Área Minera
AYEN – RELINCHO
GOLDEN MINING S.A.
GOLDEN MINING S.A.
English Version
The Ayen property is part of the Hualilán mining project, located in the geologic province of Precordillera Central, department of Ullum. This mining concession is approximately 120 km northwest of the city of San Juan.
The Hualilánproject has beenintermittently explored and exploited for over150 years. During different phases of work,over 8,000 meters of underground working has been developed.In addition, geological surveys and geophysical studies have been completed. In 2004, the company «La Mancha Resources» estimated a resource of 628,000 oz of Au for the Hualilán project.
Since 2019, the «Golden Mining S. A.» company (Challenger Exploration Limited),has been conducting exploration work at Hualilán. In the year 2020, the company signed an agreement of exploration and exploitation option with the Institute of Explorations and Exploitations (IPEEM),for the Ayen property adjacent to the Hualilan Project.
To date, this company has completed235.921 meters of drilling of which 55,921 meters correspond to Ayen property.They have also completeddetailed geologic mapping, geophysical works, structural, hydrological and geotechnical studies and metallurgical testing.
For the preparation of the IIA mining plan submitted in April 2023 to the mining authorities of the province of San Juan, the «geological resources» reported by Golden Mining S.A. in June 2022 were considered, which indicated a resource of 1,799,909 ounces of Au equivalent (1.02 ppm Au; 5.5 ppm Ag; 0.4% Zn; 0.06 Pb). In November 2024, the mining authority granted the Environmental Impact Statement (EID) to the company for the exploitation stage of the Hualilán project.
The mineralization is of skarn-type with Au-Ag and Zn atthe contact of Ordovician limestone sequences and dacitic intrusive bodies of Miocene age. Mineralization occurs in the exoskarn (limestone layers), contact skarn (along lithological contacts) andendoskarn (mineralization disseminated in the intrusive bodies) zones. The structures reflect the typical structural style of the Precordillera, with a north-south regional faulting system that exposes the host rocks, segmented by east-west structures that affect all lithological units and acted as conduits for mineralization.