|Table of Contents|

Structural Feature and Tectonic Evolution of Western Slope in Jinhu Sag, Subei Basin(PDF)

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

Issue:
2011年第04期
Page:
349-353
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Structural Feature and Tectonic Evolution of Western Slope in Jinhu Sag, Subei Basin
Author(s):
ZHANG Hong-guo1; DAI Jun-sheng1; WANG Xia-tian2; FU Da-wei1
1. School of Geosciences, China University of Petroleum, Qingdao 266555, Shandong, China; 2. Research Institute of Exploration and Development, Xinjiang Oilfield Company, China National Petroleum Corporation, Karamay 834000, Xinjiang, China
Keywords:
structural feature;  tectonic evolution;  evolutionary phase;  fault activity;  Cenozoic;  western slope;  Jinhu Sag;  Subei Basin
PACS:
TE121.2
DOI:
-
Abstract:
Based on the interpretation of geological and geophysical data in Jinhu Sag, Subei Basin, according to the background and section of regional tectonic evolution, structural feature of Jinhu Sag was described, the stages of tectonic evolution of western slope in the sag were divided, and the characteristics of tectonic evolution were discussed. The results showed that the fault structure developed in western slope of Jinhu Sag; most of the faults were curving, and faults were mainly in small level; combination of fault was mainly extensional, and the trap of fault block developed; tectonic evolution of western slope during the Cenozoic could be divided into slope developing stage(Paleocene Funing Period), differential fluctuation stage(Eocene Dainan-Sanduo Period), overthrust folded stage(Late Eocene Sanduo Period)and structure stable stage(Neogene and Quaternary); Cenozoic tectonic activity was strong and weak in turn; difference of fault activity was significant, and intensity and scale of faulting during Paleocene Funing Period and Eocene Sanduo Period were comparatively strong; faults rose west and descended east during Cenozoic, and it was favorable to accumulate the oil and gas from the deep sag of eastern slope and to form oil/gas reservoir.

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Last Update: 2011-12-20