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Geoscience ›› 2009, Vol. 23 ›› Issue (6): 1093-1099.

• Petroleum geology • Previous Articles     Next Articles

The Thermal History of the Qinshui Basin in Shanxi Province

CHENG  Jin, WANG  Xin-Wen, WANG  Xiao-Niu   

  1. School of Earth Sciences and Resources,China University of Geosciences,Beijing100083,China
  • Received:2009-07-17 Revised:2009-11-06 Online:2009-12-29 Published:2012-02-16

Abstract:

The Qinshui Basin within the North China Craton is a potential area for natural gas exploration,and thus the thermal history is a key to evaluate the reservation of the natural gas in this basin.Using apatite fission track and vitrinite reflection modelling techniques,the thermal history of the Qinshui Basin in Shanxi Province was modelled.The temperature gradients of the Qinshui Basin changed with geological stages:3 ℃/100 m at Early Palaeozoic,2.5-3.0 ℃/100 m from Late Permian through Triassic,3.0-4.0 ℃/100 m at Early-Middle Jurassic,4.5-6.5 ℃/100 m at Late JurassicEarly Cretaceous,5.5-6.5 ℃/100 m at Late Cretaceous to Palaeogene,6.0 ℃/100 m at Late Palaeogene and 4.2 ℃/100 m at Early Neogene.Since Miocene to the present,the temperature gradient kept relatively stable at 3 ℃/100 m.

Key words: Qinshui Basin, apatite fission track, vitrinite reflectance, palaeo-temperature gradient, Shanxi

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