Aryl Isoprenoids Found in Late Cretaceous Qn1 Source Rocks in
详细信息
- 责任者：Huo Qiuli (Exploration and Development Research Institute ; PetroChina Daqing Oilfield Company ; Ltd. ; Daqing 163712 ; China) ; Li Zhenguang
- 刊名：Acta Sedimentologica Sinica
- 出版年：2010
- 卷期：28(4)
- 关键词：烃源岩 ; source rocks ; 松辽平原 ; Songliao Plain
- 页码：p.815-820
- 图表：5 illus., 1 table, 19 refs.
- 分类号：1003
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Aryl isoprenoids have been detected in Late Cretaceous shale in Qn1, Songliao Basin. It ranges from C13 to C23, and these compounds have a high concentration in some samples, the highest concentration can be above 30% of aromatic hydrocarbons. These samples are distributed in Chaochang area in southeast Songliao Basin. Aryl isoprenoids and some saturated hydrocarbon biomarkers suggested that the source rocks were deposited under a brackish and reducing and sulphate or sulphied rich water. The algae and chlorobiaceae are the main source of organic matter in source rocks. The distribution of Aryl isoprenoids indicated that there was a marine transgressional event in Songliao Lake during the Late Cretaceous and its direction may be from the southeast to northwest.