地质通报2017，Vol.36Issue(2)：304-313,10.
新疆准噶尔盆地南缘二叠系芦草沟组烃源岩生物标志化合物特征及意义
The characteristics and significance of biomarker compounds in the Permian Lucaogou Formation hydrocarbon source rock on the southern margin of the Jung-gar Basin
摘要
Abstract
The accuracy of the evaluation result for the surface outcrop hydrocarbon source rock in the lower exploration degree area by using the traditional method is doubtful. Based on a study of such biomarkers as GC and GCMS, the authors evaluated the sedi-mentary environment, source rock kerogen type and maturity of the Permian Lucaogou Formation on the southern margin of the Junggar Basin.The Pr/Ph ratio of the hydrocarbon source rocks with an average of about 1 shows weak oxidation and weak reduction of sedimentary environments. The average value 0.15 for the gammacerane index and the high content of pregnanes indicate that the sedimentary environment was of high salinity, which was favorable for the enrichment of organic matter to a certain salinity for a weak redox sedimentary environment. The sterane C2920S(20S+20R) , C29αββ/(αββ+ααα) and C31 hopanes αβ22S/(22S+22R) values and some maturity parameter analysis show that the source rocks in the study area remain in the low mature to ma-ture stage. Emergence of tetracyclic terpane organic matter in source rocks and small regular sterane/17α(H)-hopane ratio parame-ters show that the early organic matter of the source rock was subjected to a certain degree of biodegradation.关键词
准噶尔盆地南缘/芦草沟组/烃源岩/生物标志化合物Key words
southern margin of Junggar Basin/Lucaogou Formation/hydrocarbon source rocks/biological marker compound分类
天文与地球科学引用本文复制引用
王炳凯,冯乔,田方正,张耀,徐子苏,李海斌,周海峰,秦宇,田瑞聪..新疆准噶尔盆地南缘二叠系芦草沟组烃源岩生物标志化合物特征及意义[J].地质通报,2017,36(2):304-313,10.基金项目
国家自然科学基金项目《半地堑陆相沉积的解剖及地层分析和对比方法》(批准号:41428201) （批准号:41428201）
