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Location: 15km SW from Itabirito, Brazil
Av. das Nações Unidas, 8501 – 8º andar PinheirosSao PauloBrazilCEP 05425-070
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The iron ore Várzea do Lopes is located in the Quadrilátero Ferrífero (QF), a large gold, iron, aluminum and manganese metallogenetic district covering approximately 7,000 km² in the southern portion of the São Francisco Craton.The Quadrilátero Ferrífero consists of Archaean terrains (Rio das Velhas Supergroup) overlain by Proterozoic platform sediments (Minas and Espinhaço Supergroups). The current setting of the Quadrilátero Ferrífero results from two deformational events. The first represents an extensional event of Paleoproterozoic age (2100-1700 My) forming granitic-gneissic domes with syncline cores overlying the strata of the Rio das Velhas and Minas Supergroups. The second is a compressional event associated with the closure of the Africa/Brazil proto-ocean (650-500 My) located east of the QF. A west-oriented folding belt developed during this event.The Várzea do Lopes Complex is located in the western portion of the QF, Serra da Moeda. Itabirites and rocks of the Cauê Formation and Gandarela Formation (Minas Supergroup) outcrop therein.The Varzea do Lopes deposit consists of soft to hard high-grade hematite, enriched itabirite, canga, rolado, and itabirite.
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