广西科学院学报Issue(3)：167-172,186,7.
中国东部海区 bGDGTs 的含量分布及其与环境因子的关系
Distribution and Correlation with Environment Param-eters of Branched Glycerol Dialkyl Glycerol Tetraethers in Surface Sediments from the East Coastal Sea of Chi-na
摘要
Abstract
Objective]Most of the sediments in coastal region are terrigenous.The organic matter in coastal sediment can record the climate and environment change of the area.In this arti-cle,we analyzed and discussed the distribution and correlation with environment parameters of branched glycerol dialkyl glycerol tetraethers (bGDGTs )in surface sediment from the east coastal sea of China.[Methods]The distribution of bGDGTs in the surface sediment was analyzed using a high performance liquid chromatogra-phy-mass spectrometry (HPLC-MS).Based on this,the correlation between the distribution of bGDGTs and the environment factor was an-alyzed.[Results]We obtained that the concentration of bGDGTs in the east coastal sea of China (ECSC)shows different distribuyional style in different region.The bGDGTs concen-tration decreases with the increasing distance from coast in East China Sea (ECS),while it increases in the central muddy region of South Yellow Sea (SYS).The BIT value decreases with the increasing distance from shore except in the upwelling region off the Yangtze River Estuary.[Conclusion]The bGDGTs mainly come from terrigenous soil.There is also some bGDGTs contribution from ocean.The organic matter mainly is enriched in the muddy sedi-ment.The BIT can be used as an index to trace the relative abundance of terrigenous sources.The indexes of MBT and CBT cannot be applied as a paleotemperature in this re-gion.关键词
bGDGTs/分布/环境指示/中国东部海区Key words
bGDGTs/distribution/environmental implication/the east coastal sea of China分类
天文与地球科学引用本文复制引用
吕晓霞,陈加丽,杨阳,宋金明,李学刚,袁华茂,李宁..中国东部海区 bGDGTs 的含量分布及其与环境因子的关系[J].广西科学院学报,2015,(3):167-172,186,7.基金项目
中国科学院战略性先导科技专项项目(XDA11020102),国家自然科学基金项目(41376090),教育部博士点基金项目(20120145120017)和海洋地质保障工程项目(GZH201200503)联合资助。 （XDA11020102）
