地理学报 ›› 1980, Vol. 35 ›› Issue (35): 338-347.doi: 10.11821/xb198004006

• 论文 • 上一篇    下一篇

桂林盆地岩溶发育史的探讨

陈治平1, 刘金荣2   

  1. 1. 中国科学院地理研究所;
    2. 广西水文工程地质队
  • 出版日期:1980-10-15 发布日期:1980-10-15

THE DISCUSSION OF THE EVOLUTION HISTORY FOR GUILIN BASIN

Chen Zhiping1, Liu Jinrong2   

  1. 1. Institute of Geography, Academia Sinica;
    2. Hydrogeological Engineering Team in Guangxi
  • Online:1980-10-15 Published:1980-10-15

摘要: 桂林是我国著名的岩溶地区,其研究工作始于本世纪三十年代;解放后开展了大规模的勘探和研究.本文的目的就是在前人研究的基础上,总结地貌和地质工作的丰富资料,探讨桂林岩溶发育的历史。工作中得到地理所地图室清绘组的帮助,谨致谢意。

关键词: 桂林, 盆地, 剥蚀面, 岩溶发育史, 一级阶地, 间冰期, 第四纪, 峰林, 冠岩, 沉积物

Abstract: This paper depicts the characteristics of structural guomorphology for Guilin Basin,and suggests that this basin was down faulted in Cainozoic time from a peneplain form-ed during Late Cretaceous and Early Tertiary.The Early and Middle Pleistocene tectonic movement exerted remarkable influenceon landforms, causing the river to cut down 150 m. Since late Pleistocene, however, thetectonic movement has been insignificant, so that the local base level has not fluctuat-ed far from 142-148 m, which is the height of a denudation surface formed duringMiddle Pleistocene. That’s why the Guillin Basin still keeps the major feature of theMiddle Pleistocene.The evolution of morphology of the Guillin Basin is also influenced by climaticchanges. The alternation of glacial and interglacial periods caused the uplift and sub-sidence of sea level of the world, thus producing great impact on morphologic evolutionboth in the vicinity of the coast and on middle and lower reaches of big rivers. Afterstudying the characteristics of river terrace sediments of Lijiang, we think that thisriver was aggraded during interglacial period. while eroded during glacial period.