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Browsing ELibrary by Title
Now showing items 3700-3719 of 21934
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(2002)The epochs of formation, geodynamic setting and sources of rare-metal magmatism in Central Asia were discussed. It was found that in the late paleozoic-early mesozoic epoch, intraplate activity persisted but the area of ...
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(2002)Massive sulfide ore formation is one of the oldest ore-forming processes on the Earth and has accompanied volcanism for the last 3.5 Ga. At least four short epochs are distinguished in the planet's history, during which ...
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(2003)X-band electron paramagnetic resonance experiments on a gamma-irradiated α-quartz crystal have revealed a new hydrogarnet-like defect. Analysis of the spectral data suggests that the centre consists of an oxygenic electron ...
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(1999)Data are reported on more than 100 samples of rock-forming quartz from igneous rocks of associations of different ages in the Greater Caucasus and the Sierra Nevada batolith, USA. These rocks were emplaced in different ...
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(2003)Powdered samples of Mg2SiO4: Cr and Mg 2SiO4: Cr,Li crystals have been studied using EPR spectroscopy. In chromium-doped forsterite crystals, Cr M31+ and Cr M32+ octahedral centers and tetrahedral Cr4+ centers have been ...
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(2003)High-precision unit-cell volume data of stibnite, collected in the pressure range of 0-10 GPa, was used for fitting a third-order Birch-Murnaghan equation of state. The zero-pressure volume, bulk modulus and its pressure ...
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(2003)The behaviour of lawsonite has been studied by single-crystal diffraction to a maximum pressure of 9.82 GPa at room temperature. Lawsonite undergoes a phase transition at approximately 4 GPa from a structure with Cmcm ...
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(2001)We present a modified equation of state for solid phases based on the method of potentials of Zharkov and Kalinin (1968). The potential part of the Helmholtz free energy was expressed in a logarithmic form (Poirier and ...
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(1995)We have used modified Born theory to extend the Shock-Helgeson-Sverjensky equation of state of aqueous silica to 20 kbar and 900°C. An important requirement of this equation of state is the dielectric constant of the solvent ...
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(1995)An equation of state (EOS) has been developed for the NaCl#H2O#CO2 system which consistently predicts various properties including PVTX, immiscibility or phase equilibria, solubilities, and activities with an accuracy close ...
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(2002)The pressure-volume-temperature equation of state (EOS) of gold is fundamental to high-pressure science because of its widespread use as an internal pressure standard. In particular, the EOS of gold has been used in recent ...
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(2002)A laser-heated diamond-anvil cell that is capable of operating up to a pressure of 63 GPa, with X-ray diffraction facilities using a synchrotron radiation source at the SPring-8, has been developed to observe the compressibility ...
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(2004)The stability and pressure–volume equation of state of iron–silicon alloys, Fe-8.7 wt% Si and Fe-17.8 wt% Si, have been investigated using diamond-anvil cell techniques up to 196 and 124 GPa, respectively. Angular–dispersive ...
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(2006)Based on our previous development of the molecular interaction potential for pure H2O and CO2 [Zhang, Z.G., Duan, Z.H. 2005a. Isothermal-isobaric molecular dynamics simulations of the PVT properties of water over wide range ...
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(2004)Measurements of the speed of sound in water have been extended to 5.5 GPa and 400°C. The data were taken in the diamond-anvil cell using Impulsive Stimulated Scattering (Forced Rayleigh Scattering) at acoustic frequencies ...
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(2002)Physical properties including the equation of state, elasticity, and shear strength of pyrite have been measured by a series of X-ray diffraction in diamond-anvil cells at pressures up to 50 GPa. A Birch-Murnaghan equation ...
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(2004)The behaviour of synthetic Mg-ferrite (MgFe2O4) has been investigated at high pressure (in situ high-pressure synchrotron radiation powder diffraction at ESRF) and at high temperature (in situ high-temperature X-ray powder ...
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(2003)An equation of state (EOS) based on thermodynamic perturbation theory is presented for the NaCl-H2O-CH4 system. This equation consistently reproduces PvTX properties and phase equilibria with an accuracy close to that of ...
Now showing items 3700-3719 of 21934