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Magnetite microexsolutions in silicate and magmatic flow fabric of the Goyozan granitoid (NE Japan): Significance of partial remanence anisotropy
https://doi.org/10.24517/00067010
https://doi.org/10.24517/0006701065fd501b-be41-4f64-bea9-09220d236df9
名前 / ファイル | ライセンス | アクション |
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SC-PR-USUI-Y-111-B11101.pdf (5.1 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-09-02 | |||||
タイトル | ||||||
タイトル | Magnetite microexsolutions in silicate and magmatic flow fabric of the Goyozan granitoid (NE Japan): Significance of partial remanence anisotropy | |||||
言語 | ||||||
言語 | eng | |||||
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 | journal article | |||||
ID登録 | ||||||
ID登録 | 10.24517/00067010 | |||||
ID登録タイプ | JaLC | |||||
著者 |
Usui, Yoichi
× Usui, Yoichi× Nakamura, Norihiro× Yoshida, Takeyoshi |
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著者別表示 |
臼井, 洋一
× 臼井, 洋一 |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学理工研究域地球社会基盤学系 | |||||
書誌情報 |
Journal of Geophysical Research: Solid Earth 巻 111, 号 11, p. B11101, 発行日 2006-11-08 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2169-9356 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2169-9313 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10819743 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1029/2005JB004183 | |||||
出版者 | ||||||
出版者 | American Geophysical Union / Wiley | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Anisotropy of magnetic susceptibility (AMS) has been widely used to infer magmatic flow patterns of granitoids where an appropriate AMS axis is parallel to an alignment of mafic minerals or magnetite. The magmatic flow fabric in Cretaceous granitic plutons from northeastern Japan was verified using an analysis of anisotropy of partial anhysteretic remanent magnetization (ApARM) which further isolates the magnetite subfabrics according to magnetite grain size. The preferred orientation of polysynthetic twins in plagioclase laths and clinopyroxene is discordant with the bulk AMS fabric along outer marginal zones of the granitoid, as shown by image analysis of microphotographs from thin sections cut in orthogonal planes. This suggests that the uncorroborated use of bulk AMS to detect flow fabric in granitoids has risks. Scanning electron microscopy (SEM) reveals that submicroscopic, needle-shaped magnetite inclusions exsolved in anhedral plagioclase and clinopyroxene may explain such anomalous exceptions to the validity of AMS fabrics. Our ApARM measurements show that the ApARM alignment of relatively high-coercive, submicroscopic magnetite inclusions is concordant to the linear orientation of anhedral plagioclase and clinopyroxene. The combination of SEM, AMS, and ApARM was required to confirm the magmatic and submagmatic flow pattern of granitoids in this study and is generally preferable to the use of AMS alone. Copyright 2006 by the American Geophysical Union. | |||||
権利 | ||||||
権利情報 | Copyright ©2006. American Geophysical Union | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2005JB004183 | |||||
関連名称 | https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2005JB004183 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://agupubs.onlinelibrary.wiley.com/journal/21699356 | |||||
関連名称 | https://agupubs.onlinelibrary.wiley.com/journal/21699356 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://sites.agu.org/ | |||||
関連名称 | http://sites.agu.org/ | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.wiley.com/en-gb | |||||
関連名称 | https://www.wiley.com/en-gb |