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AN EXPERIMENTAL STUDY OF Fe-Mg PARTITIONINGS BETWEEN ORTHOPYROXENE AND CORDIERITE IN THE Mg-RICH PORTION OF THE Mg_3Al_2Si_3O_<12>-Fe_3Al_2Si_3O_<12> SYSTEM AT ATMOSPHERIC PRESSURE : CALIBRATION OF ITS GEOTHERMOMETRY FOR HIGH-TEMPERATURE GRANULITES AND IGNEOUS ROCKS
https://doi.org/10.15094/00002852
https://doi.org/10.15094/000028527b33ce87-0417-4009-a79d-fc6558f6591f
名前 / ファイル | ライセンス | アクション |
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KJ00002368125 (1.6 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1997-09-01 | |||||
タイトル | ||||||
タイトル | AN EXPERIMENTAL STUDY OF Fe-Mg PARTITIONINGS BETWEEN ORTHOPYROXENE AND CORDIERITE IN THE Mg-RICH PORTION OF THE Mg_3Al_2Si_3O_<12>-Fe_3Al_2Si_3O_<12> SYSTEM AT ATMOSPHERIC PRESSURE : CALIBRATION OF ITS GEOTHERMOMETRY FOR HIGH-TEMPERATURE GRANULITES AND IGNEOUS ROCKS | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | orthopyroxene | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | cordierite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Fe-Mg partitioning | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | geothermometer | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | granulite | |||||
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 | 10.15094/00002852 | |||||
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) | |||||
論文名よみ | ||||||
その他のタイトル | AN EXPERIMENTAL STUDY OF Fe-Mg PARTITIONINGS BETWEEN ORTHOPYROXENE AND CORDIERITE IN THE Mg-RICH PORTION OF THE Mg_3Al_2Si_3O_<12>-Fe_3Al_2Si_3O_<12> SYSTEM AT ATMOSPHERIC PRESSURE : CALIBRATION OF ITS GEOTHERMOMETRY FOR HIGH-TEMPERATURE GRANULITES AND IGNEOUS ROCKS | |||||
著者名よみ |
サカイ, サトシ
× サカイ, サトシ× カワサキ, トシスケ |
|||||
著者名(英) |
SAKAI, Satoshi
× SAKAI, Satoshi× KAWASAKI, Toshisuke |
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著者所属(英) | ||||||
en | ||||||
Division of Earth Sciences, Department of Biosphere and Geosphere Sciences, Faculty of Science, Ehime University | ||||||
著者所属(英) | ||||||
en | ||||||
Division of Earth Sciences, Department of Biosphere and Geosphere Sciences, Faculty of Science, Ehime University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Exchange reactions of Fe^<2+> and Mg^<2+> between orthopyroxene and cordierite (abbreviated to Opx and Crd, respectively) : [chemical formula] were experimentally investigated in the Mg-rich portion of the pyrope (Mg_3Al_2Si_3O_<12>)-almandine (Fe_3Al_2Si_3O_<12>) system at temperatures from 1000℃ to 1325℃ under atmospheric pressure. Combining the volume data, the distribution coefficient of Fe-Mg partitionings between these phases, K_D(=[numerical formula]), was formulated as ln K_D=(1424+7.02P)/T-0.619,where P and T are in kbar and K. This reaction is temperature-dependent and would be a useful geothermometer. The applications of this orthopyroxene-cordierite thermometer to some Antarctic granulites yield equilibration temperatures of 100℃-200℃ lower than the previous estimations. This suggests that the exchange reaction of Fe^<2+> and Mg^<2+> between orthopyroxene and cordierite continued down to closure temperatures of 500℃-600℃ caused by subsequent cooling after the peak of metamorphism. Temperature estimations using the present orthopyroxene-cordierite thermometer for the igneous suites including S-type tonalite, rhyolite and granulitic xenoliths in andesite are in good agreement with those obtained from other thermometers. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1072335X | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Antarctic Geosciences 巻 10, p. 165-177, 発行日 1997-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |