Cooper Metals Ltd (ASX:CPM) has extended copper-gold mineralisation in reverse circulation (RC) drilling at its Raven prospect within the Mt Isa East Copper-Gold Project in northwest Queensland.
Drilling has extended mineralisation to the southeast of Raven, now defined for at least 100 metres of strike, with new ‘significant’ results including:
- 10 metres at 1.35% copper and 0.10 g/t gold from 62 metres, including 3 metres and 3.37% copper and 0.26 g/t gold;
- 8 metres at 1.0% copper and 0.08 g/t gold from 85 metres, including 1 metre at 1.79% and 0.25 g/t gold from 85 metres and 2 metres at 2.96% and 0.16 g/t gold from 91 metres;
- 12 metres at 0.81% copper and 0.09 g/t gold from 113 metres, including 8 metres at 1.0% copper and 0.11 g/t gold from 113 metres and 3 metres at 1.68% and 0.21 g/t gold; and
- 19 metres at 0.22% copper from 82 metres including 1 metre at 1.05% copper and 0.07 g/t gold from 82 metres.
Meanwhile, at Brumby Ridge, follow-up drilling is planned for the March quarter of 2024, with results for geophysical surveys including downhole electromagnetic survey, aeromagnetic survey and induced polarisation to be completed in the intervening period.
“Continues to grow”
Cooper managing director Ian Warland said: “Mineralisation at the Raven copper-gold prospect continues to grow, with drilling defining a strike extent of at least 100 metres and still open to the SSE (LON:SSE).
“Raven is just one prospect that shows promise in the Brumby Ridge area, the latter originally discovered by a versatile time domain (VTEM) survey completed in 2022.
“Cooper has over 50 targets in its 1,600 square kilometres of tenure and ongoing geophysical programs in progress ahead of a large drilling campaign planned to kick off at Brumby Ridge in the March quarter of 2024.
“In the meantime, we will provide updates on the downhole electromagnetic survey completed at Brumby Ridge and Raven once the latest results have been interpreted and processed.”
Prospect location map Mt Isa East Project.
Drill program
At Raven, seven RC holes across 942 metres averaging around 135 metres in depth were completed in the October and November drilling programs.
Three holes were completed in October and an additional four holes were completed in November.
Assays have now been received for the four RC holes.
Forward plan
Updates will be provided to the market as results for the DHEM, aeromagnetic survey and IP survey are completed and follow-up drilling plans finalised.
The next steps are outlined below:
- complete processing and interpretation of downhole electromagnetic survey at Brumby Ridge and Raven prospects;
- complete processing and interpretation of aeromagnetic data at Brumby Ridge; and
- conduct IP surveys at Brumby Ridge and Mafic Sweats.