Xinjiang Petroleum Geology

Xinjiang Petroleum Geology ›› 2004, Vol. 25 ›› Issue (5): 563-567.

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Determination of Boundary between Upper and Lower Carboniferous in Xinjiang

DU Pin-de1, WANG Kun-ru1, TAN Ze-jin1, ZHANG Gui-zhi2, ZHAO Zhi-xin1   

  1. 1. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 84 1000, China;
    2. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2003-10-24 Revised:2004-02-03 Published:2021-01-13

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Abstract: Restudy is made on Xinjiang Carboniferous sections such as mid-Tianshan mountain section, Mazatag mountain section which was measured in recent years in Tarim basin and Carboniferous section in southwestern margin of Tarim basin, as well as related drilling sections in Taklamakan desert covered area. According to the decision on the intermediate boundary of Carboniferous presented by the international stratigraphy commission, the re-determined boundary between Upper and Lower Carboniferous in Xinjiang has been placed at the upper part of Yeliemedun formation in Aqialehe section of Beluoheluo mountain of Tians han mountains, between Heshilapu formation in Mazatag section and Karawuy formation in He 'ai forestry section in southwestern margin of Tarim basin, the lower part of top limestone member of Karawuy formation in Well Lunnan-59 and the upper part of sandstone-mudstone member of Karasay formation in Well 401 in Tazhong uplift.

Key words: Xinjiang, Carboniferous, boundary

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