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Geoscience ›› 2013, Vol. 27 ›› Issue (4): 778-985.

• Stratigraphy • Previous Articles     Next Articles

Application of Outcrop Sequence Stratigraphy on the Initial Exploration of Shale Gas in Upper Yangtze Region:Taking Niutitang Formation in Lower Cambrian as an Example

ZHANG Jun-peng1,2 ,FAN Tai-liang1,2 ,ZHANG Jin-chuan1,2 ,LI Yi-fan1,2,WU Yue1,2   

  1. Application of Outcrop Sequence Stratigraphy on the Initial Exploration of Shale Gas in Upper Yangtze Region:Taking Niutitang Formation in Lower Cambrian as an Example
  • Online:2013-08-10 Published:2013-08-07

Abstract: In this article, with the basic principle and method of sequence stratigraphy, the discrimination and contrast of Cambrian sequence in the Upper Yangtze region were made, and the plane and spatial distribution of sedimentary facies were studied within three-order sequences in Early Cambrian. During Early Cambrian, transgression happened continuously on the passive continental marginal side of Yangtze platform, so the systems tracts mainly included TST and HST, missing LST. Therefore, two sedimentation models of two stages, i.e. transgression stage and high stand stage were identified, which revealed the sedimentary characteristics of Cambrian sequence. Taking the black shale of Niutitang Formation in Lower Cambrian as an example, the shale reservoir was evaluated, and the result indicated that the sequence stratigraphy of outcrops was evaluable in the initial exploration of shale gas.

Key words: outcrop sequence stratigraphy, three-order sequence, distribution of sedimentary facies, exploration of shale gas

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