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SPOROPOLLEN AND ALGAE RESEARCH ON DEEP-SEA SEDIMENTS IN THE SOUTH CHINA SEA AND ITS PALEOENVIRONMENT SIGNIFICANCE
Author(s): ZHANG Yulan
Pages: 73-
76
Year: 2003
Issue:
1
Journal: MARINE GEOLOGY & QUATERNARY GEOLOGY
Keyword: 深海; 沉积物; 孢粉; 藻类; 古环境; 南海;
Abstract: 对南海东南部323站深海柱状剖面高分辨率孢粉和藻类进行了研究,将323站从下至上划分为4个孢粉组合带,依次为:1带:Polypodiaceae-Pinus-Quercus(常绿)-Dacrydium-Gramineae;2带:Dicranopteris-Quercus(常绿)-Pinus-Polypodiaceae-Cyathea;3带:Polypodiaceae-Pinus-Cyperaceae-Quercus(常绿)-Lycopodium;4带:Dicranopteris-Pteridinium-Pinus-Cyathea-Polypodiaceae.并相应恢复了南海75 000 a以来4个植被、气候演替阶段,依次为:暖热而稍干的热带北缘半常绿季雨林-炎热、湿润的热带季雨林-暖热而稍干的热带北缘半常绿季雨林-炎热、湿润的热带季雨林,结合氧同位素测年资料,对323站地层时代划分作了讨论,为南海古气候、古环境演变研究提供了科学的依据.
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