Alteration of Ilmenite in the Manavalakurichi Deposit, India
Alteration of Ilmenite in the Manavalakurichi Deposit, India
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印度马纳瓦拉库里奇矿床钛铁矿的蚀变
DOI：
10.1346/ccmn.1994.0420508
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发表时间：
1994
影响因子：
2.2
通讯作者：
A. D. Damodaran
中科院分区：
文献类型：
--
作者：
D. Babu;K. A. Thomas;P. N. Mohan Das;A. D. Damodaran
磁分馏、化学和结构分析证明，Manavalakurichi 矿床中钛铁矿的蚀变仅延伸到形成带有微量金红石的假金红石。数据表明，二价铁向三价铁的转变、三价铁氧化物的形成和铁的去除对蚀变顺序有贡献。前两个高磁性部分不是未蚀变的钛铁矿。钛铁矿晶胞体积的减少表明在蚀变过程中发生了亚铁-铁转化。
Magnetic fractionation, chemical, and structural analyses prove that alteration of ilmenite from Manavalakurichi deposit extends only up to the formation of pseudorutile with traces of rutile. The data indicate that ferrous to ferric iron transformation, ferric iron oxide formation, and iron removal contribute to the alteration sequence. The first two highly magnetic fractions are not unaltered ilmenite. A reduction in ilmenite unit cell volume indicates the ferrous-ferric conversion occurred during alteration.