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Rock in Middle -upper Yangtze Area in Lower Palaeozoic Era
Author(s): 
Pages: 203-208
Year: Issue:  3
Journal: Resources Environment & Engineering

Keyword:  烃源岩干酪根可溶有机质成熟度碳同位素中上扬子区;
Abstract: 介绍中上扬子区下组合(上震旦统及下古生界)烃源岩有机质碳同位素组成特征,探讨碳同位素“逆转”的成因及高—过成熟烃源岩可溶有机质碳同位素的应用。研究认为,中上扬子区高—过成熟的上震旦统及下古生界烃源岩有机质碳同位素“逆转”的内因主要是不同物质或组分在高—过成熟不同演化阶段具不同的碳同位素分馏速率;氯仿沥青“A”饱和烃碳同位素值与成熟度密切相关,是高—过成熟烃源岩成熟度的较好表征指标;直接应用高—过成...
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