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<p>The Miguel Burnier manganese (Mn)-ore deposit, located in the Quadrilátero Ferrífero of Minas Gerais, Brazil, has enrichments in the rare-earth elements (REE). Here, this finding is reported. Three types of REE enrichments have been identified in: (1) Cenozoic wad-like diamictite; (2) hydrothermally altered manganiferous mudstone of Cenozoic age; (3) lithiophorite-rich veinlets and pockets within Precambrian itabirite. In the latter, churchite-(Y) [Y(PO<sub>4</sub>)·2H<sub>2</sub>O] and rhabdophane-(La) [La(PO<sub>4</sub>)·H<sub>2</sub>O] are the main REE-bearing minerals. Other metals, in particular mercury (Hg), are also enriched, indicating that metalliferous overprint took place during the Cenozoic in a tectonically stable, cratonic terrane.</p>

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Rare-Earth Elements (REE) and Mercury in the Historically Important Miguel Burnier Manganese-Ore District, Quadrilátero Ferrífero of Minas Gerais, Brazil

  • 期刊论文

  • 发表日期：

    2026年2月14日

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  • Tiago Henrique DeFerreira,
  • Alexandre Raphael Cabral,
  • Francisco Javier Rios,
  • Lucas Eustáquio Dias Amorim

摘要

The Miguel Burnier manganese (Mn)-ore deposit, located in the Quadrilátero Ferrífero of Minas Gerais, Brazil, has enrichments in the rare-earth elements (REE). Here, this finding is reported. Three types of REE enrichments have been identified in: (1) Cenozoic wad-like diamictite; (2) hydrothermally altered manganiferous mudstone of Cenozoic age; (3) lithiophorite-rich veinlets and pockets within Precambrian itabirite. In the latter, churchite-(Y) [Y(PO4)·2H2O] and rhabdophane-(La) [La(PO4)·H2O] are the main REE-bearing minerals. Other metals, in particular mercury (Hg), are also enriched, indicating that metalliferous overprint took place during the Cenozoic in a tectonically stable, cratonic terrane.