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 |
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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 | |
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)