Mamba Exploration extends shallow gold mineralisation at Calyerup Creek
Gold mineralisation at Calyerup Creek now covers 850m of strike.
Western Australia explorer Mamba Exploration (ASX: M24) has identified what it describes as “significant” gold mineralisation which extends over a strike length of 850m at its Calyerup Creek project.
The final results from 25 holes completed late last year had highlights of 17m at 0.80 grams per tonne gold, including 1m at 5.8g/t gold and 3m at 1.77g/t gold. Mineralisation was intercepted 13m down hole.
Other assays were 22m at 0.61g/t gold from surface, including 5m at 1g/t gold and 8m at 0.88g/t gold, along with 17m at 0.64g/t gold from surface, including 3m at 2.24g/t gold.
Calyerup Creek is an early-stage exploration project in the Albany Frazer tectonic zone. It covers the high-grade Metamorphic Craton Margin setting similar to AngloGold Ashanti’s (ASX: AGG) Tropicana mine and Gascoyne Resources’ (ASX: GCY) advanced Glenburgh project.
Mineralisation remains open
The drill program late last year was designed to extend the strike length of the known mineralisation to the east and west.
Drilling identified significant extensions to the mineralisation along strike, with that mineralisation now traceable along 850m.
It remains open to the east and at depth.
Western extension also possible
However, while one wide-spaced drill line to the west suggests that this mineralisation is closed in that direction, the company says that this drilling did intersect zones of silica alteration and sulphide mineralisation, suggesting that the structural controls to the mineralisation may, after all, remain open and untested to the west.
Given the variability in the soil sampling results, Mamba is planning additional shallow geochemical sampling in the area prior to the more expensive reverse circulation drilling.
REE confirmed at Hyden
Earlier this week, Mamba reported that analysis of drilling results at its Hyden clay project have confirmed wide zones of rare earths mineralisation.
The intersections indicate an average 21% neodymium-praseodymium battery elements, and 17% heavy rare earths share of the deposit’s basket of elements, along with lower than expected thorium and uranium content.
Mamba’s 100%-owned projects are located in the Ashburton/Gascoyne, Kimberley, Darling Range and Great Southern regions of Western Australia.
The projects in the Ashburton/Gascoyne region and Great Southern region are prospective for gold and rare earths.
The ground in the Kimberley and Darling Range regions is prospective for metals such as copper, nickel, platinum group elements and rare earth elements.