南海深海沉积中的孢粉记录及其古环境

张玉兰

张玉兰. 南海深海沉积中的孢粉记录及其古环境[J]. 海洋地质与第四纪地质, 2009, 29(1): 25-29. DOI: 10.3724/SP.J.1140.2009.01025
引用本文: 张玉兰. 南海深海沉积中的孢粉记录及其古环境[J]. 海洋地质与第四纪地质, 2009, 29(1): 25-29. DOI: 10.3724/SP.J.1140.2009.01025
ZHANG Yulan. PALYNOLOGICAL RECORDS ON DEEP-SEA SEDIMENTS IN THE SOUTH CHINA SEA AND ITS PALEOENVIRONMENT[J]. Marine Geology & Quaternary Geology, 2009, 29(1): 25-29. DOI: 10.3724/SP.J.1140.2009.01025
Citation: ZHANG Yulan. PALYNOLOGICAL RECORDS ON DEEP-SEA SEDIMENTS IN THE SOUTH CHINA SEA AND ITS PALEOENVIRONMENT[J]. Marine Geology & Quaternary Geology, 2009, 29(1): 25-29. DOI: 10.3724/SP.J.1140.2009.01025

南海深海沉积中的孢粉记录及其古环境

基金项目: 

国家自然科学基金项目(40276021),华东师范大学河口海岸国家重点实验室基金项目(200704)

详细信息
    作者简介:

    张玉兰(1946-),女,教授,主要从事孢粉、藻类及海洋地质研究,E-mail:zhangyl@mail.tongji.edu.cn

  • 中图分类号: P736.2

PALYNOLOGICAL RECORDS ON DEEP-SEA SEDIMENTS IN THE SOUTH CHINA SEA AND ITS PALEOENVIRONMENT

  • 摘要: 通过对南海69站深海柱状剖面的孢粉成分的变化将该孔沉积层从下至上划分为5个孢粉组合带,1带:Quercus(常绿)-Pinus-Cyathea-Artemisia孢粉带(552.5~470 cm);2带:Pinus-Podocarpus-Quercus-Polypodiaceae孢粉带(470~350 cm);3带:Quercus(常绿)-Castanopsis-Pinus-Polypodiaceae孢粉带(350~250 cm);4带:Pinus-Podocarpus-Artemisia-Polypodiaceae孢粉带(250~140 cm);5带:Podocarpus-Cyathea-Quercus(常绿)-Pinus-Polypodiaceae孢粉带(140~0 cm)。并相应恢复了南海东部64 ka以来3个植被、气候、古环境演替阶段,热带季雨林、热带北缘半常绿季雨林和热带季雨林。对69站柱状地层时代作了划分,孢粉1带相当于氧同位素3期,时代为Q33-2;孢粉2~4带相当于氧同位素2期,时代为Q33-3;孢粉5带为氧同位素1期,时代为Q4
    Abstract: Based on the sporopollen and algae research of the deep-sea sediments at core 69 in the South China Sea, five sporopollen zones have been distinguished in ascending order as follows:
    Zone 1(552.5~470 cm):Quercus(evergreen)-Pinus-Cyathea-Artemisia;
    Zone 2(470~350 cm):Pinus-Podocarpus-Quercus-Polypodiaceae;
    Zone 3(350~250 cm):Quercus(evergreen)-Castanopsis-Pinus-Polypodiaceae;
    Zone 4(250~140 cm):Pinus-Podocarpus-Artemisia-Polypodiaceae;
    Zone 5(140~0 cm):Podocarpus-Cyathea-Quercus(evergreen)-Pinus-Polypodiaceae.
    The sporopollen zones reflect three stages of vegetation, climate and paleoenvironment evolution of the South China Sea since 64 000 years ago. The three stages were as follows:hot and wet tropical monsoon rain forest, northern tropic semievergreen monsoon rain forest and hot and wet tropical monsoon rain forest. Combined with oxygen isotope dating, the sporopollen and algae data can be used as one of the science evidences for stratigraphic division and reconstruction of paleoclimate and paleoenvironment in the South China Sea. Palynological zone 1 is oxygen isotope 3,stratigraphic time is Q33-2; Palynological zone 2 to 4 are oxygen isotope 2,stratigraphic time is Q3 3-3; Palynological zone 5 is oxygen isotope 1,stratigraphic time is Q4.
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出版历程
  • 收稿日期:  2008-10-06
  • 修回日期:  2008-10-31

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