根据铀-铅同位素体系演化原理论证了铀的活化成矿观点；
On the basis of principle of uranium-lead isotope system evolution, the viewpoint of uranium mobilized mineralization has been proved;
本文归纳了近年来稀有气体同位素与其他同位素体系联合应用的研究进展，及其存在的问题和发展趋势。
This paper has summarized some advances, existing problems and developing tendency on the geochemical research by integrated application of noble gas isotopes and other isotopic methods.
作为一个新的稳定同位素体系，正确运用这一体系对重大问题进行制约的前提和关键是对其质量分馏机理与过程有足够的认识。
As new stable isotope systems, the premise and key of using them to constrain important issues is to understand its fractionation mechanism and process adequately.
溢流玄武岩的同位素体系特征表明它们的源区涉及再循环地幔的壳幔混合、岩石圈减压熔融、上—下地幔过渡带和似原始-略亏损的下地幔。
Isotopic systematics of flood basalts indicate that their sources are involved in crust-mantle mixing in a recycled mantle, decompression melting of lithosphere.
为了区分同位素，不得不制定新的符号书写体系。
In order to differentiate between isotope, a new system of symbol writing had to be developed.
此研究方法可广泛应用于羟基矿物水体系的氢同位素分馏的实验研究。
This study method may widely apply to experimental studies of hydrogen isotope fractionation for systems hydroxyl minerals water.
在迄今所知的金属-氢体系中，钯氢体系的同位素效应最强，因此，钯被广泛用于氢同位素处理工艺中。
Palladium-hydrogen system has the largest isotope effect in the metal - (hydrogen) systems so far as we know, so palladium is widely used in hydrogen isotopes (disposal) technology.
同位素稀释分析是研究氮素在土壤植物体系中转化和迁移特征的有效方法。
Isotope dilution analysis is a valid approach for studying nitrogen transformation characteristics in soil-plant systems.
气体的碳、氦同位素资料表明其来自长英质岩浆体系；
C and O isotopic data demonstrate that these gases are derived from the felsic magma system;
概述了同位素封闭体系内的矿物氧扩散和同位素交换机制及其在地质速率计上的应用。
Oxygen diffusion in minerals and accompanied isotopic exchange inclosed systems are discussed with special application to geospeedometry.
矿物水体系氢同位素平衡分馏系数和动力分馏系数是同位素地球化学研究中的重要参数。
The hydrogen isotope equilibrium fractionation factors and kinetic fractionation parameters are the important basic data for the study of isotope geochemistry.
矿物水体系氢同位素平衡分馏系数和动力分馏系数是同位素地球化学研究中的重要参数。
The hydrogen isotope equilibrium fractionation factors and kinetic fractionation parameters are the important basic data for the study of isotope geochemistry.
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