Characteristics and Significance of Sedimentary Organic Matter in the Paleogene of Lunpola Basin, Central Tibet
详细信息
- 责任者：Sun Tao (School of Earth Sciences and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Wang Chengshan
- 刊名：Geochimica
- 出版年：2012
- 卷期：41(6)
- 关键词：生物标志化合物 ; biomarkers ; 沉积盆地 ; sedimentary basins ; 西藏 ; Tibet
- 页码：p.530-537
- 图表：3 illus., 2 tables, 20 refs.
- 分类号：1003
- issnNo：ISSN0379-1726
- isbnNo：CN44-1398/P
摘要
Eleven source rock samples were collected from two cross-sections in the Dingqinghu and Niubao formations of Lunpola Basin for organic petrological and organic geochemical analyses.The results indicated that the shales of Dingqinghu Formation were deposited in a semi-deep to deep lake facies.They contained type I and II1 (oil prone) organic matter, and had TOC contents ranging from 2.84% to 6.92% and vitrinite reflectance data varing between 0.46% and 0.63%.The mudstones and shales of Niubao Formation were deposited in a shore-shallow lake facies,They had TOC ranging from 0.25% to 5.99%, type I and II1 (oil prone) organic matter, and vitrinite reflectance data varing between 0.49% and 0.66%.