华东师范大学学报(自然科学版) ›› 2007, Vol. 2007 ›› Issue (2): 23-29.

• 地理学 河口海岸学 • 上一篇    下一篇

上海地区全新世沉积孢粉与古环境分析

贾丽

  

  1. 1.华东师范大学 地理系，上海 200062; 2.华东师范大学 河口海岸学国家重点实验室，上海 200062
  • 收稿日期:2005-11-11 修回日期:2006-12-24 出版日期:2007-03-25 发布日期:2007-03-25
  • 通讯作者: 贾丽

Pollen and Paloenvironment Analysis of Holocene in Shanghai Region(Chinese)

JIA Li1, YU Li-zhong1, ZHANG Wei-guo2   

  1. 1.Department of Geography, East China Normal University, Shanghai 20062, China; 2.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
  • Received:2005-11-11 Revised:2006-12-24 Online:2007-03-25 Published:2007-03-25
  • Contact: JIA Li

摘要： 通过对上海地区鹤鸣孔和东海1井两个钻孔进行孢粉分析鉴定和对比，结合AMS14C测年等资料，划分出了6个孢粉组合带，恢复了本区的植被演化和气候波动的6个阶段.对鹤鸣孔的大西洋期、亚北方期和亚大西洋期各划分出了两个孢粉组合亚带，反应了大气候环境下气候的次一级波动.在晚更新世晚期的硬绿色粘土中还发现了以环纹藻为主的孢粉组合，从孢粉学角度上证实了这一硬绿色粘土层“水成沉积”的观点.

关键词: 上海地区, 晚第四纪, 孢粉组合带, 古环境, 上海地区, 晚第四纪, 孢粉组合带, 古环境

Abstract: Through the analysis and contrast between HM core and Dh core, combined with the data of AMS14C, six pollen assemblages were ploted out. At the mean time, six stages about the vegetation change and climate fluctuation were rebuild. In addition, there were three subassemblages ploted out in the Atlantic period, SubBoreal period and SubAtlantic period, which reflected the less vibration of the largescale climatic change. Pollen assemblage dominated by Concentricystes in the hard and green clay of late Pleistocene can make it sure that the hard green clay layer was formed by water.

Key words: late Quaternary, pollen assemblage, paleoenvironment, Shanghai region, late Quaternary, pollen assemblage, paleoenvironment

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