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首页> 外文期刊>Surveys in Geophysics: An International Review Journal of Geophysics and Planetary Sciences >Heat Transport Processes in the Earth's Crust
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Heat Transport Processes in the Earth's Crust

机译：地壳中的热传递过程

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摘要

The heat of the Earth derives from internal and external sources. A heat balance shows that most of the heat provided by external sources is re-emitted by long-wavelength heat radiation and that the dominant internal sources are original heat and heat generated by decay of unstable radioactive isotopes. Understanding of the thermal regime of the Earth requires appreciation of properties and mechanisms for heat generation, storage, and transport. Both experimental and indirect methods are available for inferring the corresponding rock properties. Heat conduction is the dominant transport process in the Earth's crust, except for settings where appreciable fluid flow provides a mechanism for heat advection. For most crustal and mantle rocks, heat radiation becomes significant only at temperatures above 1200A degrees C.
机译：地球的热量来自内部和外部。热平衡表明，外部源提供的大部分热量都通过长波热辐射重新散发，而主要内部源是原始热量和不稳定放射性同位素衰变产生的热量。要了解地球的热状态，就需要了解有关热量产生，存储和运输的特性和机理。实验方法和间接方法均可用于推断相应的岩石性质。导热是地壳中的主要传输过程，除了可流动的流体提供热对流的机制外。对于大多数地壳和地幔岩石，仅在高于1200A摄氏度的温度下，热辐射才变得显着。

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