Late Quaternary Pollen Records and Climate Significance in
详细信息
- 责任者：Wang Xiaojing (Department of Earth Sciences ; Sun Yat-Sen University ; Guangzhou 510275 ; China) ; Wang Jianhua
- 刊名：Acta Scientiarum Naturalium Universitatis Sunyatseni
- 出版年：2010
- 卷期：49(3)
- 关键词：古气候 ; paleoclimate ; 孢粉组合 ; palynological assemblage ; 晚第四纪 ; Late Quaternary ; 广东 ; Guangdong Province
- 页码：p.113-121
- 图表：6 illus., 28 refs.
- 分类号：1400
- issnNo：ISSN0529-6579
- isbnNo：CN44-1241/N
摘要
Through the pollen analysis,combined with the informations on dating and sedimentation of two drilling cores located at different deposition-geomorphological area in the northern and southern part of Guangzhou,the deposition environmental and climatic changes since the late Pleistocene in Guangzhou,the Pearl River Delta,are suggested.Pollen records show that the climate during late Pleistocene changed as below: partially dry-cold,slightly cool-dry,warm-humid,hot-moisture below,partially cool-dry, cold-dry. The obvious influence from the Last Maximum Glaciation resulted in the difference of pollen assemblage characteristics between Holocene and late Pleistocene. The climate became generally warm and humid in the Holocene,but being alterated with some minor climatic fluctuation events,e.g.the most obvious partial dry-cool transition around 2250 a BP. Two transgressions have affected the delta during late Pleistocene and Holocene. Not only the variations of climatic and sea-level changes of two cores are consistent each other,but also a good correspondence between climate and sea-level change is shown.
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