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Crystallization temperatures and petrogenetic source of the Neoproterozoic Nagar Parkar granites : deduced from zircon crystal shapes
http://hdl.handle.net/10232/00030852
http://hdl.handle.net/10232/00030852f208bb26-61c8-49bb-b8e8-546dee819e65
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AA11246904_v52_p32-49 (1.8 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
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| 公開日 | 2020-01-16 | |||||||||
| タイトル | ||||||||||
| タイトル | Crystallization temperatures and petrogenetic source of the Neoproterozoic Nagar Parkar granites : deduced from zircon crystal shapes | |||||||||
| タイトル言語 | en | |||||||||
| 著者 |
NAKABAYASHI, Marimo
× NAKABAYASHI, Marimo
× REHMAN, Hafiz Ur
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| 言語 | ||||||||||
| 言語 | eng | |||||||||
| キーワード | ||||||||||
| 主題言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Zircon crystal shapes | |||||||||
| キーワード | ||||||||||
| 主題言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | thermometry | |||||||||
| キーワード | ||||||||||
| 主題言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Ti-in-Zircon | |||||||||
| キーワード | ||||||||||
| 主題言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | granites | |||||||||
| キーワード | ||||||||||
| 主題言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Nagar Parkar Igneous 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 | |||||||||
| 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 | |||||||||
| 要約 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | Granitic rocks are widely distributed on earth that are formed by the solidification/crystallization of magma. Most granites contain zircons, an accessory mineral, that preserve records of the magmatic crystallization. In this study, zircons from the Neoproterozoic (750 Ma) Nagar Parkar Igneous Complex were studied for crystal morphology to constrain the temperatures of crystallization. In total, 255 zircon crystals from two granitic varieties (gray and pink granites) were investigated. Majority of the crystals exhibit well-developed {100} and {110} prisms and short {101}, {211} and {121} pyramidal faces. Temperatures estimated from the zircon typology from gray granites ranged from 633?831 °C (n: 24) for sample NGP62a, 650?850 °C (n: 78) for sample NGP62b, 600?850 °C (n: 37) for sample NP01, 675?800 °C (n: 31) for sample NP12, and 613?850 °C (n:56) for sample NP62, and one pink granite sample showed a range from 675?800 °C (n: 7). Average temperatures from the above samples, when compared with the Titanium-in-zircon thermometry and the results were better than or within ± 50 °C for four samples, and within ± 100 °C for other two samples. The data from zircon typology show granodiorites to monzogranites fields, and a few crystals point towards alkaline granites. The zircon morphology suggest that the magma was possibly derived from a crustal origin with minor hybridization of the mantle component. | |||||||||
| 内容記述言語 | en | |||||||||
| 収録雑誌名 |
ja : 鹿児島大学理学部紀要 en : Reports of the Faculty of Science, Kagoshima University 巻 52, p. 32-49, 発行日 2019-12-31 |
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| 作成日 | ||||||||||
| 日付 | 2019-12-31 | |||||||||
| 日付タイプ | Issued | |||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | PISSN | |||||||||
| ISSN | 13456938 | |||||||||
| NII書誌ID（雑誌） | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| NC ID | AA11246904 | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| NDC | ||||||||||
| 主題Scheme | NDC | |||||||||
| 主題 | 450 | |||||||||
| 公開者・出版者 | ||||||||||
| 出版者 | 鹿児島大学 | |||||||||
| 出版者言語 | ja | |||||||||
| 公開者・出版者 | ||||||||||
| 出版者 | Kagoshima University | |||||||||
| 出版者言語 | en | |||||||||
