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Magnetic fabric analysis of deformed rocks in the Riiser-Larsen Main Shear Zone, East Antarctica
https://doi.org/10.15094/00003146
https://doi.org/10.15094/00003146fad71dc0-6a8e-4877-b2c2-d6d1356f09c0
名前 / ファイル | ライセンス | アクション |
---|---|---|
KJ00003562960 (1.2 MB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2005-10-01 | |||||
タイトル | ||||||
タイトル | Magnetic fabric analysis of deformed rocks in the Riiser-Larsen Main Shear Zone, East Antarctica | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Mt. Riiser-Larsen | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | mylonite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | rock magnetism | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | anisotropy of magnetic susceptibility | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | pyrrhotite | |||||
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 | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00003146 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Nishioka, Itoyuki
× Nishioka, Itoyuki× Ishikawa, Naoto× Funaki, Minoru |
|||||
著者所属(英) | ||||||
en | ||||||
Graduate School of Human and Environmental Studies, Kyoto University | ||||||
著者所属(英) | ||||||
en | ||||||
Graduate School of Human and Environmental Studies, Kyoto University | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Anisotropy of magnetic susceptibility (AMS) in deformed rocks in the Riiser-Larsen Main Shear Zone (RLMSZ) was analyzed in order to demonstrate the changes in rock magnetic properties due to deformation. Sixty-nine samples were collected at six sites from sheared gneisses and sheared dolerites. Experimental results of stepwise acquisition of isothermal remanence, demagnetization of a composite IRM and thermomagnetic measurement indicate the presence of Ti-poor titanomagnetite. Pyrrhotite also occurs characteristically in specimens with mylonitic textures. Magnetic foliations of AMS for the mylonite at three sites show good agreement with mylonitic foliation at each site. The mylonites showed enhancement of anisotropy degree from protoliths, indicating overprinting of the original magnetic fabrics. Their maximum susceptibility axes are well defined within each site, and dip about 50-60° northward. The magnetic lineation probably indicates the maximum stretching direction in the RLMSZ. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1130866X | |||||
書誌情報 |
Polar geoscience 巻 18, p. 15-25, 発行日 2005-10 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |