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《Chinese Journal of Geophysics》 2016-01
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A shock wave experimental study on Damaping olivine and estimation of its parameters for equation of state

CHEN Zu-An;YUAN Xian-Hao;HUANG Xiao-Ge;LIU Fu-Sheng;DILI Xiati;BAI Wu-Ming;Key Laboratory of Earth and Planetary Physics,Institute of Geology and Geophysics,Chinese Academy of Sciences;Institute of High Temperature and High Pressure Physics,Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China,Southwest Jiaotong University;  
Experiments of dynamical high pressure using shock waves are very effective to study physical properties of material under super-pressure.A shock wave experimental study on Damaping olivine with pressure from 10 to 45GPa is presented in this paper.Combining previous work about isothermal equation of state for olivine,the temperature in experimental process is determined.The temperatures range from dozens of degree to 800 ℃ when the pressures of our experiments are between 10 and 30GPa.The density variation with pressure is obtained from our experiments which ranges from 3.627 to 4.009g·cm~(-3).According to the recover experiment of the sample and estimated temperatures under experimental pressures,it is derived that the phase transition during our experimental process under pressures of 30 GPa did not occur.Meanwhile,the parameters for equation of state are determined.Finally,the geodynamical implication of theexperimental results to interior material movement in mantle is discussed,i.e.cold slab with metastable olivine is easily to sink into the mantle′s transitional zone.
【Fund】: 国家自然科学基金项目(41174073、41174074);; 中国科学院创新项目(KZCX-EW-118)资助
【CateGory Index】: P315.8
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