The equation-of-states of Jilin ordinary chondrite and Nandan iron meteorite

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Iron Meteorites, Meteoritic Composition, Chondrites, Equations Of State, Minerals, Shock Wave Interaction, Gas Guns, Hugoniot Equation Of State

Scientific paper

Shock wave data for Jilin ordinary chondrite and Nandan iron meteorite are measured by electric-pin techniques on a dynamic high-pressure device equipped with a two-stage light gas gun, and then equation-of-states suitable for describing their P-V-E relations are chosen to evaluate the values of their parameters. Demonstrated from the comparison between P-V curves of equation-of-states and experimental data points, P-V relation of Jilin ordinary chondrite can be described by the universal equation-of-state, of which the bulk modulus value of zero-pressure = 48.10 GPa, and its pressure derivative = 4.13. That of Nandan iron meteorite can be described by the three-term form of equation-of-state. The Hugoniot data and equation-of-states for the Jilin ordinary chondrite and Nandan iron meteorite are reported. The equation-of-state defined by Hugoniot data measurement provides strong empirical support for describing the compression of meteorites to high pressure.

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