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Pressure calibration and sound velocity measurement to 12 GPa in multi-anvil apparatus
We performed the pressure calibration to 12 GPa for 14/6 type (octahedron edge length/WC truncated edge length, in mm) cell assembly in DS 6 × 1400...
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Determination of phase relations of the olivine–ahrensite transition in the Mg2SiO4–Fe2SiO4 system at 1740 K using modern multi-anvil techniques
The phase relations of iron-rich olivine and its high-pressure polymorphs are important for planetary science and meteoritics because these minerals...
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High-Pressure and High-Temperature Experiments with Large-Volume Apparatus
Large-volume high-pressure apparatus, particularly the piston-cylinder apparatusPiston-cylinder apparatus and multianvil presses, are described in...
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Application of the double-difference relocation method to acoustic emission events in high-pressure deformation experiments
A methodology has been developed, detailing the theory and workflow, for applying the double-difference relocation method to acoustic emission (AE)...
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Effect of Sulfur Concentration on Olivine Sulfidation under Lithospheric Mantle PT-parameters
AbstractExperimental studies aimed at the modeling of interaction processes of sulfur-bearing metasomatic agents with mantle silicates and assessing...
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New hydrous phases in the Al2O3-SiO2-H2O system under the mantle transition zone conditions
Hydrous minerals in the subducting slabs are potential water carriers into the deep mantle, and thus the synthesis of new hydrous phases is...
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GeoSoilEnviroCARS (Sector 13) at the Advanced Photon Source: a comprehensive synchrotron radiation facility for Earth science research at ambient and extreme conditions
GeoSoilEnviroCARS (GSECARS) is a comprehensive analytical laboratory for Earth and environmental science research using X-ray beams from the Advanced...
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Thermal expansivity and high-pressure sound velocities of natural topaz and implications for seismic velocities and H2O and fluorine recycling in subduction zones
Topaz is an important mineral formed in deeply subducted sediments and might be a major carrier of both H 2 O and fluorine into the Earth’s interior....
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Water speciation and hydrogen isotopes in hydrous stishovite: implications for the deep Earth water cycle
Stishovite is a key mineral for understanding the deep Earth water cycle because of its potential as a main carrier for water into the transition...
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Development of in-situ Micro-Raman spectroscopy system for autoclave experimental apparatus
We developed a set of in-situ Micro-Raman spectroscopy system for autoclave experimental apparatus because of the scientific significance of in-situ...
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High-pressure phase relations in the system Fe–Ni–Cu–S up to 14 GPa: implications for the stability of sulfides in the earth’s upper mantle
Base metal sulfides (Fe–Ni–Cu–S) are ubiquitous phases in mantle and subduction-related lithologies. Sulfides in the mantle often melt incongruently,...
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Effect of Al on the stability of dense hydrous magnesium silicate phases to the uppermost lower mantle: implications for water transportation into the deep mantle
We have systematically investigated the high-pressure and high-temperature stability of Al-bearing dense hydrous magnesium silicate phases (DHMSs) in...
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Solubility of water in bridgmanite
Water in Earth’s mantle plays a critical role in both geodynamic and surficial habitability. Water in the upper mantle and transition zone is widely...
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Review of experimental and analytical techniques to determine H, C, N, and S solubility and metal–silicate partitioning during planetary differentiation
During their formation, terrestrial planets underwent a magma ocean phase during which their metallic cores segregated from their silicate mantles...
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Chemical analysis of trace elements at the nanoscale in samples recovered from laser-heated diamond anvil cell experiments
High pressure and high temperature experiments performed with laser-heated diamond anvil cells (LH-DAC) are being extensively used in geosciences to...
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Details of Interaction between CaCO3 and Fe at 4 GPa and 1400‒1500°C
AbstractThe issue of the stability of carbonate matter (CaCO 3 ) in subduction zones under reduced conditions remains topical. In addition, carbonates...
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Electrical conductivity measurements in piston cylinder press: metal shielding in the assembly design and implications
Laboratory measurements of the electrical conductivity of silicate materials at well-constrained conditions are important for insights into the...
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Phase relations of the Al2O3–SiO2 system at 13–21 GPa and 2300–2800 K and a new high-pressure Al2Si2O7 phase
Phase relations of the Al 2 O 3 –SiO 2 system were determined by multi-anvil experiments at pressures of 13–21 GPa and temperatures of 2300–2800 K. We...
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Anomalous compressibility in (Fe,Al)-bearing bridgmanite: implications for the spin state of iron
The valence and spin states of Fe in (Fe,Al)-bearing bridgmanite (bdg) affect its physical properties, which is important for the interpretation of...
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Anisotropic electrical conductivity changes in FeTiO3 structure transition under high pressure
Electrical resistivity measurements on oriented FeTiO 3 ilmenite using single crystals at high pressures proves that FeTiO 3 ilmenite shows anisotropic...
