Chapter 10 Proterozoic Iron-Formations*

作者: C. Klein , N.J. Beukes

DOI: 10.1016/S0166-2635(08)70124-5

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摘要: Publisher Summary Although many Proterozoic iron-formations have undergone various degrees of metamorphism, most of the interpretations in this overview are based on data derived from iron-formations that have undergone only low-grade metamorphic (lower greenschist) facies conditions. These relatively unmetamorphosed iron-formations consist mainly of chert, magnetite, various carbonates (siderite, members of the dolomite-ankerite series, and calcite), hematite, and silicates, such as greenalite, stilpnomelane, minnesotaite …

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