极地研究 ›› 2005, Vol. 16 ›› Issue (1-English): 55-58.

• 目次 • 上一篇    

Evidence for warmer event from quartz grains in the soil of Grove Mountains, East Antarctica

 Yan Xin, Li Xiaoli, Liu Xiaohan and Zhang Ru-fan   

  1. State Key Laboratory of Lithospheric Evolution, Institute of Geophysics, Chinese Academy of Sciences, Beijing 100029, China
  • 出版日期:1955-03-30 发布日期:1955-03-30
  • 通讯作者: Yan Xin

Evidence for warmer event from quartz grains in the soil of Grove Mountains,East Antarctica

Yan Xin, Li Xiaoli, Liu Xiaohan and Zhang Ru-fan   

  1. State Key Laboratory of Lithospheric Evolution, Institute of Geophysics, Chinese Academy of Sciences, Beijing 100029, China
  • Online:1955-03-30 Published:1955-03-30
  • Contact: Yan Xin

摘要:

The cold desert soil has been discovered at first time in southern ridge of Mount Harding, Grove Mountains of interior East Antarctica Ice Sheet.Based on the micro structural observation, dominant characteristics of quartz grains include: distinct surface stria and fractures, and clean features of frost action at both of crystal margins and micro crannies of quartz grains. These features show a pedogenesis environment of few water, short transportation and frost action, revealing a warmer climat- ic event existed in this region.

关键词: Grove Mountains, soil, quartz

Abstract:

The cold desert soil has been discovered at first time in southern ridge of Mount Harding, Grove Mountains of interior East Antarctica Ice Sheet.Based on the micro structural observation, dominant characteristics of quartz grains include: distinct surface stria and fractures, and clean features of frost action at both of crystal margins and micro crannies of quartz grains. These features show a pedogenesis environment of few water, short transportation and frost action, revealing a warmer climat- ic event existed in this region.

Key words: Grove Mountains, soil, quartz