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The Winchcombe meteorite, a unique and pristine witness from the outer solar system

King, Ashley J., Daly, Luke, Rowe, James, Joy, Katherine H., Greenwood, Richard C., Devillepoix, Hadrien A. R., Suttle, Martin D., Chan, Queenie H. S., Russell, Sara S., Bates, Helena C., and others. (2022) The Winchcombe meteorite, a unique and pristine witness from the outer solar system. Science Advances, 8 (46). Article Number eabq3925. ISSN 2375-2548. (doi:10.1126/sciadv.abq3925) (KAR id:98305)

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Official URL:
https://doi.org/10.1126/sciadv.abq3925

Abstract

Direct links between carbonaceous chondrites and their parent bodies in the solar system are rare. The Winchcombe meteorite is the most accurately recorded carbonaceous chondrite fall. Its pre-atmospheric orbit and cosmic-ray exposure age confirm that it arrived on Earth shortly after ejection from a primitive asteroid. Recovered only hours after falling, the composition of the Winchcombe meteorite is largely unmodified by the terrestrial environment. It contains abundant hydrated silicates formed during fluid-rock reactions, and carbon- and nitrogen-bearing organic matter including soluble protein amino acids. The near-pristine hydrogen isotopic composition of the Winchcombe meteorite is comparable to the terrestrial hydrosphere, providing further evidence that volatile-rich carbonaceous asteroids played an important role in the origin of Earth’s water.

Item Type: Article
DOI/Identification number: 10.1126/sciadv.abq3925
Subjects: Q Science
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Funders: European Commission (https://ror.org/00k4n6c32)
UK Research and Innovation (https://ror.org/001aqnf71)
Science and Technology Facilities Council (https://ror.org/057g20z61)
Royal Society (https://ror.org/03wnrjx87)
SWORD Depositor: JISC Publications Router
Depositing User: JISC Publications Router
Date Deposited: 28 Nov 2022 12:21 UTC
Last Modified: 22 Feb 2023 12:16 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/98305 (The current URI for this page, for reference purposes)
King, Ashley J.: https://orcid.org/0000-0001-6113-5417
Daly, Luke: https://orcid.org/0000-0002-7150-4092
Joy, Katherine H.: https://orcid.org/0000-0003-4992-8750
Greenwood, Richard C.: https://orcid.org/0000-0002-5544-8027
Devillepoix, Hadrien A. R.: https://orcid.org/0000-0001-9226-1870
Suttle, Martin D.: https://orcid.org/0000-0001-7165-2215
Chan, Queenie H. S.: https://orcid.org/0000-0001-7205-8699
Russell, Sara S.: https://orcid.org/0000-0001-5531-7847
Bates, Helena C.: https://orcid.org/0000-0002-0469-9483
Bryson, James F. J.: https://orcid.org/0000-0002-5675-8545
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McIntyre, Mark: https://orcid.org/0000-0002-5769-4280
Suttle, Adam A.: https://orcid.org/0000-0002-6075-976X
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Grindrod, Peter M.: https://orcid.org/0000-0002-0934-5131
Pickersgill, Annemarie E.: https://orcid.org/0000-0001-5452-2849
Suttle, Fiona M.: https://orcid.org/0000-0003-1970-0034
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Wilcock, Hannah: https://orcid.org/0000-0002-1043-2267
Wilcock, Rob: https://orcid.org/0000-0001-8977-7956
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