Thermal Evolution and History of the Permian Coal Measures in Yongmei Depression

• 责任者：Fang Hongfeng (School of Earth Sciences and Engineering ; Nanjing University ; Nanjing 210093 ; China) ; Yao Suping
• 刊名：Geological Journal of China Universities
• 出版年：2010
• 卷期：16(2)
• 关键词：煤系 ; coal measures ; 热演化 ; thermal evolution ; 烃源岩 ; source rocks ; 福建 ; Fujian Province ; 广东 ; Guangdong Province
• 页码：p.255-264
• 图表：6 illus., 2 tables, 26 refs.
• 分类号：1003
• issnNo：ISSN1006-7493
• isbnNo：CN32-1440/P

Taking Permian coal measures in Yongmei depression as an example, based on the determination of vitrinite reflectance and volatile index and combined with the study of geological background and thermal modeling, the thermal maturation of hydrocarbon source rocks and their distribution was analyzed, and the evolution history of hydrocarbon generation was constructed. The results show that, generally speaking, the coal hydrocarbon source rocks have attained the phase of post-mature-dry gas. Thermal evolution of the Permian source rocks was affected and metamorphosed by several thermal sources, among which the magmatic activities resulted in anomalously high metamorphism of marine source rocks in this region.