Showing papers by "Eizo Nakamura published in 1998"

TL;DR: Li isotope was analyzed in island arc volcanics from the Izu arc, Japan, to investigate geochemical processes in subduction zones as discussed by the authors, showing that the amount of subduction component as a fluid added to the source region decreases with depth.

TL;DR: In this paper, a high-yield lithium separation technique for rock and aqueous samples has been established together with precise Li isotope analysis by thermal ionization mass spectrometry.

TL;DR: In this paper, diffusivities of geochemically important trace elements (eleven rare earth elements (REE), Rb, Sr, Ba, and Y) in jadeite and diopside melts and those of Zr, Nb, Th, and U in Jadeite melt have been measured at pressures between 7.5 and 20 kbar and at temperatures 50-200° above the liquidus, using diffusion couples and ion microprobe analysis.