地理研究

地理研究 ›› 1987, Vol. 6 ›› Issue (1): 53-60.doi: 10.11821/yj1987010006

• 论文 • 上一篇    下一篇

秦岭太白山北麓砾石层的成因及第四纪古冰川问题*

徐建辉, 谢又予   

  1. 中国科学院、国家计划委员会地理研究所
  • 收稿日期:1985-09-16 修回日期:1986-03-18 出版日期:1987-03-15 发布日期:1987-03-15

ON THE ORIGIN OF GRAVELS AND QUATERNARY GLACIES AT THE NORTH FOOT OF TAI BAI MOUNTAIN IN QINLING

Xu Jianhui, Xie Youyu   

  1. Institute of Geograhy, Chinese Academy of Sciences and State Planning Commission of The PeoPle's Republic of China
  • Received:1985-09-16 Revised:1986-03-18 Online:1987-03-15 Published:1987-03-15

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摘要： 以直接发源于太白山北麓的几套砾石层为研究对象,从野外沉积特征和沉积物理化分析入手,对砾石层的成因作出解释,并为恢复该区第四纪古气候的演变过程及中国东部古冰川研究提供了依据。

关键词: 秦岭太白山, 第四纪, 冰川, 古气候

Abstract: This Paper deals with several gravels by studying their sedimentary characters in field and physioal-chemical targets in laboratory.Based on area contrast, these gravels belong to Early pleistocene, Middle pleistocene. Late pleistocene and Holocene sediments respec tively. We consider the origins of these gravels are the diluvium from the north slope.of TaiBai Mountain and the branch sediments of the south side of River wei, and not glacial or fluio-glacial deposits as uggested by some geologists. Being similar to the modern soil targets in the valley of River Wei, the physical-chemical targets of sediments show that these gravels are the outcomes of the warm and semi-humid climate environment.The ancient glacier never arrived at the foot area of Tai Bai Mountain during the Quaternary epach.