Malbex Resources, a gold exploration company, has declared assay results for 11 diamond drill holes from the Rojo Grande deposit and other prospective targets at its Del Carmen gold-silver project located in Argentina’s San Juan province.
DDHC-12-080 hole returned 67 m of 2.76 g/t gold and 14.8 g/t silver beyond the Rojo Grande inferred resource envelope, approximately 100 m from the nearest holes and over 150 m from 057A hole. Mineralized envelope at Rojo Grande has been expanded by this drill hole towards the southwest, where it remains exposed towards the west and southwest. The resource envelope included an inferred resource of 25.4Mt grading 13.3 g/t silver and 1.0 g/t gold.
Inside the present resource envelope, DDHC-12-076 drill hole reported a near surface intersection grading 9.7 g/t silver and 0.42 g/t gold with a second higher-grade intersection of 23 m grading 2.1 g/t silver and 1.8 g/t gold. DDHC-12-079, an adjacent drill hole, reported near surface intersections of 8 m at 1.33 g/t gold and 11 m at 0.70 g/t gold. At Rojo Grande, nearly all intersections bearing gold exist within a thick horizontal zone which reveals good continuity and may denote a paleo-boiling horizon. Additionally, high-grade structures have been encountered that may signify feeder zones for fluids which produced oxide mineralization.
Metallurgical studies to analyze the agreeability of the oxidized mineralization to heap leaching techniques are likely to be concluded shortly. The column tests have examined different mineralization grades at different crush sizes. Initial results are positive and Malbex Resources intends to announce the final results shortly.