| タイトル | Li Isotope Studies of Olivine in Mantle Xenoliths by SIMS |
| 本文（外部サイト） | http://hdl.handle.net/2060/20050166979 |
| 著者（英） | Bell, D. R.; Hervig, R. L.; Buseck, P. R. |
| 著者所属（英） | Arizona State Univ. |
| 発行日 | 2005-01-01 |
| 言語 | eng |
| 内容記述 | Variations in the ratio of the stable isotopes of Li are a potentially powerful tracer of processes in planetary and nebular environments [1]. Large differences in the 7Li/6Li ratio between the terrestrial upper mantle and various crustal materials make Li isotope composition a potentially powerful tracer of crustal recycling processes on Earth [2]. Recent SIMS studies of terrestrial mantle and Martian meteorite samples report intra-mineral Li isotope zoning [3-5]. Substantial Li isotope heterogeneity also exists within and between the components of chondritic meteorites [6,7]. Experimental studies of Li diffusion suggest the potential for rapid isotope exchange at elevated temperatures [8]. Large variations in 7Li, exceeding the range of unaltered basalts, occur in terrestrial mantle-derived xenoliths from individual localities [9]. The origins of these variations are not fully understood. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
