Xinjiang Petroleum Geology ›› 2002, Vol. 23 ›› Issue (4): 279-282.

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On Seperation of North China Craton and Gas Bearing of Upper Paleozoic of Ordos Basin

AN Zuo-xiang, MA Ji   

  • Received:2001-11-12 Online:2002-08-01 Published:2020-08-10
  • About author:AN Zuo-xiang (1932-), Male, Professor of Engineering, Petroleum Geology, The Press of Petroleum Industry,Beijing 100011, China

Abstract: The term of North China Craton was firstly proposed by Mr. ZHAO Chong-yuan, which refers to that craton is separated as several blocks like Arashan, Ordos, Shanxi, Hehuai, Jiaoliao and those of northern Inner Mongolia by joint process of structural compressional pressure from west toward east and structural extension force from east following the Indo-Chinese epoch, Yanshan epoch and Himalayan epoch. The Upper Paleozoic in Ordos basin is a horizon given with coal-formed gas. Based on analyses of hydrocarbon source rock, petroleum migration, accumulation and trapping conditions, it is believed that there exist six gas bearing zones, including Wuda-Yinchuan, Hangjinqi, Dongsheng-Jingbian,Shenmu-Suide, Mizhi-Yan'an and Tianhuan depressions.

Key words: craton, source rock, secondary migration, Late Paleozoic, Ordos basin, gas field

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