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| 下地幔矿物研究及其进展 | |
| 引用本文： | 龚自正,谢鸿森,费英伟,张莉,邓力维,经福谦.下地幔矿物研究及其进展[J].地学前缘,2005,12(1):3-22. |
| 作者姓名： | 龚自正 谢鸿森 费英伟 张莉 邓力维 经福谦 |
| 作者单位： | 1. 西南交通大学,高温高压物理研究所,四川,成都,610031 2. 中国科学院,地球化学研究所,贵州,贵阳,550002 3. 华盛顿,卡内基研究院,地球物理实验室,华盛顿 DC 20015 4. 华盛顿,卡内基研究院,地球物理实验室,华盛顿 DC 20015;西南交通大学,高温高压物理研究所,四川,成都,610031 5. 中国工程物理研究院,流体物理研究所,冲击波物理与爆轰物理实验室,四川,绵阳,621900;西南交通大学,高温高压物理研究所,四川,成都,610031 |
| 摘 要： | 文中综述了20世纪90年代以来对下地幔矿物高温高压研究的进展,详细评论了下地幔温压下(Mg,Fe)SiO3钙钛矿的稳定性、(Mg, Fe)SiO3 钙钛矿和(Mg, Fe)O镁方铁矿的高压状态方程和热弹性及高压熔化、核幔边界温压下铁和硅酸盐的化学反应等几个热点问题;探讨了下地幔的矿物学组成,对下地幔的地震波速异常给出了可能的矿物学解释;介绍了国内同领域的研究工作;展望了下地幔矿物研究的发展方向。 |
| 关 键 词： | 矿物学 下地幔 高温高压 矿物物性 下地幔矿物组成 |
| 文章编号： | 1005-2321(2005)01-0003-20 |
A review of recent advances on the minerals of the Earth's lower mantle |
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| GONG Zi-zheng,XIE Hong-sen,FEI Ying-wei,ZHANG Li,DENG Li-wei,JING Fu-qian.A review of recent advances on the minerals of the Earth''''s lower mantle[J].Earth Science Frontiers,2005,12(1):3-22. | |
| Authors: | GONG Zi-zheng XIE Hong-sen FEI Ying-wei ZHANG Li DENG Li-wei JING Fu-qian |
| Abstract: | We discuss recent advances in the studies of the physical properties of the dominant minerals of the Earth’s (lower mantle) under high temperature and high pressure. We focus on the phase stability of (Mg, Fe)SiO_3 (perovskite,) the equation of state, the thermo-elasticity and melting of (Mg, Fe)SiO_3 perovskite and (Mg, Fe)O magnesio-wüstite at lower mantle conditions. The chemical reactions between iron and silicate at core-mantle boundary conditions are reviewed in detail. The possible mineralogical composition of the lower mantle is addressed and the possible mineralogical interpretations of the seismic velocity anomaly in the lower mantle are also discussed. Some parallel research in China is introduced. Current problems are emphasized and the new research trends are indicated. |
| Keywords: | mineralogy Earth's lower mantle high temperature and high pressure physical properties of minerals mineralogical composition of the lower mantle |
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