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On the formation and processing of carbon and nitrogen compounds in carbonaceous chondrites
| Title: | On the formation and processing of carbon and nitrogen compounds in carbonaceous chondrites |
| Authors: | Yamamoto, Tetsuo Browse this author | | Kozasa, Takashi Browse this author |
| Issue Date: | Oct-1990 |
| Publisher: | National Institute of Polar Research |
| Citation: | Editor in Chief, Keizo Yanai, with Hideyasu Kojima, Akira Shimoyama, Yoshio Yoshida, Ikuo Kushiro, and Nobuo Takaoka. |
| Journal Title: | Proceedings of the NIPR Symposium on Antarctic Meteorites |
| Volume: | 3 |
| Start Page: | 220 |
| End Page: | 229 |
| Abstract: | On the basis of chemical kinetic consideration, we examine processing of carbon and nitrogen compounds that leads to the linear relation between the logarithmic contents of C and N in carbonaceous chondrites: log N=a log C-b, found by A. Shimoyama et al. (Chem. Lett., 10, 2013, 1987), where a>1 and b are constants. It is shown that the linear relation results from dissociation of organic polymer in the grains before accretion to parent body-sized objects by radiation that penetrates through the grains such as cosmic ray. Condensation of volatile molecules composed of C and N is also examined as a possible process to form precursors of organic compounds in carbonaceous chondrites. From an analysis of a model thermodynamic system, it is conjectured that this process can also realize the linear relation under certain conditions. |
| Description: | Fourteenth Symposium on Antarctic Meteorites. 6-8 June 1989. National Institute of Polar Research, Tokyo, Japan. |
| Conference Name: | Symposium on Antarctic Meteorites |
| Conference Sequence: | 14 |
| Conference Place: | Tokyo |
| Rights: | 国立極地研究所 | | 本文データは学協会の許諾に基づきCiNiiから複製したものである |
| (Relation)isversionof: | http://ci.nii.ac.jp/naid/110000029910 |
| Type: | proceedings |
| URI: | http://hdl.handle.net/2115/42843 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 小笹 隆司
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