| 地球内部矿物相变及其地质意义 |
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| 引用本文： | 刘巍,杜建国,丁建才.地球内部矿物相变及其地质意义[J].现代地质,2001,15(2):211-215. |
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| 作者姓名： | 刘巍 杜建国 丁建才 |
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| 作者单位： | 1. 中国地震局分析预报中心
2. 内蒙古自治区地质调查院 |
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| 基金项目： | 国家自然科学基金项目(49874013). |
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| 摘 要： | 地球内部矿物相变主要包括固—固相转变和固—液 (熔体 )相物态转变。相变对矿物和岩石的物理性质有重要影响 ,会导致电导率、弹性波速、热力学、流变学参数的异常和产生相变磁效应等。相变具有重要的地质意义 ,可用于建立地幔矿物模型剖面 ,为地震波速不连续界面提供解释并且深刻影响地球深部的物质运动 ,包括导致地震和火山喷发。
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| 关 键 词： | 相变 岩石物理性质 地球深部物质 |
| 文章编号： | 1000-8527(2001)02-0211-05 |
| 修稿时间： | 2001年2月26日 |
PHASE TRANSITION OF THE EARTH INTERIOR MINERAL AND ITS GEOLOGICAL IMPORTANCE |
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| LIU Wei ,DU Jian guo ,DING Jian cai.PHASE TRANSITION OF THE EARTH INTERIOR MINERAL AND ITS GEOLOGICAL IMPORTANCE[J].Geoscience——Journal of Graduate School,China University of Geosciences,2001,15(2):211-215. |
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| Authors: | LIU Wei DU Jian guo DING Jian cai |
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| Institution: | LIU Wei 1,DU Jian guo 1,DING Jian cai 2 |
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| Abstract: | Phase transition of the Earth's interior mineral mainly includes solid solid phase transformation and solid melt state change.It exerts an important influence on mineral physical properties,such as resulting in the abnormalities of conductivity,elastic wave velocity,thermodynamics and magnetic effect and so on.The geological significance of phase transition is presented as follows:(1)helping to build the mineral model profile of the mantle,(2)interpreting the seismic wave velocity discontinuity,and (3)influencing the Earth's deep interior materials movement,including earthquake and volcano eruption. |
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| Keywords: | phase transition mineral physical property earth interior material |
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