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CHIME dating of monazite from the Dongqing pluton in SE Jilin, China
https://doi.org/10.18999/joueps.55.23
https://doi.org/10.18999/joueps.55.233eccaa82-4ea8-4dc9-b9f6-ef38292c68c1
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
55-2.pdf (1.7 MB)
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| アイテムタイプ | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2011-05-06 | |||||
| タイトル | ||||||
| タイトル | CHIME dating of monazite from the Dongqing pluton in SE Jilin, China | |||||
| 言語 | en | |||||
| 著者 |
SUN, Deyou
× SUN, Deyou× SUZUKI, Kazuhiro× KAJIZUKA, Izumi× KAMIKUB0, Hiroshi× Lu, Xiaoping× Wu, Fuyuan |
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| 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 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The Dongqing pluton in the Zhangguangcai Range, NE China comprises two-mica monzogranite and garnet-bearing two-mica monzogranite with subordinate garnetbearing muscovite alkali-feldspar granite. The monzogranite was dated as 208 Ma by the ^208Pb/^232Th monazite dating (Fang, 1992) and ca. 160 Ma by the Rb-Sr and Sm-Nd methods (Wu et al., 2004). To examine the discrepancy, monazite from the monzogranite was dated by the CHIME method coupled with age mapping. Monazite grains show significant compositional variation in concentric and sector fashions, but are chronologically uniform. Individual sets of ThO2, UO2 and PbO analyses were screened by the chemical criteria, 0.96<(Ca+Si)/(Th+U+Pb+S)<1.05 and K2O<0.02 wt.%. The screened data points are arrayed linearly on the PbO vs. Th02* diagram and define an isochron of 159.0±4.8 Ma with an intercept value of 0.0030±0.0017, suggesting that the older isotopic monazite age is possibly resulted from the sizable amounts of initial Pb. Present CHIME monazite dating reinforces that variety of peraluminous rocks in the Dongqing pluton formed at about 160 Ma through the late stage of magmatic differentiation and magma-fluid interaction. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | Dept. of Earth and Planetary Sciences, Nagoya University | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| ID登録 | ||||||
| ID登録 | 10.18999/joueps.55.23 | |||||
| ID登録タイプ | JaLC | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0919-875X | |||||
| 書誌情報 |
en : The Journal of Earth and Planetary Sciences, Nagoya University 巻 55, p. 23-37, 発行日 2008 |
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| 著者版フラグ | ||||||
| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/14729 | |||||
| 識別子タイプ | HDL | |||||
