The most common vein orientations are northwest and east-northeast, typical of the Andean Trend and antithetic transform structures. Veins pinch and swell along-strike and with depth. Vein Three and Vein Six are the two most significant structures and have been mapped at surface striking approximately east-northeast for 280 metres and 405 metres respectively and traced to depth in historical mine workings down to -60 metres below surface.
The San Juan de Lucanas Mining District has been subject to artisanal, and small-scale mining since pre-colonial times. Miners have intermittently exploited veins for precious and base metals throughout the District.
The Coriorcco Dome Structure hosts 17 epithermal quartz, quartz-carbonate, and quartz-carbonate-adularia veins plus smaller vein splays. Veins are confined to faulted structures, the most common vein orientations are northwest and east-northeast, these orientations represent the Andean Trend and antithetic transform structures. East-northeast trending veins offset northwest trending veins and are likely younger. Veins pinch and swell along-strike and with depth. The outcropping quartz vein system is host to drill-ready targets, located within an extensive belt of volcanic hydrothermal systems, which district-wide include a variety of mineralization styles.
Previous historic development exploited over 5,700 tonnes of material averaging 7.45g/t Au from selective underground mining of 0.8 metres to 2.5 metres mineable widths. Historical sampling and previous development work supports the potential for higher grade mineralization at depth.