Effect of Transition Elements upon the Nucleation and the Morphology of Magnetite in Silicate Melts of Basaltic Composition

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タイトル ( eng )
Effect of Transition Elements upon the Nucleation and the Morphology of Magnetite in Silicate Melts of Basaltic Composition
作成者
TAKENO Setsuo
KITAGAWA Ryuji
KAKITANI Satoru
UEDA Susumu
SUNAGAWA Ichiro
収録物名
Journal of science of the Hiroshima University. Series C, Geology and mineralogy
8
1
開始ページ 59
終了ページ 66
抄録
Effects of transition elements, Ti, Cr and Cu upon the nucleation and morphology of mag-netite in silicate melts of basaltic compositon were examined. Crystallization of magnetite was carried out at △T= — 10°C in the atmospheric condition. Quenched products are composed of magnetite, (plagi-oclase) and silicate glass. Examinations of the morphology of magnetite show that an addition of Ti and Cu with Keff < 1, promotes the development of dendritic and/or skeletal morphologies, whereas Cr, with Keff >1, has a definite effect to decrease grain size and to increase the number of crystals. The results obtained were discussed in relation to σ*, σ** and Keff.
言語
英語
資源タイプ 紀要論文
出版者
HIROSHIMA UNIVERSITY
発行日 1983-06-18
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0075-4374
[NCID] AA00706718