Drilling extends copper mineralisation to depth and along trend of Mostaza mine

Highlights:

• Eight diamond holes completed (867 m) to date in Phase 1 drilling at Mostaza, Cerro Negro.
• All holes intersected visual evidence of high-grade copper mineralisation comprising abundant disseminations, veins, crackle-vein networks, and breccia-hosted chalcocite-bornite-chalcopyrite in zones up to 32.3 m downhole width.
• The mineralised intercept for CNG25 DD001 closely correlates with the width of the mineralised intercept in historical drill hole EDH-25 (33 m of 0.53% Cu, including 6 m of 1.05% Cu and 81 g/t Ag, and 9 m of 0.92% Cu and 73 g/t Ag), confirming that Lens 2 occurs as a west-dipping tabular body that is open at depth.
• Step-out drill holes CNG25 DD002-005 confirm that Lens 2 mineralisation extends further to depth and along strike of historical drill intercepts at the Mostaza mine.
• Lens 2 mineralisation potentially thickening with depth.
• Continuity of mineralisation along trend up to 270 m south of the mine is confirmed with significant copper intersections identified in exploration holes CNG25 DD006, 007, and 008 targeting outcropping lenses 3 and 4.
• Hole CNG DD007 intersected 32 m of high-grade copper mineralisation from 87 m.
• Samples for holes DD001 – 005 have been dispatched to ALS laboratories for assaying.
• Drilling is now underway on hole CNG25 DD009.

Sam Garrett, Chief Executive Officer of Great Southern Copper, said:

"Our Phase 1 diamond drilling programme at Mostaza has been very successful to date with three of the four objectives achieved, namely, the width of mineralisation reported in historical drill holes is confirmed, mineralisation extending at depth and along strike of historical holes below the Mostaza mine is confirmed, and copper mineralisation extending along trend to the south of the mine is also confirmed.

"All that remains is to receive the assay results from the laboratory which we are hopeful will confirm historical high-grade copper-silver grades and establish the gold grade of the system. Mineralisation in core includes evidence of intense chalcocite-bornite-chalcopyrite mineralisation of high-sulphidation type suggestive of what could be the upper levels of a porphyry system.

"The progress to date is highly encouraging and is delivering exciting results which will positively impact our on-going exploration focus and plans at Mostaza and Cerro Negro.”

Read the article online at: https://www.globalminingreview.com/mining/07022025/drilling-extends-copper-mineralisation-to-depth-and-along-trend-of-mostaza-mine/