• 责任者：Wei Jianshe (Xi’an Center of Geological Survey ; China Geological Survey ; Xi’an 710054 ; China) ; Lu Jincai
• 刊名：Geological Bulletin of China
• 出版年：2011
• 卷期：30(6)
• 关键词：烃源岩 ; source rocks ; 生物标志化合物 ; biomarkers ; 内蒙古 ; Inner Mongolia
• 页码：p.904-910
• 图表：9 illus., 3 tables, 14 refs.
• 分类号：1003
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

Based on a study of such biomarkers as n-alkanes, isoprenoid alkenes, terpane and sterane, the authors evaluated the sedimentary environment, source rock kerogen type and maturity of Permian Maihanhada Formation in Ejin Banner and its vicinities’/Ph ratios of most source rocks are lower than 1, and the phytane advantage is distinct, which shows that sedimentation of Permian Maihanhada Formation occurred in a reducing-highly reducing environment, which was beneficial for organic concentration, and the provenance was terrigenous higher plants and aquatic organisms, with the obvious input advantage of aquatic organisms. The relationship between Pr/nC17-Ph/nC₁₈ and C₂₇-C₂₈-C₂₉ sterane shows that the kerogen of Maihanhada Formation source rocks was mainly of the Ⅱ2 type.