Marine Faura and Its Environmental Analysis of Xiangbai Formation in Yangfeng Village of Dushan County , South Guizhou Province
详细信息
- 责任者：Luo Wei (Institute of Sedimentary Geology ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Xiong Fahui
- 刊名：Journal of Earth Sciences and Environment
- 出版年：2011
- 卷期：33(4)
- 关键词：腕足动物门 ; Brachiopoda ; 古生态学 ; paleoecology ; 贵州 ; Guizhou Province
- 页码：p.354-357,396
- 图表：3 illus., 1 table, 12 refs.
- 分类号：1103
- issnNo：ISSN1672-6561
- isbnNo：CN61-1423/P
摘要
Xiangbai Formation was scarce of the fossil records, most parts were constituted of phytolite in South Guizhou Province. According to the lithologic,mineral and deposit characteristics of the neighborhood in the horizon of marine fauna, on the basis of the fossils’ identify with the palaeoecology method, the results showed that the marine fauna lived in a desalted lagoon which mainly located between Pingtang County and Dushan County. The barriers of lagoon and open sea were mainly located in the northeast of Baizhe-Mawei with NW extension. In the north part, Xiangbai Formation had evolved with the main flood plain deposits near the Tuchang. The structure within the lagoon was complete, and the limited low-energy environment could form well hydrocarbon source rock. Therefore, the distribution has great significance on the study of lithofacies and paleogeography as well as the assemblage of the source-reservoir-seal association in oil and gas fields.
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