摘要
中天山盆地群侏罗系湖相与三角洲相烃源岩的有机地球化学分析表明,不同沉积微相烃源岩具有不同的地球化学特征;河漫沼泽相和分流间湾相烃源岩存在C29>>C28>C27的甾烷分布特征,而湖相泥岩却表现出C29>C27>C28的分布特征;河漫沼泽微相-滨浅湖亚相-半深湖亚相-深湖亚相,随水体加深,C27甾烷的相对含量增加,C29甾烷的相对含量则减少,C29甾烷/C30藿烷值逐渐增加。
The organic analysis of Jurassic lacustrine and deltaic source rocks in middle Tianshan basins shows that different sedimentary microfacies source rocks have different geochemistry characteristics. There exist different steran distributional characters of C29>C27>C28 in lacustrine mudstones. With the deepening of water, the related contents of C27 increases, C29 decreases, hopanes of C29/C30 increase gradually in flood swamp microfacies, lakeshore-shallow subfacies, semideep la custrine subfacies, deep lacustrine subfacies.
出处
《江汉石油学院学报》
EI
CSCD
北大核心
2004年第3期57-58,共2页
Journal of Jianghan Petroleum Institute
