地理研究

地理研究 ›› 1989, Vol. 8 ›› Issue (4): 72-77.doi: 10.11821/yj1989040009

• 研究报告 • 上一篇    下一篇

晚更新世晚期冰期鼎盛时期华南沿海地区的古环境*

杨达源1, 冯文科2, 陈俊仁2   

  1. 1. 南京大学大地海洋科学系;
    2. 地质矿产部南海地质调查指挥部
  • 收稿日期:1987-06-25 修回日期:1989-04-20 出版日期:1989-12-15 发布日期:1989-12-15
  • 基金资助:
    * 国家自然科学基金

THE PALEOENVIRONMENT OF THE COASTAL REGION, SOUTH CHINA DURING THE LAST GLACIAL MAXIMUM OF LATE PLEISTOCENE

Yang Dayuan1, Feng Wenke2, Chen Junren2   

  1. 1. Nanjing University;
    2. South China Sea Headquaters of Geological Survey, Ministry of Geology and Mineral Resourees
  • Received:1987-06-25 Revised:1989-04-20 Online:1989-12-15 Published:1989-12-15

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摘要： 本文讨论末次冰期鼎盛时期华南沿海地区的古环境特征。对有关单位近年调查成果的分析,估计当时该地区的冬季温度比今低11-15℃,2月海洋表层水温此今低4.6-2.2℃,珠江三角洲地区河流深切达-40-62m以下,古海岸线推移到今水深150m左右深处。达主要是冰期世界气候寒冷,海面大幅度下降,东亚冬季风强盛、南海北部东北季风漂流增强的结果。

关键词: 古环境特征, 晚更新世晚期, 华南沿海地区

Abstract: In this paper,mainly based on the studies for some time past,the authors summarized the paleoenvironmental features of the coastal region of South China during the full-glacial period of Late Pleistocene.They estimated the difference in the environment conditions between modern a.d LGM as follows.(1) On the average,the winter temperature of the land was lowered 11-15℃ or so.(2) The paleochannel bottom reached a depth of -62m or so at the present debouch of the Zhujiang delta,(3) The paleo-coastline was situated at 150m or so below the present sea-level.(4) The February temperature of the upper water in the northern part of South China Sea was lowered about 4.6-2.2℃ The above-mentioned features resulted from increasing of winter monsoon in the coastal region of South China and from increasing of north-east monsoon drift in the northern part of South Chins Sea during the last glacial maximum of Late Pleistocene

Key words: Paleoenvironmental features. Late Pleistocene, the coastal region of South China