Located in the mining district of Castrovirreyna province, in the mountainous department and region of Huancavelica, Peru, The Castrovirreyna Project is host to the Dorita and Reliquias properties. The Castrovirreyna mining district consists of silver-rich, polymetallic veins that host many significant mineral deposits. The Dorita and Reliquias properties are still highly underexplored. AgMR plans to re-start production at the Reliquias underground mine and undertake exploration activities at its highly prospective silver camps at the Castrovirreyna Project in Huancavelica, Peru. AgMR owns a 2,000 tpd processing plant and a 2-year operating tailings dam.
PROJECTS SUMMARY
RELIQUIAS PROPERTY
Reliquias Underground
Potential mineral resources distributed over 10 veins
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Excellent mineral upside and life of mine potential
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Reliquias Surface
Potential to add mineral resources at surface for an open-pit mining scenario
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Caudalosa – Poetas corridor
About 3.5 strike-length mineralized corridor with at least six veins with silver-rich historic mineral resources
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High-grades extends to Poetas mineralized target and towards the bonanza and Yahuarcocha targets.
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GEOLOGY
Primary lithologies in the Reliquias block of properties are volcanic and intrusive rocks of the Caudalosa and Castrovirreyna Formations. Rock types include andesite lava flows and tuffs, and intermediate to felsic composition domes. Alluvial and colluvial deposits and wetlands overlay the rock formations.
SILVER MINERALIZATION
Three mineralizing events are interpreted for the Reliquias block:
1
Emplacement felsic dome complexes
Generated epithermal alteration in the volcanic sequences (lithocaps), with a nucleus of siliceous alteration, transitioning outward to advanced argillic, argillic and propylitic alteration zones.
The intensity and spatial distribution of the epithermal alteration are controlled by the dimensions of each felsic dome occurrence.
2
Intermediate sulphidation polymetallic veins
Occur peripheral to, or occasionally within, the epithermal alteration lithocaps. Primary controls on location are fault and fracture zones
3
Mineralized breccias
Can be quartz-alunite, quartz-tourmaline or quartz-enargite-tetrahedrite
RELIQUIAS UG MINE
MAIN VEINS
DORITA PROPERTY
Major high-sulfidation epithermal targets with Ag, Au and polymetallic concentrations in silicified-oxidized structures
GEOLOGY
The primary lithologies in the Dorita block are volcanic and intrusive rocks of the Sacsaquero, Castrovirreyna, and Caudalosa Formations. Rock types include andesites, tuffs, felsic, and intermediate dome and flow dome complexes. Alluvial and colluvial deposits and wetlands overlay the rock formations.
SILVER MINERALIZATION
High-sulphidation
epithermal
Breccia and vein systems hosted in volcanic and volcano clastic rocks of the Caudalosa and Castrovirreyna Formations. Veins are massive/granular grayish silica with crustiform banded textures with consistent high silver/gold geochemical anomalies.
Polymetallic
veins
Associated with east-west and northwest-southeast trending fault zones. Veins show banded and brecciated crustiform quartz textures and appear to transition from high to intermediate sulphidation. Silver-rich polymetallic vein were exploited in the past at Dorita underground mine.