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Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago
Meteorite magnetizations can provide rare insight into early Solar System evolution. Such data take on new importance with recognition of the isotopic dichotomy between non-carbonaceous and carbonaceous meteorites, representing distinct inner and outer disk reservoirs, and the likelihood that parent...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7716897/ https://www.ncbi.nlm.nih.gov/pubmed/33283201 http://dx.doi.org/10.1038/s43247-020-00055-w |
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author | O’Brien, Timothy Tarduno, John A. Anand, Atma Smirnov, Aleksey V. Blackman, Eric G. Carroll-Nellenback, Jonathan Krot, Alexander N. |
author_facet | O’Brien, Timothy Tarduno, John A. Anand, Atma Smirnov, Aleksey V. Blackman, Eric G. Carroll-Nellenback, Jonathan Krot, Alexander N. |
author_sort | O’Brien, Timothy |
collection | PubMed |
description | Meteorite magnetizations can provide rare insight into early Solar System evolution. Such data take on new importance with recognition of the isotopic dichotomy between non-carbonaceous and carbonaceous meteorites, representing distinct inner and outer disk reservoirs, and the likelihood that parent body asteroids were once separated by Jupiter and subsequently mixed. The arrival time of these parent bodies into the main asteroid belt, however, has heretofore been unknown. Herein, we show that weak CV (Vigarano type) and CM (Mighei type) carbonaceous chondrite remanent magnetizations indicate acquisition by the solar wind 4.2 to 4.8 million years after Ca-Al-rich inclusion (CAI) formation at heliocentric distances of ~2–4 AU. These data thus indicate that the CV and CM parent asteroids had arrived near, or within, the orbital range of the present-day asteroid belt from the outer disk isotopic reservoir within the first 5 million years of Solar System history. |
format | Online Article Text |
id | pubmed-7716897 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-77168972020-12-04 Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago O’Brien, Timothy Tarduno, John A. Anand, Atma Smirnov, Aleksey V. Blackman, Eric G. Carroll-Nellenback, Jonathan Krot, Alexander N. Commun Earth Environ Article Meteorite magnetizations can provide rare insight into early Solar System evolution. Such data take on new importance with recognition of the isotopic dichotomy between non-carbonaceous and carbonaceous meteorites, representing distinct inner and outer disk reservoirs, and the likelihood that parent body asteroids were once separated by Jupiter and subsequently mixed. The arrival time of these parent bodies into the main asteroid belt, however, has heretofore been unknown. Herein, we show that weak CV (Vigarano type) and CM (Mighei type) carbonaceous chondrite remanent magnetizations indicate acquisition by the solar wind 4.2 to 4.8 million years after Ca-Al-rich inclusion (CAI) formation at heliocentric distances of ~2–4 AU. These data thus indicate that the CV and CM parent asteroids had arrived near, or within, the orbital range of the present-day asteroid belt from the outer disk isotopic reservoir within the first 5 million years of Solar System history. Nature Publishing Group UK 2020-12-04 2020 /pmc/articles/PMC7716897/ /pubmed/33283201 http://dx.doi.org/10.1038/s43247-020-00055-w Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article O’Brien, Timothy Tarduno, John A. Anand, Atma Smirnov, Aleksey V. Blackman, Eric G. Carroll-Nellenback, Jonathan Krot, Alexander N. Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago |
title | Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago |
title_full | Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago |
title_fullStr | Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago |
title_full_unstemmed | Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago |
title_short | Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago |
title_sort | arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7716897/ https://www.ncbi.nlm.nih.gov/pubmed/33283201 http://dx.doi.org/10.1038/s43247-020-00055-w |
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