|Table of Contents|

Marine Faura and Its Environmental Analysis of Xiangbai Formation in Yangfeng Village of Dushan County, South Guizhou(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2011年第04期
Page:
354-357,396
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Marine Faura and Its Environmental Analysis of Xiangbai Formation in Yangfeng Village of Dushan County, South Guizhou
Author(s):
LUO Wei12XIONG Fa-hui3SHI He1
1. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, Sichuan, China; 2. Institute of Zhanjiang Branch Company, China National Offshore Oil Corporation Limited, Zhanjiang 524057, Guangdong, China; 3. Institute of Geology,
Keywords:
marine fauna fossil environment palaeoecology lagoon Xiangbai Formation South Guizhou
PACS:
P532;Q915.8
DOI:
-
Abstract:
Xiangbai Formation was scarce of the fossil records which most parts were constituted of phytolite in South Guizhou. A marine fauna, which was comprised of the brachiopod, the coralline, the bryozoan, the cephalopod and the trace fossils, was discovered in Xiangbai Formation of Yangfeng Village of Dushan County. 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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Last Update: 2011-12-20