南海东部ZSQD225柱状样的孢粉记录及其古环境意义  

Spore and pollen record from the Core ZSQD225 in eastern South China Sea and its paleoenvironmental significance

作　　者：荆夏[1,2] 陈芳[1,2] 高红芳[1,2] 李顺[1,2] 

机构地区：[1]国土资源部海底矿产资源重点实验室,广东广州510075 [2]广州海洋地质调查局,广东广州510075

出　　处：《地质学刊》2015年第1期76-80,共5页Journal of Geology

基　　金：中国地质调查局项目"1:100万海南岛幅海洋区域地质调查"(1212010611302)

摘　　要：对南海东部ZSQD225柱状样的孢粉记录的研究表明,自下而上可建立5个孢粉组合带:Ⅰ带:PolypodiaceaePinus-Quercus-Pteris-Cyathea;Ⅱ带:Quercus-Polypodiaceae-Pinus-Lycopodium-Gramineae;Ⅲ带:Polypodiaceae-Microlepia-Castanopsis-Pteris-Pinus;Ⅳ带:Podocarpus-Artemisia-Castanopsis-Polypodiaceae-Pinus;Ⅴ带:Artemisia-Castanopsis-Polypodiaceae-Pinus-Quercus,并依此划分了4个古气候古环境演化阶段。结果显示研究区经历了温暖潮湿—炎热潮湿—温暖湿润—温暖稍干的气候变化过程。通过与南海东部184站钻孔的对比,大致划分了ZSQD225柱状样的地层时代。Based on analysis of spore and pollen record from the core ZSQD225 in eastern South China Sea,five spore and pollen zones have been distinguished in an ascending order： Zone Ⅰ： Polypodiaceae-Pinus-Quercus-Pteris-Cyathea; Zone Ⅱ： Quercus-Polypodiaceae-Pinus- Lycopodium-Gramineae; Zone Ⅲ： Polypodiaceae-Microlepia-Castanopsis-Pteris-Pinus; Zone Ⅳ： Podocarpus-ArtemisiaCastanopsis-Polypodiaceae-Pinus; and Zone Ⅴ： Artemisia-Castanopsis- Polypodiaceae-Pinus-Quercus. The spore and pollen zones reflect four evolution stages of paleoclimate and paleoenviornment. Through comparsion with the core 184 in eastern South China Sea,stratigraphic chronology of the core ZSQD225 has been divided.

关 键 词：孢粉 古环境 南海东部 

分 类 号：P736.221[天文地球—海洋地质] Q914.81[天文地球—海洋科学]