The West 45 deposit consists of five semi‐massive to massive sulphide lenses at various stratigraphic positions within the host Quartz Eye volcaniclastic unit. They are dominantly Zn‐Pb rich and low in Cu‐Fe. The West 45 portal is located approximately 2km west of the Thalanga Mill.
In July 1996, RGC Thalanga Pty Ltd commenced the Thalanga Range Exploration Programme searching for additional mineralised zones along strike from the Thalanga Cu‐Pb‐Zn‐Ag‐Au mine. Exploration hole TRRC082 was designed to follow up promising geochemistry from hole TH45. The resultant intersections of 2m at 13.5% Zn, 3.1% Pb 1.1% Cu and 4m at 5.1% Zn, 1.1% Pb and 0.2% Cu were encouraging, and the prospect 1.8km northwest of and along strike from the Thalanga Central Pit was named West 45.
Kagara commenced the development of West 45 in August 2011, and developed a 600m decline to the top of the West 45 and developed the first level into the deposit. Approximately 3,000 tonnes of development ore was mined and processed through the Thalanga Mill prior to West 45 being placed on care & maintenance in March 2012. The decline is partially flooded, and services (power and ventilation) were stripped out during the administration period.
West 45 Portal
West 45 hosts a JORC Code (2012) compliant Mineral Resource of 591kt grading 0.6% Cu, 3.5% Pb, 8.3% Zn, 0.3g/t Au and 69g/t Ag. The resource estimate was completed by Mining One Consultants in January 2015 .
For further details of the West 45 resource and the supporting disclosures and appendices, please refer Thalanga Projects – Reserves & Resources and also to the Red River ASX release “Thalanga Project – Updated Mineral Resource Estimate” dated 11 February 2015 .