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Location: 19 km NE from La Serena, Chile
Pedro Pablo Muñoz N° 675P.O. Box 559La SerenaChile
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CMP is a limited liability Company. It has two main shareholders, the controller with 74.9% of shares, CAP S.A. and MC Inversiones LTDA., subsidiary of Mitsubishi Corporation.
The El Romeral is Kiruna-type deposit.The El Romeral is one of the largest IOA deposits in the Cretaceous Chilean Iron Belt, which extends-1000 km along the Coastal Cordillera of northern Chile and contains > 50 de-posits with > 40 Mt Fe. Mineralization is hosted by the late Jurassic to Neocomian La Liga Formation, which is an andesite lava flow from the Agua Salada Volcanic Complex (Emparan and Pineda, 2005). Emplacement of the magnetite ore bodies was controlled by the sinistral NNW strike-slip Romeral fault, which is an extension of the Atacama Fault System (AFS). The El Romeral deposit is limited to the west by the Romeral Diorite (129.0 0.9 Ma U-Pb zircon age, Rojas et al., 2018) and to the east and north by the post-ore granitic to granodioritic Punta de Piedra intrusion (102.2 ± 2.0 Ma U-Pb zircon age, Rojas et al., 2018). The Cerro del Cobre monzogranite and sienogranite batholith (U-Pb zircon age of 126.5 2 Ma; Emparan and Pineda, 2000) intrudes the volcanic sequences of La Liga Formation on the western side of the deposit.Three ore bodies have been identified in the El Romeral, from north to south: Cerro Norte, Cerro Principal, and Extensión Sur. Cerro Norte comprises sub-vertical massive magnetite bodies with low phosphorous and sulfur, whereas Extensión Sur is composed of a massive and brecciated iron ore with higher contents of phosphorous and sulfur, possibly caused by the presence of abundant apatite and pyrite associated with the magnetite ore. Cerro Principal is the main ore body and comprises a massive, vertical magnetite body that contains minor actinolite. The massive magnetite ore body grades. outward to disseminated magnetite, forming a transition zone with iron grades ranging between 22% and 45% Fe.
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