New copper mineralization discovered at three mineralized zones of the Cobra copper mine in Australia

en.Wedoany.com Reported - On October 21, the UK mining company Cobra Resources announced the latest drilling assay results from the Manna Hill copper project in South Australia, Australia, confirming copper mineralization in three areas: Blue Rose West, Shadow Rose, and Neptune Rose. Among them, the Blue Rose West drill hole intersected 32 meters of mineralization at a depth of 52 meters, with a copper grade of 0.70%; the Shadow Rose drill hole intersected 58 meters of mineralization at a depth of 12 meters, with a copper grade of 0.46%. The company has expanded the current reverse circulation drilling program to 64 holes to further investigate the extension of the mineralized zones and deeper porphyry copper targets.

Drill hole MHRC0029 in the Blue Rose West area is located west of the original Blue Rose mineralized zone and returned a 32-meter-long copper-gold mineralized interval at a depth of 52 meters, with a gold grade of 0.07 g/t. Within it, a 12-meter mineralized interval at a depth of 56 meters reached a copper grade of 1.13% and a gold grade of 0.08 g/t. The copper mineralization intersected by this drill hole occurs in strongly potassic-altered rocks and differs from the original skarn-type mineralization; the mineralized zone also contacts a large-scale magnetic anomaly area. Cobra Resources has arranged six follow-up drill holes to continue investigating the western mineralization and its relationship with deeper porphyry targets.

Shadow Rose, located about 200 meters south of Blue Rose, is a new skarn mineralized zone discovered in this round of drilling. Drill hole MHRC0025 intersected mineralization starting at a depth of 12 meters, with a 58-meter mineralized interval averaging 0.46% copper and 0.15 g/t gold; within it, a 42-meter mineralized interval starting at a depth of 22 meters increased to 0.56% copper and also includes a 10-meter high-grade mineralized interval with a copper grade of 1.09%. The company has added four drill holes to investigate the strike of mineralization in this area, and two other drill holes that recorded copper anomalies are awaiting laboratory assay results.

Neptune Rose is located about 500 meters north of Blue Rose. The first batch of assayed drill holes discovered a 10-meter copper-gold mineralized interval at a depth of 104 meters, with a copper grade of 0.39% and a gold grade of 0.06 g/t; another 2-meter mineralized interval with a gold grade of 0.51 g/t was discovered at a depth of 98 meters. Cobra Resources interprets this area as the northern folded limb of the Blue Rose skarn mineralized system and continues to define exploration targets using gravity and magnetic anomaly data. Another drill hole that recorded copper anomalies is awaiting assay.

As of this announcement, 32 drill holes have been completed at the Manna Hill project, with cumulative drilling exceeding 2,800 meters. Additional drilling will continue to cover Blue Rose and the mineralized zones to its north and south, while follow-up diamond drilling and high-resolution drone aeromagnetic surveys are also being carried out. Drilling programs in areas including Blue Rose, Neptune Rose, Anabama Hill, and Netley Hill are scheduled for completion in November 2026, after which the extension of different mineralized zones and deeper porphyry targets will be evaluated.