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-Pol-ypodiaceae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。
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...