Oil & Gas Geology ›› 2003, Vol. 24 ›› Issue (2): 116-122.doi: 10.11743/ogg20030203

Previous Articles     Next Articles

INDOSINIAN NAPPE STRUCTURE AND ITS HYDROCARBON SIGNIFICANCE IN HEFEI BASIN AND NORTH HUAIYANG TECTONIC ZONE

Cao Gaoshe1,2,3, Li Xuetian2, Liu Deliang3, Zhou Songxing4, Gao Yijun 4   

  1. 1. Research Center of Earth Sciences, Zhengzhou University, Zhengzhou, Henan;
    2. Geological Resarch Institute of Shengli Oilfield Company, Dongying, Shandong;
    3. Earth and Space College, China University of Sciences and Technology, Hefei, Anhui;
    4. Anhui Exploration Dep. of Jiangsu Bureau of Petroleum Exploration, Yangzhou, Jiangsu
  • Received:2002-11-19 Online:2003-06-25 Published:2012-01-16

Abstract:

On the basis of analysing drilling and logging data and geophysical profiles, nappe structures in north Huaiyang tectonic zone have been studied,and the existence,pattern, dynamic background and hydrocarbon significance of Indosinian nappe structures have also been discussed.It is suggested that the unified nappe structural system might be composed of north Huaiyang tectonic zone and Hefei basin in Indosinian period, and the dynamic background might be resulted from the intra-continental subduction of deep crust of North China plate towards the inner orogenic zone.The Indosinian tectonic movement belongs to typical continental structures,and the thrusting nappe structures formed in the Indosinian period might be favorable to hydrocarbon preservation.

Key words: nappe structure, intra-continental subduction, Hefei basin, north Huaiyang tectonic zone

CLC Number: