Falcon Metals (ASX: FAL) has identified multiple conductors considered prospective for nickel-copper sulphide mineralisation with a Ground Electromagnetic (EM) survey at the Mt Jackson Project near Southern Cross in Western Australia.
Mt Jackson is located at the convergence of the Southern Cross Greenstone Belt and the regional-scale Koolyanobbing Shear Zone at the northern end of the belt. The Southern Cross Greenstone Belt is a well-endowed mineral province and has historically produced ~384 kt of nickel from the Forrestania Greenstone Belt, the southern extension of the Southern Cross Greenstone Belt, and more than 15Moz of gold.
The survey was conducted by GEM Geophysics using a high-temperature Superconducting Quantum Interference Device (HT-SQUID) sensor. The programme comprised three survey grids targeting separate soil anomalies on E77/2577 where Falcon previously announced coincident Ni-Cu-PGM results.
The MLEM survey has generated nine late-time conductors, which have been modelled as plates (planar rectangular conductive bodies).
Ground truthing of the up-dip projection of these conductors confirmed the presence of shallow cover, which is concealing the bedrock geology. The very strong conductance of these plates (~10,600- 17,000 Siemens) is consistent with highly conductive bodies such as massive nickel-copper sulphide minerals, sulphide facies banded iron formations or graphite. Three other moderate conductance plates that modelled deeper (between 5,850-10,000 Siemens) will be assessed following testing of the shallower and higher conductance targets.
