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Investigation of the records of earthquake slip in carbonaceous materials from the Taiwan Chelungpu fault by means of infrared and Raman spectroscopies
https://hiroshima.repo.nii.ac.jp/records/2006925
https://hiroshima.repo.nii.ac.jp/records/2006925556af1be-f2b2-4065-a62a-a6e0e7eabf62
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
GeochemGeophyGeosys_16_1233.pdf (3.1 MB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-18 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Investigation of the records of earthquake slip in carbonaceous materials from the Taiwan Chelungpu fault by means of infrared and Raman spectroscopies | |||||||||||
| 言語 | en | |||||||||||
| 作成者 |
Hirono, Tetsuro
× Hirono, Tetsuro
× Maekawa, Yuka
× Yabuta, Hikaru
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| アクセス権 | ||||||||||||
| アクセス権 | open access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
| 権利情報 | ||||||||||||
| 権利情報 | An edited version of this paper was published by AGU. Copyright 2015 American Geophysical Union. | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | carbonaceous material | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Chelungpu fault | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | 1999 Chi‐Chi earthquake | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | frictional heat | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | fault gouge | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述 | To understand the mechanism of fault lubrication during the 1999 Taiwan Chi‐Chi earthquake, we developed a new temperature proxy for carbonaceous materials by using infrared and Raman spectroscopies together with heating and friction experiments. We found marked anomalies in the infrared and Raman spectra of carbonaceous materials retrieved from the primary slip zone of the earthquake: the infrared spectra exhibited very weak aliphatic CH2 and CH3 peaks and aromatic C=C absorbance peaks, and the Raman spectra exhibited very weak disordered and graphitic bands and a high ratio of disordered band area to graphitic band area. Those weak peaks and bands and the band area ratio were reproduced by heating carbonaceous materials from the nearby host rock to 700°C. These results suggest that the frictional heat in the slip zone reached approximately 700°C. We characterized the host rock's carbonaceous materials by means of elemental analysis, pyrolysis‐gas chromatography‐mass spectrometry, and simultaneous thermogravimetry‐differential scanning calorimetry and found that the H/C and O/C ratios were 1.29 and 0.30, respectively (which are close to the ratios for lignin) and that the volatile fraction was as high as 48 wt %. The pyrolysates obtained by heating from 100 to 400°C were dominated by phenols, fatty alcohols, and n‐alkanes. When the residue from pyrolysis at 100–400°C was rapidly heated to 700°C, the resulting pyrolysate was dominated by phenols, aromatic compounds, heterocyclic compounds, and n‐alkenes. This information suggests that change in the infrared and Raman spectra with increasing temperature may have been due to decomposition and aromatization reactions during pyrolysis. Rapid heating during earthquake slip may promote reactions of carbonaceous materials that are different from the reactions that occur during long‐term geological metamorphism. | |||||||||||
| 言語 | en | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | This research was supported by a Grant-in-Aid for Young Scientists (A) from the Japan Ministry of Education, Science, Sports, and Culture (23684039, 2013). | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | American Geophysical Union | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1002/2014GC005622 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | https://doi.org/10.1002/2014GC005622 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 1525-2027 | |||||||||||
| 開始ページ | ||||||||||||
| 開始ページ | 1233 | |||||||||||
| 書誌情報 |
Geochemistry, Geophysics, Geosystems Geochemistry, Geophysics, Geosystems 巻 16, 号 5, p. 1233-1253, 発行日 2015-05-02 |
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| 旧ID | 48719 | |||||||||||
