Hallis, L. (2017) D/H ratios of the inner Solar System. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 375(2094), 20150390. (doi: 10.1098/rsta.2015.0390) (PMID:28416726) (PMCID:PMC5394254)
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Abstract
The original hydrogen isotope (D/H) ratios of different planetary bodies may indicate where each body formed in the Solar System. However, geological and atmospheric processes can alter these ratios through time. Over the past few decades, D/H ratios in meteorites from Vesta and Mars, as well as from S- and C-type asteroids, have been measured. The aim of this article is to bring together all previously published data from these bodies, as well as the Earth, in order to determine the original D/H ratio for each of these inner Solar System planetary bodies. Once all secondary processes have been stripped away, the inner Solar System appears to be relatively homogeneous in terms of water D/H, with the original water D/H ratios of Vesta, Mars, the Earth, and S- and C-type asteroids all falling between δD values of −100‰ and −590‰. This homogeneity is in accord with the ‘Grand tack’ model of Solar System formation, where giant planet migration causes the S- and C-type asteroids to be mixed within 1 AU to eventually form the terrestrial planets.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Hallis, Dr Lydia |
| Authors: | Hallis, L. |
| College/School: | College of Science and Engineering > School of Geographical and Earth Sciences |
| Journal Name: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
| Publisher: | Royal Society |
| ISSN: | 1364-503X |
| ISSN (Online): | 1471-2962 |
| Published Online: | 17 April 2017 |
| Copyright Holders: | Copyright © 2017 The Author |
| First Published: | First published in Royal Society of London Philosophical Transactions A: Mathematical, Physical and Engineering Sciences 375(2094):20150390 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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