Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space
Abstract We report on a fragment of the quasicrystal-bearing CV3 carbonaceous chondrite Khatyrka recovered from fine-grained, clay-rich sediments in the Koryak Mountains, Chukotka (Russia). We show higher melting-point silicate glass cross-cutting lower melting-point Al-Cu-Fe alloys, as well as unam...
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ftdoajarticles:oai:doaj.org/article:41f17fc0b0f34684a3333816f7f9e972 2023-05-15T15:54:52+02:00 Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space Chaney Lin Lincoln S. Hollister Glenn J. MacPherson Luca Bindi Chi Ma Christopher L. Andronicos Paul J. Steinhardt 2017-05-01T00:00:00Z https://doi.org/10.1038/s41598-017-01445-5 https://doaj.org/article/41f17fc0b0f34684a3333816f7f9e972 EN eng Nature Portfolio https://doi.org/10.1038/s41598-017-01445-5 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-017-01445-5 2045-2322 https://doaj.org/article/41f17fc0b0f34684a3333816f7f9e972 Scientific Reports, Vol 7, Iss 1, Pp 1-14 (2017) Medicine R Science Q article 2017 ftdoajarticles https://doi.org/10.1038/s41598-017-01445-5 2022-12-31T11:56:18Z Abstract We report on a fragment of the quasicrystal-bearing CV3 carbonaceous chondrite Khatyrka recovered from fine-grained, clay-rich sediments in the Koryak Mountains, Chukotka (Russia). We show higher melting-point silicate glass cross-cutting lower melting-point Al-Cu-Fe alloys, as well as unambiguous evidence of a reduction-oxidation reaction history between Al-Cu-Fe alloys and silicate melt. The redox reactions involve reduction of FeO and SiO2 to Fe and Fe-Si metal, and oxidation of metallic Al to Al2O3, occurring where silicate melt was in contact with Al-Cu-Fe alloys. In the reaction zone, there are metallic Fe and Fe-Si beads, aluminous spinel rinds on the Al-Cu-Fe alloys, and Al2O3 enrichment in the silicate melt surrounding the alloys. From this and other evidence, we demonstrate that Khatyrka must have experienced at least two distinct events: first, an event as early as 4.564 Ga in which the first Al-Cu-Fe alloys formed; and, second, a more recent impact-induced shock in space that led to transformations of and reactions between the alloys and the meteorite matrix. The new evidence firmly establishes that the Al-Cu-Fe alloys (including quasicrystals) formed in outer space in a complex, multi-stage process. Article in Journal/Newspaper Chukotka Koryak Directory of Open Access Journals: DOAJ Articles Khatyrka ENVELOPE(175.288,175.288,62.062,62.062) Scientific Reports 7 1 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
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Medicine R Science Q Chaney Lin Lincoln S. Hollister Glenn J. MacPherson Luca Bindi Chi Ma Christopher L. Andronicos Paul J. Steinhardt Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space |
topic_facet |
Medicine R Science Q |
description |
Abstract We report on a fragment of the quasicrystal-bearing CV3 carbonaceous chondrite Khatyrka recovered from fine-grained, clay-rich sediments in the Koryak Mountains, Chukotka (Russia). We show higher melting-point silicate glass cross-cutting lower melting-point Al-Cu-Fe alloys, as well as unambiguous evidence of a reduction-oxidation reaction history between Al-Cu-Fe alloys and silicate melt. The redox reactions involve reduction of FeO and SiO2 to Fe and Fe-Si metal, and oxidation of metallic Al to Al2O3, occurring where silicate melt was in contact with Al-Cu-Fe alloys. In the reaction zone, there are metallic Fe and Fe-Si beads, aluminous spinel rinds on the Al-Cu-Fe alloys, and Al2O3 enrichment in the silicate melt surrounding the alloys. From this and other evidence, we demonstrate that Khatyrka must have experienced at least two distinct events: first, an event as early as 4.564 Ga in which the first Al-Cu-Fe alloys formed; and, second, a more recent impact-induced shock in space that led to transformations of and reactions between the alloys and the meteorite matrix. The new evidence firmly establishes that the Al-Cu-Fe alloys (including quasicrystals) formed in outer space in a complex, multi-stage process. |
format |
Article in Journal/Newspaper |
author |
Chaney Lin Lincoln S. Hollister Glenn J. MacPherson Luca Bindi Chi Ma Christopher L. Andronicos Paul J. Steinhardt |
author_facet |
Chaney Lin Lincoln S. Hollister Glenn J. MacPherson Luca Bindi Chi Ma Christopher L. Andronicos Paul J. Steinhardt |
author_sort |
Chaney Lin |
title |
Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space |
title_short |
Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space |
title_full |
Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space |
title_fullStr |
Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space |
title_full_unstemmed |
Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space |
title_sort |
evidence of cross-cutting and redox reaction in khatyrka meteorite reveals metallic-al minerals formed in outer space |
publisher |
Nature Portfolio |
publishDate |
2017 |
url |
https://doi.org/10.1038/s41598-017-01445-5 https://doaj.org/article/41f17fc0b0f34684a3333816f7f9e972 |
long_lat |
ENVELOPE(175.288,175.288,62.062,62.062) |
geographic |
Khatyrka |
geographic_facet |
Khatyrka |
genre |
Chukotka Koryak |
genre_facet |
Chukotka Koryak |
op_source |
Scientific Reports, Vol 7, Iss 1, Pp 1-14 (2017) |
op_relation |
https://doi.org/10.1038/s41598-017-01445-5 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-017-01445-5 2045-2322 https://doaj.org/article/41f17fc0b0f34684a3333816f7f9e972 |
op_doi |
https://doi.org/10.1038/s41598-017-01445-5 |
container_title |
Scientific Reports |
container_volume |
7 |
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1 |
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1766390099839287296 |