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On the Origin Types and Formation Periods of Fractures in Xujiahe Formation in West Sichuan Region

Hui He

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Abstract

According to analysing a large mount of the electro-imaging logging and drilling core datum in Xujiahe formation in West Sichuan region,the genetic types mainly including structural fractures,the filling and solution characteristics of fractures and non-structural genetic fractures are recognized,the formation periods of the fractures are divided into NE,NW and NEE.We think that the fracture of NW is early-cracking,the fracture of NE is second and the fractures of NEE is the last.And the fracture of NEE is the most favorable exploratory area.

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What this paper is about

According to analysing a large mount of the electro-imaging logging and drilling core datum in Xujiahe formation in West Sichuan region,the genetic types mainly including structural fractures,the filling and solution characteristics of fractures and non-structural genetic fractures are recognized,the formation periods of the fractures are divided into NE,NW and NEE.We think that the fracture of NW is early-cracking,the fracture of NE is second and the fractures of NEE is the last.And the fracture of NEE is the most favorable exploratory area.

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Available abstract

According to analysing a large mount of the electro-imaging logging and drilling core datum in Xujiahe formation in West Sichuan region,the genetic types mainly including structural fractures,the filling and solution characteristics of fractures and non-structural genetic fractures are recognized,the formation periods of the fractures are divided into NE,NW and NEE.We think that the fracture of NW is early-cracking,the fracture of NE is second and the fractures of NEE is the last.And the fracture of NEE is the most favorable exploratory area.

Key concepts: Geology, Fracture (geology), Geochemistry, Seismology, Paleontology

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