MEM aprobó estudio de impacto ambiental de ToromochoLa Dirección General de Asuntos Ambientales Mineros (DGAAM) del Ministerio de En. While Chinalco had paid $ million for Toromocho, it expected to produce .. and Mines had to approve the EIA for an extractive project in Peru before. Gerald Wolfe pointed out that the company, which invested $ million in Toromocho last year, is waiting for the EIA approval to begin the construction phase.

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The Mineral Reserves have been segregated toromoco the classifications of proven and probable as required under NI The Old Holes are generally on a to m spaced drill grid with more infill drilling in the central area of the deposit as indicated on Figure An additional code was assigned to the model to reflect the boundary between the leach cap and interesting mineralization.

Common industry practice suggests CMC addition to the regrind circuit, however more detailed study of where and how to add CMC to the circuit yielded more satisfactory results through its addition to the second cleaner feed. The low grade leach stockpile is included within the Mineral Reserves.

Rougher and cleaner flotation times for flotation cell sizing. Project capital and operating costs were estimated for all areas of the project during the prefeasibility process.

Toromocho mine

Contour intervals yoromocho that map are 50m. Open circuit results are expected to change when tested in eeia cycle. The pulps were then composited as outlined above to generate 10m pulp weight composites of total copper assay. The mine plan input data was modified to match the February mine plan. The low grade mill ore stockpile is planned for rehandle to the mill togomocho the end of the mine life.


The verification comparisons will illustrate that the Old Holes appear to overestimate copper grade in the less than 0. The internal lab QAQC analysis of the standards, blanks, and duplicates are available on request for review. In total there are over 20 significant veins that have been mined off and on for years as the Morococha mining district.

Molybdenum moly and silver are also present as byproduct credits. The pre-feasibility study mine plan was based on a block model assembled in August of The leached versus fresh rock boundary based on 0.

Copper, zinc, and moly from the Old Drilling can be commingled with recent assays and used for resource estimation. The resource cone contained both the prefeasibility mine plan and the Mineral Reserve in their entirety.

The Mineral Reserve at Toromocho is the total of all ores planned for processing within the mining plan. IMC visited two operating sulfide flotation mills in the Toromocho district. Half core is retained at the PCI core shed at Tuctu.

Inferred mineral resource is troomocho as waste within tkromocho Mineral Reserve mine plan and the pre-feasibility study. The preceding logic was used by SNC-L to estimate molybdenum recovery of When both composites are available, calculated composites are used preferentially by IMC due to the additional assay support included within each composite mean. Tuctu is located just across the highway to the north from Morococha and is the location of the offices and core storage facilities currently in use by PCI.

A second flowsheet was developed to capitalize on the readily soluble copper in secondary copper minerals such as chalcocite, diginite, bornite and covellite. The Old Drilling pulps were reassayed for the following metals: Sample lengths for the Old Holes generally average toroomcho 1.


| Minera Chinalco Perú – Proyecto Toromocho

Waste toromofho stockpile storage is available immediately south and southwest of the Toromocho pit area. PCI is negotiating to obtain surface access to some surface properties adjacent to the PCI holdings at this time.

Heap leach costs were calculated for the Technical Report based on the ratio of high grade leach and low grade leach material delivered to the pad.

Cutoff Grades for Resources 0. This program was completed in The contract agreement provides for a land swap with Corona when the Toromocho project develops toward production.

All of the rock units can be brecciated to various degrees. FigureFacilities Locations. Intrusive bodies cut dipping tpromocho beds forming calc-silicate metamorphics.

IMC has not reviewed the environmental situation at the property. This unit is estimated to be m thick.

Toromocho mine – Wikipedia

Chalcopyrite exists in all of the composites however increases with depth. In the process, the mine delivers material to the following destinations: Conventional Flotation Parameters for Water Tests.

This sequence has been intruded with multiple events. It was incorporated later in the development of the mine production schedule. Increment per 15m Bench. Knight Piesold, Chile S. Intervals for Composites by PCI. These are developed by precise weighing of each of the component pulps in the same ratio as the component of the drill sample within the 10m interval.