地理学报 ›› 1988, Vol. 43 ›› Issue (1): 19-34.doi: 10.11821/xb198801003

• 论文 • 上一篇    下一篇

韩江三角洲地貌发育的新认识

李平日, 黄镇国, 宗永强   

  1. 广州地理研究所
  • 出版日期:1988-01-15 发布日期:1988-01-15

NEW VIEWS ON GEOMORPHOLOGICAL DEVELOPMENT OF THE HANJIANG RIVER DELTA

Li Pingri, Huang Zhenguo, Zong Yongqiang   

  1. Guangzhou Institute of Geography
  • Online:1988-01-15 Published:1988-01-15

摘要: 韩江三角洲从晚更新世中期开始沉积,经历了Q32-1的古冲积扇、Q32-2的占三角洲、Q33的风化和新冲积扇、Q41—Q42-1的新三角洲、Q42-2的贝壳堤和沼泽以及Q43的沙堤-泻湖等六个发育阶段。发育模式为河流冲积扇与三角洲的交替发展。重新划分了三角洲的界线,面积为915.08km2。划分出二类十亚类地貌类型。

关键词: 韩江三角洲, 地貌发育过程, 现代地貌特征

Abstract: It is considered that geomorphological develoment of the Hanjiang River Delta is deeply affected by fault-block tectonics based on the analysis of sedimentology and chronology including the analysis of diatom, foraminfera, ostracoda, spore-pollen, shell, grain-size, trace element and heavy mineral, and datings of 14C and TL, from 40 borehole sections of the delta.

Key words: Hanjiang River Delta, Geomorphological development, Modern geomorpho-logical characteristics