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Preliminary result for the Rb-Sr whole-rock age and initial Nd isotope ratios from the Closepet granite in Karnataka, Southern India
https://doi.org/10.15094/00003049
https://doi.org/10.15094/0000304941e7e247-62be-4a62-a3e3-29bd2cf8dd2e
名前 / ファイル | ライセンス | アクション |
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KJ00000044166 (1.5 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 for the Rb-Sr whole-rock age and initial Nd isotope ratios from the Closepet granite in Karnataka, Southern India | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | southern India | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Closepet granite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Rb-Sr whole-rock age | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | initial εNd value | |||||
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 | 10.15094/00003049 | |||||
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) |
Tainosho, Yoshiaki
× Tainosho, Yoshiaki× Kagami, Hiroo× Mahabaleswar, B. |
|||||
著者所属(英) | ||||||
en | ||||||
Department of Natural Environment, Faculty of Human Development, Kobe University | ||||||
著者所属(英) | ||||||
en | ||||||
Graduate School of Science and Technology, Niigata University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Geology, Bangalore University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Rb-Sr whole-rock isochron age was determined for granitic rocks from the Closepet granite, southern India. Porphyritic monzogranite, clinopyroxene quartzmonzonite, pink granite and grey granite, four main representative granitic rocks, gave an Rb-Sr age of 2669±125 Ma with an initial ^<87>Sr/^<86>Sr ratio of 0.70193±0.00088. This Rb-Sr whole-rock isochron age indicates a major period of equilibration of the isotopic system on a whole- rock scale at 2669 Ma. Initial εNd values normalized to 2669 Ma for individual granitic rocks range from -4.4 to -7.2. The large initial εNd values and low Sr initial ratios suggest that the Closepet granite has complicated history such as mixing. | |||||
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. 166-175, 発行日 1999-10 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |