Drill Testing Gets Underway In Mid-June
Rox Resources Limited (ASX: RXL) has identified several significant new nickel sulphide targets from its recent regional exploration programme at Mt Fisher in Western Australia.
Rox conducted aircore drilling along the northern part of the Mt Fisher greenstone belt earlier in 2020 to test regolith geochemistry ahead of a targeted RC programme.
The company also conducted a VTEM survey which provides it with detailed magnetics and delineates EM conductors which may be present.
The results of the VTEM survey in conjunction with the air core drilling have now been interpreted and importantly has identified five key locations where there are coincident EM conductors with nickel indicator geochemistry (i.e. anomalous platinum and palladium) in the regolith.
The coincidence of nickel sulphide pathfinder geochemistry and EM conductors means the EM conductors are unlikely to be related to other conductive bodies (graphitic shales, barren sulphide lenses).
The company’s previous experience at Fisher East shows that spikes in these elements in the regolith have consistently been associated with nickel mineralisation in this belt.
Rox has deployed an RC drilling rig to test whether these targets contain commercial quantities and grades of mineralisation.
Until now, the northern part of the Mt Fisher greenstone belt was interpreted by GSWA to abut the margin of the Yilgarn Craton (Figure 1) with a northerly strike enveloped to the west and east by granite.
Recent exploration by Rox across this area has delineated prospective greenstone lithologies exhibiting favourable geochemistry and geophysics striking parallel to the craton margin. These units are interpreted to have undergone significant structural remobilisation.
From aeromagnetics, the Yilgarn Craton margin strikes NW-SE around 10 km north of the recently discovered greenstone.
The company notes that of significant interest is Anomaly 1,which is located in an area previously interpreted as comprising granite and adjacent Proterozoic Earaheedy Basin sedimentary rocks that Rox now understands to be prospective greenstone. Follow-up RC drilling of the newly defined anomalies will commence 15 June 2020.