【摘 要】
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The compressional behaviour of a natural kyanite,(Al1.99Fe0.01)SiO5,has been investigated to about 17.5 GPa at 300 K using a diamond-anvil cell and synchrotron
【机 构】
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Department of Earth Sciences,University of Western Ontario,
【出 处】
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Progress in Natural Science
论文部分内容阅读
The compressional behaviour of a natural kyanite,(Al1.99Fe0.01)SiO5,has been investigated to about 17.5 GPa at 300 K using a diamond-anvil cell and synchrotron X-ray diffraction.The pressure-volume data fitted to the third-order Birch-Murnaghan equation of state(EoS) yield an isothermal bulk modulus(K0T) of 192 ± 6 GPa and pressure derivative(K00T) of 6 ± 1.When K00T is fixed as 4,the derived K0T is 201 ± 2 GPa.These values are in excellent agreement with most experimental determinations in the literature.Consequently,it can be concluded that the compressibility of kyanite under high pressures has been accurately constrained.
The compressional behavior of a natural kyanite, (Al1.99Fe0.01) SiO5, has been investigated to about 17.5 GPa at 300 K using a diamond-anvil cell and synchrotron X-ray diffraction. The pressure-volume data fitted to the third- order Birch-Murnaghan equation of state (EoS) yield an isothermal bulk modulus (K0T) of 192 ± 6 GPa and pressure derivative (K00T) of 6 ± 1.When K00T is fixed as 4, the derived K0T is 201 ± 2 GPa. These values are in excellent agreement with most experimental determinations in the literature. Conclusion, it can be concluded that the compressibility of kyanite under high efforts has been accurately constrained.
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