Lupaka Gold Corp. (Lupaka) acquired 100% of the Invicta Mining Corp. S.A.C (IMC), the owner of the Invicta project in October 2012.
On October 14, 2018, the rural community of Paraná blocked access to the mine. The blockade continued indefinitely, and Lupaka was never able to regain access to the site.
Lupaka Gold Corp. lost control of IMC on July 2, 2019.
The current Project owner PLI Huaura Perú S.A.C. (formerly known as Invicta Mining Corp S.A.C.) is the Peruvian subsidiary of PLI Huaura Holdings LP.
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Summary:
The Invicta Gold Project geology comprises mainly mafic volcanic rocks of the Calipuy group that overlie diorite, tonalite and granodiorite of the Paccho pluton, an intrusive suite that is part of the Huaura plutonic complex (Coastal batholith). Diorite and granodiorite of the Paccho intrusion are exposed in the southwest and western portions of the Invicta Gold Project. These generally comprise massive, weakly to moderately silicified rocks, with strong kaolinite, limonite and hematite altered rocks associated with mineralized zones.
Mineralized veins at the Invicta Gold Project have many of the characteristics of epithermal vein systems. Buenaventura Ingenieros S.A. (2010) concluded on the basis of fluid inclusions studies, which indicated multiple fluid populations and homogenization temperatures between 250 and 400 degrees Celsius, that mineralization at the Invicta Gold Project was mesothermal. However, field observations, including the style of veining, alteration, and the presence of open-space, vuggy textures are more in support of epithermal-style veining. The results obtained by Buenaventura Ingenieros S.A. (2010) may be explained by a depositional process controlled by fluid mixing and the cooling of the hydrothermal system associated with multiple stages of mineral deposition over a protracted period of time.
Mineralization
Mineralization is closely linked to the first stage of deformation, and occurs in three principal settings:
• Along the principal southeast- to east-southeast-striking, steeply-dipping strike-slip fault zones (e.g. Pucamina and Dany faults).
• Along northeast-striking, southeast-dipping normal faults that developed in extensional (dilational) settings linking the principal faults.
• Along left-stepping (dilational) and right-stepping (compressional) jogs or bends along the principal strike-slip faults.
In general, mineralization is characterized by the presence of quartz-pyrite-chalcopyrite-acanthitehematite bearing quartz veins with common crustiform, banded and cockade textures exhibiting distinctive vugs. The sulphide mineralogy comprises stringers and blebs of pyrite and chalcopyrite and pods of sphalerite and galena. Minor chalcocite, digenite, chalcopyrite and bornite are also reported with traces of tennantite. Petrographic studies conducted by Pangea and Invicta Mining Corp suggest that gold occurs as free grains in fractured quartz and pyrite. These characteristics are typical of epithermal vein systems. Mineralization is hosted dominantly by (sub-) volcanic mafic rocks of the Calipuy group.
At least three mineralized zones have been identified to date which are spatially associated with the Atenea, Pucamina and Dany faults.
The primary mineralized zone is the Atenea vein. Lesser mineral resources are hosted by, or associated with, the Pucamina and Dany faults and include Ydalias, Dany and Pucamina zones.
Other quartz-sulphide vein zones (e.g. Juan, Manuel, Zone 3, and Zone 7) are exposed at the Invicta Gold Project. Limited trenching and minimal drilling has tested these zones and indicated that these vein zones also carry gold, copper and silver attesting to the further exploration potential of the area. The presence of copper-rich quartz-sulphide veins may suggest a stage of mineralization and deformation that may pre-date the dominant gold-silvercopper mineralization. However, on the basis of information available to date, it can be surmised that the character and extent of these vein zones including their metal content, is not well constrained and requires further investigation.