Energy and Minerals Australia (EMA) has announced an inferred JORC-compliant uranium resource at its Mulga Rock project in Western Australia totalling 28,300 tonnes, making it the country’s second largest uranium resource.
Mulga Rock is about 240km northeast of Kalgoorlie-Boulder and about 1km from the proposed processing site. The project’s main prospect is known as the Princess deposit, which measures 900 metres by 200 metres and hosts mineralized intervals up to 8 metres thick less than 40 metres from the surface.
Results from aircore drilling at the deposit have given EMA the initial inferred resource estimate.
EMA’s executive director Shane McBride says, “This is a spectacular result from a very low cost drilling program. It is very satisfying and rewarding for the company to be able to achieve this total JORC tonnage. The western area of the Princess deposit is an impressive discovery containing thick continuous mineralization developed in soft sediments under shallow cover.”
EMA plans a diamond drill program to allow it to increase the estimate to an indicated category. Multi-tool wireline logging at the site will also deliver a more accurate tonnage via high quality determination of bulk dry densities, and even initial mineral resource estimates for a number of base metals at Princess.
The drill program has been scheduled over 12 diamond holes which will also give the company bulk density and moisture measurements, organic matter content and estimation of any grade loss of associated elements arising from the air core method.
The company says future resource estimates and mining studies at Mulga Rock will rely heavily on some form of non-linear estimation method. Initial metallurgical leach tests are planned to confirm the Princess mineralization is also amenable to the preferred process route identified for the Ambassador deposit.