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Thermal Conductivity and Thermal Diffusivity of Ferrosilite under High Temperature and High Pressure
Orthopyroxene is an important constitutive mineral in the crust and the upper mantle. Its thermal properties play a key role in constructing the...
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Back-transformation processes in high-pressure minerals: implications for planetary collisions and diamond transportation from the deep Earth
We conducted back-transformation experiments in ringwoodite, bridgmanite, and lingunite at 0.47–8.1 GPa and 310–920 °C by in situ X-ray observation...
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High-pressure and high-temperature single-crystal X-ray diffraction of complex garnet solid solutions up to 16 GPa and 823 K
P–V–T equations of state (EoS) of synthetic garnet solid solutions with ternary grossular–almandine–pyrope compositions relevant to the Earth’s upper...
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High-pressure crystal structure and equation of state of ferromagnesian jeffbenite: implications for stability in the transition zone and uppermost lower mantle
Jeffbenite, ideally Mg 3 Al 2 Si 3 O 12 , has been identified as inclusions in super-deep diamonds originating from depths that exceed 300 km. Although...
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Dissolution of Peridotite in a Volatile-Rich Carbonate Melt as a Mechanism of the Formation of Kimberlite-like Melts (Experimental Constraints)
AbstractIn the experiments at 3.0–6.3 GPa and 1200–1350°C, it is found that under P – T parameters close to the conditions in ascending kimberlite...
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Titanium-rich metasomatism in the lithospheric mantle beneath the Arkhangelsk Diamond Province, Russia: insights from ilmenite-bearing xenoliths and HP–HT reaction experiments
To provide new insights into the interaction of ultramafic alkaline melts with the subcontinental lithospheric mantle, we present results of a...
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Electrical and thermal conductivity of Earth’s core and its thermal evolution—A review
The Earth’s core is composed of iron, nickel, and a small amount of light elements (e.g., Si, S, O, C, N, H and P). The thermal conductivities of...
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Wear of Cutting Tools in Hard Rock Excavation Process: A Critical Review of Rock Abrasiveness Testing Methods
Increasing demand for the use of different mechanized excavation systems in civil and mining projects has elevated the importance of understanding...
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Thermal equation of state of MgSiO4H2 phase H determined by in situ X-ray diffraction and a multianvil apparatus
Phase H (MgSiO 4 H 2 ) is the high-pressure form of dense hydrous silicate that could deliver surface water into the lower mantle. In this study, we...
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The Fe(Ni)–C–N-phase diagram at 10 GPa—implications for nitrogen and carbon storage in the deep mantle
Nitrogen is the most abundant element in the Earth's atmosphere, yet its geochemical behavior and distribution among the various reservoirs...
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Experimental Study of Cr-Bearing Phases at High Pressures
With a certain degree of approximation, the model system SiO2–MgO–Cr2O3 characterizes the phase associations of the different regions of the Earth’s...
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Statistical analysis of physico-mechanical parameters of sandstones occurring in orogenic settings
In northeastern Sicily (Italy), sandstone rock masses widely crop out as cover deposits over crystalline terrains belonging to the orogenic belt....
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Garnet EoS: a critical review and synthesis
All available volume and elasticity data for the garnet end-members grossular, pyrope, almandine and spessartine have been re-evaluated for both...
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MCMC inversion of the transient and steady-state creep flow law parameters of dunite under dry and wet conditions
The rheology of the upper mantle impacts a variety of geodynamic processes, including postseismic deformation following great earthquakes and...
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Infrared Spectroscopy and Application to Forensics
Infrared spectroscopy is applied to many research topics, spanning across the fields of chemistry, geology, soil and materials science, biology,...
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Switching from seismic faulting to silent slips in harzburgite induced by H2O fluid at upper mantle pressures
Slow-slip events frequently occur, but regular earthquakes are much less active on the H 2 O fluid-rich subduction interface at depths of ~ 40 km. The...
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Optically active centers in brown type IaAB diamonds from the Istok placer in the northeastern Siberian Platform: spectroscopic properties and the effect of HPHT treatment
In this work, step-by-step high-pressure high-temperature annealing of plastically deformed-type IaAB diamonds from the Istok placer has been...
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Pressure dependence of graphitization: implications for rapid recrystallization of carbonaceous material in a subduction zone
We report the results of kinetic experiments of graphitization at various pressures (0.5–8.0 GPa) and durations (1 s to 24 h) at 1200 °C. The natural...
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Elasticity of high-pressure clinoenstatite under mantle conditions: Implications for the origin of the X-discontinuity
The X-discontinuity is characterized by 2–8% wave impedance contrasts and indistinguishable seismological Clapeyron slopes. Its origin is not yet...
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Petrogenesis of Garnet-Bearing Carbonatite in the Tromsø Nappe, Norway
Abstract—The paper presents data on phase relations in garnet-bearing carbonatite from the Tromsø Nappe, Norway. The carbonatite matrix consists of...
