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	The Fraction of Hydrogen Isotope During Earth's Evolution
	Chen, Hui ; Zhao, Yong-Hong
	2009
关键词	hydrogen isotope isotope fractionation Earth&apos Earthquake prediction SILICATE-GLASSES WATER MANTLE MINERALS BASALTS OXYGEN GEOCHEMISTRY SOLUBILITY DEUTERIUM HELIUM s evolution
英文摘要	A theoretical simulation on the process by which the hydrogen isotope differentiation took place in the Earth during its early stage of evolution has been made by a model for the Earth's evolution. The result shows that, after having experienced a degassing process when the Earth became an open system from a close system, significant fractionation of the hydrogen isotope composition took place in the Earth's hydrosphere, crust and mantle. The closer to the Earth's core, the more negative the delta D value of matter is. In other words, mantle-derived fluids are of extremely negative delta D value. The initial delta D value of the Earth was about -3 parts per thousand (relative SMOW) immediately after the Earth had been formed. The water content of the hydrosphere makes up about 96% of the total on the Earth. This has opened up a way of imminent Earthquake prediction by use of the hydrogen isotope changes that occur in hot springs along active deep faults.; Geochemistry & Geophysics; Engineering, Geological; Mathematics, Applied; CPCI-S(ISTP); 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/311998]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Chen, Hui,Zhao, Yong-Hong. The Fraction of Hydrogen Isotope During Earth's Evolution. 2009-01-01.

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