摘要
根据南黄海中部所取得的 3个柱状样岩心资料 ,对该区域的元素地球化学特征进行了分析研究 ,结果表明 :地层中元素的变化反映了物源沉积环境的改变 ,为划分地层提供了有效的信息 ;地层的元素含量 (Co、Cu、Ni、Pb)和元素与 Al比值在地层分界处发生突变 ,表明元素组合分布曲线可对地层进行分层 ;研究分析表明该区域Co、Ni、Pb和 Si可作为地层的特征元素。微量元素的富集因子与黄河、长江沉积物的富集因子可较好地用来区分长江、黄河沉积物 。
Trace and major elements were measured in sediment cores collected at the central South Yellow Sea.Changes of element contents reflect the material sources and sedimentary environmental changes.Element contents(Co,Cu,Ni and Pb)in strata and elements/Al ratios change suddenly in strata boundary,indicating distribution curves of element combinations can be divided into strata.Concentrations of Co,Ni,Pb and Si in this area can be regarded as characteristic elements of strata.Mean enrichment factors,calculated relative to the crustal abundance,can have some differences between the Yangtze and Yellow River sediments.These observations suggest the material sources of this area are associated with the Yellow River material.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2000年第2期33-38,共6页
Marine Geology & Quaternary Geology
基金
"八五"国家科技攻关项目!( 85 -90 4-0 1)
