Bongara Zinc Project
LeadFX acquired the Bongará Zinc Project in 2020. It has existing mineral resources (from surface) of 421,000 tonnes of contained zinc at 15% Zn with significant exploration potential.
The Bongará Zinc Project includes eight mineral concessions for 8,009.5 hectares that comprise the Bongará Zinc Project and five mineral concessions for 3,115.4 ha that comprise the Charlotte-Bongará Zone Project. It is located in the Yambrasbamba district of Bongará Province within the Amazonas Department in north-central Peru approximately 650km north-northwest of Lima.
The Bongará Concessions are hosted within the Pucará Basin which developed over a period of approximately 30-35 Ma during the late Triassic to medial Jurassic Periods in the zone between the Pacific oceanic plate to the west and the Brazilian Shield to the east. With incipient collision between the two land masses, the basin was a collecting area initially for red-bed continental sands (sandstones) and then with continuing subsidence, for deeper water sediments in the form of muds, silts and carbonates (limestones).
Five deposits have been defined in the concessions – Mina Grande Sur, Mina Grande Centro, Mina Grande Norte, Mina Chica and Bongarita.
Bongara Mineral Resource Estimate (JORC 2012)
Categories Tonnes ZN(%) Contained Zn (Ts)
Indicated 1,072,000 16.0% 172,000
Inferred 1,728,000 14.4% 249,000
Total 2,800,000 15.0% 421,000
Approximately 150,000 tonnes of zinc ore was mined from Mina Grandé Centro and Mina Grandé Norte from March 2007 until August 2008 at rate of 358t/day before circumstances relating to the international financial crisis caused the operation to cease in 2008. During this period, high-grade ore was shipped to the coast where it was treated using a Waelz kiln to produce zinc calcine that was sold to major refineries. Approximately 25,000 tonnes of zinc metal were produced.
The Bongara Concessions are located within a substantial zinc belt that extends the entire length of Peru and hosts a great many carbonate replacement deposits including, nearby, Florida Canyon deposit with 12.9 Mt @ 13% Zn-equivalent in all resource classes.