| 地球内部压力变化及其构造意义 |
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| 引用本文： | 杨学祥.地球内部压力变化及其构造意义[J].东北地震研究,1997,13(3):1-9. |
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| 作者姓名： | 杨学祥 |
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| 作者单位： | 长春地质学院 |
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| 摘 要： | 地球内部的压力远比人们预想的要高得多，地心处的压强为无穷大，在重力分异过程中，地壳地幔减压膨胀（吸热），地核增压收缩（放热），核幔边界是热交换界面，热幔 核幔边界生成。
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| 关 键 词： | 球面重力场 热幔柱 核幔边界 地球内部 压力变化 |
INTERNAL PRESSURE CHANGE IN EARTH AND TECTONIC SIGNIFICANCE |
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| Yang Xuexiang.INTERNAL PRESSURE CHANGE IN EARTH AND TECTONIC SIGNIFICANCE[J].Seismological Research of Northeast China,1997,13(3):1-9. |
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| Authors: | Yang Xuexiang |
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| Abstract: | Internal Pressure in earth is far greater than anticipated one.The pressure in the earth's core is infinity.The crust and the mantle expand with decrease in pressure(absorbing heat),and the core contracts with increase in pressure(releasing heat)during gravitational differentiation.the bourdary between the core and the mantle is the interface of thermal exchange, and hot plumes are generated on the interface. |
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| Keywords: | Spheric gravity field Hot plume Crust mantle boundary Superhigh pressure |
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