Humayun, M. and Jurewicz, A. J. G. and Olinger, C. and Burnett, D. S. (2012) Evidence for Unfractionated Magnesium Isotopes in Genesis SOS Wafers. Meteoritics and Planetary Science, 47 (S1). A202-A202. ISSN 1086-9379. https://resolver.caltech.edu/CaltechAUTHORS:20121002-155323510
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Abstract
Oxygen isotopes measured by MegaSIMS on Genesis Concentrator samples indicate a solar wind (SW) oxygen isotope composition that is related to the ^(16)O-enriched CAI composition by a large mass dependent fractionation [I]. Isotope fractionation during acceleration of the solar wind is expected to create such a large mass fractionation, but a direct test of the presence of mass fractionation in the solar wind has not been possible with sufficient precision. Unlike O and Ne, Mg isotopes are sufficiently uniform in chondrites, terrestrial samples, and other meteoritic and planetary materials from the inner solar system [2], and so offer the best opportunity for a precise (±1‰) test of the Coulomb Drag mechanism for solar wind isotope fractionation.
| Item Type: | Article | |||||||||
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| Additional Information: | © 2012 Meteoritical Society. Issue published online: 6 Aug 2012. Article first published online: 8 Aug 2012. | |||||||||
| Issue or Number: | S1 | |||||||||
| Record Number: | CaltechAUTHORS:20121002-155323510 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20121002-155323510 | |||||||||
| Official Citation: | The 75th Annual Meeting of the Meteoritical Society Cairns, Australia, 12-17 August, 2012. Meteoritics & Planetary Science, 47: A35–A436. doi: 10.1111/j.1945-5100.2012.01401_2.x | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 34645 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 03 Oct 2012 14:40 | |||||||||
| Last Modified: | 09 Mar 2020 13:18 |
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