Journal article
The Winchcombe meteorite, a unique and pristine witness from the outer solar system
- 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.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, pdf, 1.1MB, Terms of use)
-
- Publisher copy:
- 10.1126/sciadv.abq3925
Authors
- Publisher:
- American Association for the Advancement of Science
- Journal:
- Science Advances More from this journal
- Volume:
- 8
- Issue:
- 46
- Article number:
- eabq3925
- Publication date:
- 2022-11-16
- Acceptance date:
- 2022-09-23
- DOI:
- EISSN:
-
2375-2548
- Language:
-
English
- Keywords:
- Pubs id:
-
1279954
- Local pid:
-
pubs:1279954
- Deposit date:
-
2022-09-27
Terms of use
- Copyright holder:
- King et al.
- Copyright date:
- 2022
- Rights statement:
- Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
If you are the owner of this record, you can report an update to it here: Report update to this record