| タイトル | Heterogenous Oxygen Isotopic Composition of a Complex Wark-Lovering Rim and the Margin of a Refractory Inclusion from Leoville |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140011746 |
| 著者（英） | Simon, S. B.; Simon, J. I.; Matzel, J. E. P.; Ross, D. K.; Hutcheon, I. D.; Weber, P. K.; Grossman, L. |
| 発行日 | 2014-03-17 |
| 言語 | eng |
| 内容記述 | Wark-Lovering (WL) rims [1] surrounding many refractory inclusions represent marker events in the early evolution of the Solar System in which many inclusions were exposed to changes in pressure [2], temperature [3], and isotopic reservoirs [4-7]. The effects of these events can be complex, not only producing mineralogical variability of WL rims [2], but also leading to mineralogical [8-10] and isotopic [7, 11, 12] changes within inclusion interiors. Extreme oxygen isotopic heterogeneity measured in CAIs has been explained by mixing between distinct oxygen gas reservoirs in the nebula [13]. Some WL rims contain relatively simple mineral layering and/or are isotopically homogeneous [14, 15]. As part of a larger effort to document and understand the modifications observed in some CAIs, an inclusion (L6) with a complex WL rim from Leoville, a member of the reduced CV3 subgroup was studied. Initial study of the textures and mineral chemistry was presented by [16]. Here we present NanoSIMS oxygen isotopic measurements to complement these petrologic observations. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| レポートNO | JSC-CN-30407 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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