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Preliminary result fot the Rb-Sr mineral isochron ages of granitic rocks from Cape Omega and Oku-iwa Rock, Prince Olav Coast, East Antarctica
https://doi.org/10.15094/00003048
https://doi.org/10.15094/000030486171c5d1-c01d-477a-90ae-822f769a0231
名前 / ファイル | ライセンス | アクション |
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KJ00000044165 (1.3 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1999-10-01 | |||||
タイトル | ||||||
タイトル | Preliminary result fot the Rb-Sr mineral isochron ages of granitic rocks from Cape Omega and Oku-iwa Rock, Prince Olav Coast, East Antarctica | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Rb-Sr mineral age | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | cooling rate | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Cape Omega | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Oku-iwa Rock | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Liitzow-Holm Complex | |||||
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 | 10.15094/00003048 | |||||
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) |
Nishi, Naoko
× Nishi, Naoko× Kawano, Yoshinobu× Kagami, Hiroo |
|||||
著者所属(英) | ||||||
en | ||||||
Graduate School of Education, Saga University | ||||||
著者所属(英) | ||||||
en | ||||||
Faculty of Culture and Education, Saga University | ||||||
著者所属(英) | ||||||
en | ||||||
Graduate School of Science and Technology, Niigata University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The granitic rocks of the Cape Omega, and Oku-iwa Rock, yield the age of 439.0±12.3 Ma with an initial Sr isotope ratio of 0.70609±0.00014 and 417.9±2.2 Ma with an initial Sr isotope ratio of 0.70646+0.00002, respectively. These ages represent the time when these granitic rocks cooled down to the closure temperature of biotite and are consistent with previous reported K-Ar biotite ages (339-449 Ma) of granitic rocks in the Liitzow-Holm Complex. Calculated cooling rates of the Cape Omega and the Oku-iwa Rock areas are 5.3-4.1°C/Ma and 3.8-3.6°C/Ma, respectively. These results are consistent with cooling rates for the amphibolite facies terrain of the Liitzow-Holm Complex previously reported. | |||||
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 12, p. 157-165, 発行日 1999-10 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |