摘要
应用Rock-eval、饱和烃气相色谱、色谱-质谱、有机显微组分分析等分析测试手段,对鸡西盆地鱼亮子沟城子河组海相泥岩进行了有机地球化学分析。从有机碳含量、热解参数、可溶有机质含量、饱和烃生物标志化合物等方面综合分析了烃源岩的有机质丰度、类型和成熟度,并探讨了有机质的沉积环境和生源特征。结果表明:鸡西盆地鱼亮子沟海相泥岩有机碳含量高,属于中等—好的生油岩范畴;有机质类型为ⅡA型,处于成熟阶段;沉积环境为含盐度较高、咸化的开阔水体环境;有机质生源以低等水生生物为主,也有部分陆生生源。
The authors analyzed the geochemical characters of the marine mudstone from the Chengzihe Formation of Yuliangzigou in Jixi Basin by means of Rock-eval, GC, GC-MS, analysis of organic compositions, etc. A comprehensive study on organic matter abundance, type and maturity was made, based on the organic carbon and soluble organic matter in content, parameters of pyrolysis, biomarker characters of saturated hydrocarbon; and the sedimentary environment and bio-input of organic matter were discussed. The results show that most of the Yuliangzigou marine mudstone with organic carbon in relatively high content, belong to medium- good source rocks, which is of type Ⅱ A in the maturity stage. The sedimentary environment is the open and highly salty water. Organic bio-inputs mainly are aquatic low organisms.
出处
《世界地质》
CAS
CSCD
2007年第2期194-198,共5页
World Geology
基金
国家油气资源战略选区专项(XQ-2004-07)
