Alteration of interstellar organic materials in meteorites' parent bodies: A novel route for diamond formation

Hideyuki Nakano; Akira Kouchi; Masahiko Arakawa; Yuki Kimura; Chihiro Kaito; Hiroshi Ohno; Takeo Hondoh

doi:10.2183/pjab.78.277

Alteration of interstellar organic materials in meteorites' parent bodies: A novel route for diamond formation

Hideyuki Nakano, Akira Kouchi, Masahiko Arakawa, Yuki Kimura, Chihiro Kaito, Hiroshi Ohno, Takeo Hondoh

SCI - Earth Science

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Based on experiments that model interstellar organic materials, we found that both C and N contents and IR spectra of insoluble organic materials in carbonaceous chondrites could be reproduced well by the aqueous alteration and the subsequent thermal metamorphism. The resulting sample shows strong evidence of diamond, which indicates that this process is an unexpected mechanism that might produce extensive amount of diamond in meteorites' parent bodies. Because this process requires neither high pressures nor energetic processes, the present results suggest an alternate origin of diamonds in meteorites.

Original language	English
Pages (from-to)	277-281
Number of pages	5
Journal	Proceedings of the Japan Academy Series B: Physical and Biological Sciences
Volume	78
Issue number	9
DOIs	https://doi.org/10.2183/pjab.78.277
Publication status	Published - 2002 Nov

Keywords

Aqueous alteration
Carbonaceous chondrite
Diamond
Interstellar organic materials
Meteorite
Thermal metamorphism

ASJC Scopus subject areas

Agricultural and Biological Sciences(all)
Physics and Astronomy(all)

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10.2183/pjab.78.277

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abstract = "Based on experiments that model interstellar organic materials, we found that both C and N contents and IR spectra of insoluble organic materials in carbonaceous chondrites could be reproduced well by the aqueous alteration and the subsequent thermal metamorphism. The resulting sample shows strong evidence of diamond, which indicates that this process is an unexpected mechanism that might produce extensive amount of diamond in meteorites' parent bodies. Because this process requires neither high pressures nor energetic processes, the present results suggest an alternate origin of diamonds in meteorites.",

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T1 - Alteration of interstellar organic materials in meteorites' parent bodies

T2 - A novel route for diamond formation

AU - Nakano, Hideyuki

AU - Kouchi, Akira

AU - Arakawa, Masahiko

AU - Kimura, Yuki

AU - Kaito, Chihiro

AU - Ohno, Hiroshi

AU - Hondoh, Takeo

PY - 2002/11

Y1 - 2002/11

N2 - Based on experiments that model interstellar organic materials, we found that both C and N contents and IR spectra of insoluble organic materials in carbonaceous chondrites could be reproduced well by the aqueous alteration and the subsequent thermal metamorphism. The resulting sample shows strong evidence of diamond, which indicates that this process is an unexpected mechanism that might produce extensive amount of diamond in meteorites' parent bodies. Because this process requires neither high pressures nor energetic processes, the present results suggest an alternate origin of diamonds in meteorites.

AB - Based on experiments that model interstellar organic materials, we found that both C and N contents and IR spectra of insoluble organic materials in carbonaceous chondrites could be reproduced well by the aqueous alteration and the subsequent thermal metamorphism. The resulting sample shows strong evidence of diamond, which indicates that this process is an unexpected mechanism that might produce extensive amount of diamond in meteorites' parent bodies. Because this process requires neither high pressures nor energetic processes, the present results suggest an alternate origin of diamonds in meteorites.

KW - Aqueous alteration

KW - Carbonaceous chondrite

KW - Diamond

KW - Interstellar organic materials

KW - Meteorite

KW - Thermal metamorphism

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Alteration of interstellar organic materials in meteorites' parent bodies: A novel route for diamond formation

Abstract

Keywords

ASJC Scopus subject areas

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