Productivity of Eocene Ancient Lake and Enrichment Mechanism of Organic Matter in Huadian Basin
详细信息
- 责任者：Meng Qingtao (College of Earth Sciences ; Jilin University ; Changchun 130061 ; China) ; Liu Zhaojun
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(5)
- 关键词：古生产力 ; paleoproductivity ; 油页岩 ; oil shale ; 吉林 ; Jilin Province
- 页码：p.38-44
- 图表：3 illus., 2 tables, 21 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
Based on the geochemical research of mudstone and oil shale of Huadian formation,the productivity of Eocene Paleo-Huadian lake was qualitatively and quantitatively recovered by using the organic carbon method,and the water environments,paleoproductivity change during the lake evolution and enrichment mechanism of organic matter were discussed. The results show that the evolution order of paleoproductivity in Huadian Basin is middle oil shale member,upper coal member and lower pyrite member.The lakes during the lower member and upper member of Huadian formation are in obvious mesotrophic state and fresh hypoxic environment,and the average paleoproductivity is 143.82 g/(m2 ·a) and 153.26 g/(m2 ·a) respectively.High paleoproductivity is the first condition for organic matter enrichment of oil shale,and steady hypoxic environment in bottom water is the most favorable environment for organic matter enrichment.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |