Diffusion capacities of hydrocarbons in different source rocks are very different, which should be responsible for the carbon isotopic fractionation.
烃类分子在不同类型烃源岩中的扩散度差别很大，可能是造成同位素分馏的主要原因。
The result of the primary migration simulation suggests that there are different carbon isotopic fractionation effects in the primary migration of different source rocks.
通过初次运移模拟实验证明了烃类在不同类型烃源岩中发生初次运移能够产生不同程度的物理碳同位素分馏效应；
The consistency of carbon and hydrogen isotopic fractionation mechanisms determines that hydrogen isotopic fractionation can be described by using the carbon isotopic fractionation model.
分馏机理的一致性决定了碳同位素分馏模型可以成功地引入到氢同位素分馏研究中。
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