• 责任者：Liu An (Wuhan Institute of Geology and Mineral Resources ; China Geological Survey ; Wuhan 430205 ; China) ; Li Xubing
• 刊名：Acta Sedimentologica Sinica
• 出版年：2013
• 卷期：31(6)
• 关键词：烃源岩 ; source rocks ; 储层地球化学 ; reservoir geochemistry ; 湖南 ; Hunan Province ; 湖北 ; Hubei Province
• 页码：p.1122-1132
• 图表：7 illus., 3 tables, 37 refs.
• 分类号：1003
• issnNo：ISSN1000-0550
• isbnNo：CN62-1038/P

     Based on the analysis of TOC, trace elements of 3 typical Cambrian stratigraphic sections from platform- slope-basin in west Hunan-Hubei area. V/（ V ＋ Ni） , U/Th, Ni/Co indicated Cambrian sediment turn from strong re- ducing environment to oxidized environment, and with a few oxidation-deoxidation sediment periodicity in slope zone. After normalized by NASC, θEu with positive anomaly and θCe with negative anomaly, and the abnormal degree showed a deeperwater from platform-slope-basin, as a whole regression after transgression in Cambrian. The environ ment of source rock in the bottom of Niutitang Formation was productive, strong reducing, and transgressive ; the high TOC shale probably has relationship with reductive, nutritive elements-rich hydrothermal fluid flow, which upwelled along deep fracture during the transition from Sinian to Cambrian, and also with episodicity upwelling.