[S-GC38] 固体地球化学・惑星化学

[SGC38-P05] Trace element and Pb-Nd-Sr isotopic composition of standard rock samples

*下田 玄¹ (1.産業技術総合研究所地質調査総合センター)

キーワード：標準岩石試料、微量元素組成、同位体組成

In order to understand magmatic processes in the Earth, trace element and isotopic compositions are im@portant. To confirm geochemical data analized in our laboratory, I will analize 30 trace element and Pb-Nd-Sr isotopic compositions of 30 GSJ and USGS standard rock samples. In this paper, I will present detailed analytical proceadure in the laboratory and discuss accurasy of the determined data.