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| 高压下顽火辉石的相态用其地球物理意义 | |
| 引用本文： | 霍卉,龚自正,经福谦.高压下顽火辉石的相态用其地球物理意义[J].高压物理学报,1999,13(2):42. |
| 作者姓名： | 霍卉 龚自正 经福谦 |
| 作者单位： | 1. 中物院流体物理研究所兴师动众波物理与爆轰物理实验室,成都523信箱,610003 2. 中物院流体物理研究所兴师动众波物理与爆轰物理实验室,成都523信箱,610003;中国科学院贵阳地球化学研究所,贵阳,550002 3. 中物院流体物理研究所兴师动众波物理与爆轰物理实验室,成都523信箱,610003;北京理工大学机电工程系,北京,100081 |
| 基金项目： | 国家自然科学基金,中国工程物理研究院行业科学技术预先研究基金 |
| 摘 要： | 利用Birch-Murnahan有限应变状态方程和Gru
neisen 状态方程，计算了钙钛矿型((Mgo. 86Fe |
| 关 键 词： | 顽火辉石 钙钛矿 Hugoniot状态方程 下地幔 |
HIGH-PRESSURE PHASE STATE OF ENSTATITE AND ITS APPLICATION IN GEOPHYSICS |
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| Huo Hui,Gong Zizheng,Jing Fuqian.HIGH-PRESSURE PHASE STATE OF ENSTATITE AND ITS APPLICATION IN GEOPHYSICS[J].Chinese Journal of High Pressure Physics,1999,13(2):42. | |
| Authors: | Huo Hui Gong Zizheng Jing Fuqian |
| Abstract: | By using Birch Murnaghan and Grneisen equation of state,Hugoniots of both perovskite (Mg 0.86 Fe 0.14 )SiO 3 and the mixture of magnesiow stite ((Mg 0.86 Fe 0.14 )O) and stishovite (SiO 2) have been calculated in this work.When compared with experimental Hugoniots,the calculations demonstrate that the above mentioned two kinds of phase states are indeed possibly the high pressure phases of enstatite when it is compressed to high pressure but to different temperatures.Besides,we further made corrections on the effect of temperature difference due to Hugoniot and PREM estimations to deduce the density values relevant to lower mantle and found that (Mg 0.86 Fe 0.14 )SiO 3 is more likely to be the main composition or phase state of the lower mantle.It shows an additional support to the opinion proposed by Knittle et al. |
| Keywords: | enstatite perovskite Hugoniot equation of state lower mantle |
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