极地研究

极地研究 ›› 1997, Vol. 8 ›› Issue (2-English): 100-110.

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Surface textures of quartz grains from a core at the Prydz Bay, Antarctica

 Wang Xiangzhen, Wu shiguo, Li Chuanrong, Chen Hongxun and Luo Youlang   

  1. South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
  • 出版日期:1947-06-30 发布日期:1947-06-30
  • 通讯作者: Wang Xiangzhen
  • 基金资助:

    This project was supported by the State Antarctic Committee of China.

Surface textures of quartz grains from a core at the Prydz Bay, Antarctica

Wang Xiangzhen, Wu shiguo, Li Chuanrong, Chen Hongxun and Luo Youlang   

  1. South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
  • Online:1947-06-30 Published:1947-06-30
  • Contact: Wang Xiangzhen
  • Supported by:

    This project was supported by the State Antarctic Committee of China.

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摘要：

In this paper, shapes and surface textures of quartz grains in 13 layers of a core (NP95-1) collected from a continental slope at the Antarctic Prydz Bay were quantitatively and statistically analyzed. The quartz grain surfaces exhibit the characteristics caused by intense glaciation and a weaker chemical solution precipitation, indicating the sediments are mainly morainic debris under a low energy marine environment. The obtained quantitatively statistical results of the assemblages of surface textures caused by the chemical solution precipitation are well correlated to the analytical results of micropaleontologic analysis and can be used to better explain the changes of sedimentary environment and paleoclimate occurred in the marine zone concerned.

关键词: Antarctica, quartz grains, surface textures, quantitative statistics, sedimentary environment, paleoclimatic change

Abstract:

In this paper, shapes and surface textures of quartz grains in 13 layers of a core (NP95-1) collected from a continental slope at the Antarctic Prydz Bay were quantitatively and statistically analyzed. The quartz grain surfaces exhibit the characteristics caused by intense glaciation and a weaker chemical solution precipitation, indicating the sediments are mainly morainic debris under a low energy marine environment. The obtained quantitatively statistical results of the assemblages of surface textures caused by the chemical solution precipitation are well correlated to the analytical results of micropaleontologic analysis and can be used to better explain the changes of sedimentary environment and paleoclimate occurred in the marine zone concerned.

Key words: Antarctica, quartz grains, surface textures, quantitative statistics, sedimentary environment, paleoclimatic change