摘要
红珊瑚具有的生长环带结构可以记录生态环境变化的过程。采用同步辐射微聚焦X射线荧光光谱(SR-μXRF)技术研究红珊瑚横截面生长环带中主要元素Ca,过渡金属元素Cu、Fe、Mn和Zn,稀土元素Dy以及毒害元素Hg等含量的空间分布。结果显示,Ca元素随生命活动呈周期性变化,Fe元素含量变化能够反映出珊瑚生命活动的活跃程度,Hg元素能够反映珊瑚虫从幼年到成年的变化。应用同步辐射技术开展珊瑚横截面生长环带结构中元素分布和生态环境关系的研究,进而探讨珊瑚生态环境与海洋大环境关系,可以为了解海洋环境变化提供具有时间维度的信息。
Red coral has growth rings which can record the ecological environment information.In this study,the authors investigated the distribution of Ca,transition metal elements Mn,Fe,Cu and Zn,rare earth element Dy,and poison element Hg in the growth rings of red coral from Taiwan by synchrotron radiation micro Xray fluorescence spectrum(SR-μXRF).The results showed that Ca changed with the periodic variation of life activities,Fe changed with the active degree of coral life.The distribution of Hg could reflect changes in the coral skeleton from larvae to adult.The authors analyzed the relationship between elements distribution in the growth rings of red coral's cross section and ecological environment,and then investigated the relationship between red coral's ecological environment and the marine environment;On such a basis,some information could be obtained concerning marine environment variation with time dimension.
出处
《岩石矿物学杂志》
CAS
CSCD
北大核心
2016年第S1期106-110,共5页
Acta Petrologica et Mineralogica
