. S4-S5 of Okamoto and Hiraga's "A Common Diffusional Mechanism for Creep and Grain Growth in Polycrystalline Rocks: Application to Lower Mantle Viscosity Estimates."</p>
Dataset (.esg files) of a multiphase aggregate representative of a lower mantle composition compressed at High P/T in an R rDAC
<p>A collection of .esg files for use in the software package Materials Analysis Using Diffraction (MAUD; Lutterotti et al., 1997). Seven files are included, spanning the range used in data analysis. All are post-conversion from San Carlos olivine. Files are named in the following format:</p> <p>MPBrgFp: Stands for Multiphase, primary phases bridgmanite and ferropericlase<br> ###: Number of the diffraction pattern taken during the experiment<br> ##GPa: Approximate temperature, rounded to the nearest whole number. This is to cross-correlate .esg files with experimental Pt pressures cited within the paper.</p>
Supporting data for "Water content of the dehydration melting layer in the topmost lower mantle" by H. Fei
<p>This is the EPMA and XRD data for "Water content of the dehydration melting layer in the topmost lower mantle" by H. Fei.</p>
Data for: Electrical Conductivity of Superionic Hydrous SiO2 and the Origin of Lower-mantle High Conductivity Anomalies Beneath Subduction Zones
<p><strong>Dataset S1.</strong> Experimental conditions and the measured resistance and conductivity of hydrous Al-bearing SiO2. </p>
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