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The age of Xiannü Mountain fracture belt in Three-Gorge region

—A fission track study

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Chinese Science Bulletin

Abstract

Apatite was separated from fault-clay, fracture-cliff rock and fracture wall rock, which were collected from Huangkou fracture north to Xiannü Mountain lying 20 km southwest to Three Gorges Dam Project-Sandouping dam. The fission tract characters and their length variations of apatite show that Xiannü Mountain fracture belt was formed at (0.7±0.04)Ma, but its wall rock at (25.31±2.8) Ma. This result and previous studies show that no activity has happened since the Holocene, and the Three Gorges Dam Project is not affected by activity of the Xiannü Mountain fracture belt.

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Authors and Affiliations

  1. State Key Laboratory of Environment Geochemistry, Guiyang Institute of Geochemistry, Chinese Academy of Sciences, 550002, Guiyang, China

    Feng Zhang & Wenzhu Lin

  2. Survey Academy, Commission of Three Gorges, Yangtze River, 443003, Yichang, China

    Jiyi Zhou

Authors
  1. Feng Zhang
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  2. Wenzhu Lin
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  3. Jiyi Zhou
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Zhang, F., Lin, W. & Zhou, J. The age of Xiannü Mountain fracture belt in Three-Gorge region. Chin.Sci.Bull. 44, 744–747 (1999). https://doi.org/10.1007/BF02909717

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  • DOI: https://doi.org/10.1007/BF02909717

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