地理研究

地理研究 ›› 1991, Vol. 10 ›› Issue (4): 2-11.doi: 10.11821/yj1991040001

• 论文 •    下一篇

珠江三角洲8000年来海平面变化*

方国祥, 李平日, 黄光庆   

  1. 广州地理研究所
  • 收稿日期:1991-06-14 出版日期:1991-12-15 发布日期:1991-12-15
  • 基金资助:
    *国家自然科学基金(第4880004项与第48970068项)

SEA LEVEL CHANGES IN ZHUJIANG DELTA DURING THE PAST 8000 YEARS

Fang Guoxiang, Li Pingri, Huang Guangqing   

  1. Guangzhou Institute of Geography
  • Received:1991-06-14 Online:1991-12-15 Published:1991-12-15

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摘要： 本文对9类古海面标志物的107个样品年代数据进行沉积深度棱正、构造升降幅度校正后,绘出珠江三角洲8000年来海平面变化曲线。珠江三角洲8000年来海平面变化可分为趾今6000年前海平面急剧上升、距今6000-5500年海平面波动下降、距今5500-2800年海平面波动上升、距今2800-2200年海平面波动下降、距今2200-900年海平面波动上升和距今900-600年海平面轻徽下降6个阶段。海平面变化曲线与化石硅藻垂向变化、孢粉反映的气候变化、滨岸沙堤形成期和古文化遗址堆积的变化等有较好的一致性。

关键词: 海平面变化, 珠江三角洲

Abstract: According to 107 dating data including 9 kinds of paleosea level indicators which the deposit depth and tectonism correction have done, the sea level change curve in Zhujiang Delta during the past 8000 years, has been drawn. Sea level rose quickly before 6000 years, descended from 6000 years B.P. to 5500 years B.P. rose from 5500 years B.P.to 2800 years B.P., descended from 2800 years B.P.to 2200 years B.P., rose from 2200 years B.P.to 900 years B.P. and descended slightly from 900 years B.P. to 600 years B.P. Each one included several shifts. The sea level change was in accord with the verticalchange of diatoms in core samples,the climate change reflected by sporo-pollen analyses of samples, the deposit periods of sand bar and the changes of ancientculture relics sites.

Key words: sea-level change, Zhujiang Delta