| タイトル | Correlations Between Surficial Sulfur and a REE Crustal Assimilation Signature in Martian Shergottites |
| 本文（外部サイト） | http://hdl.handle.net/2060/20150002847 |
| 著者（英） | Franz, H. B.; Jones, J. H. |
| 発行日 | 2015-03-16 |
| 言語 | eng |
| 内容記述 | Compared to terrestrial basalts, the Martian shergottite meteorites have an extraordinary range of Sr and Nd isotopic signatures. In addition, the S isotopic compositions of many shergottites show evidence of interaction with the Martian surface/ atmosphere through mass-independent isotopic fractionations (MIF, positive, non-zero delta(exp 33)S) that must have originated in the Martian atmosphere, yet ultimately were incorporated into igneous sulfides (AVS - acid-volatile sulfur). These positive delta(exp 33)S signatures are thought to be governed by solar UV photochemical processes. And to the extent that S is bound to Mars and not lost to space from the upper atmosphere, a positive delta(exp 33)S reservoir must be mass balanced by a complementary negative reservoir. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| レポートNO | JSC-CN-32887 |
| 権利 | No Copyright |
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