Spessartine–tourmaline-bearing manganiferous itabirite at Miguel Congo: Petrographic evidence for a Mn-rich metaexhalite in the Quadrilátero Ferrífero of Minas Gerais, Brazil
Spessartine–tourmaline-bearing manganiferous itabirite at Miguel Congo: Petrographic evidence for a Mn-rich metaexhalite in the Quadrilátero Ferrífero of Minas Gerais, Brazil
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米格尔刚果含锰铝榴石-碧玺的锰铁矿：巴西米纳斯吉拉斯州 Quadrilátero Ferrífero 富锰变铅矿的岩相证据
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
A. R. Cabral
中科院分区：
文献类型：
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作者：
A. R. Cabral;A. R. Cabral
首次提供了岩石学和电子探针数据，以证明在巴西米纳斯吉拉斯州Quadrilátero Ferrífero存在一种含碧玺-电气石的橄榄石。这种矿物组合为变质的含b富铁富锰沉积物提供了证据，可能是呼出成因。
For the first time, petrographic and electron-microprobe data are provided to demonstrate the existence of a spessartine–tourmaline-bearing itabirite in the Quadrilátero Ferrífero of Minas Gerais, Brazil. This mineral assemblage gives evidence for a metamorphosed B-bearing Fe–Mn-rich sediment, possibly of exhalative origin.