摘要
本文利用经典的红外光谱定量分析原理,选用798cm^(-1),775cm^(-1)和875cm^(-1)分别作为石英、长石和方解石的分析吸收带,测定了东海陆架表层沉积物中这三种矿物的百分含量,结果表明,这三种矿物在该陆架的含量变化范围为石英10—70%,长石25—65%,方解石5—40%。从内陆架到外陆架,南部区域到北部区域其含量分布各有差异,主要与物质来源和沉积时代有关。
Quartz,feldspar and calcite from sea can be quantitatively determined on the classical principle of infrared spectroscopic quantitative analysis.Analytical absorbing bands,798 cm^(-1),775cm^(-1)and 875cm^(-1),were used respectively for the three minerals.The method has the advantages of simplicity,accuracy and material-saving.The sources and distributions of quartz,feldspar and calcite in sediments from the East China Sea are briefly discussed in the paper.
作者
杨和福
Yang Hefu(Second Institute of Oceanography,SOA,Hangzhou)
出处
《海洋与湖沼》
1987年第6期575-582,共8页
Oceanologia Et Limnologia Sinica
