The project straddles the west limb of the upright Pollele Syncline and the north-eastern and south-western strain shadow of the Norrie Pluton, in the northern end of the prospective Meekatharra – Wydgee greenstone belt. Within the project metamorphosed volcaniclastic sediments dip shallowly west beneath a sequence of intercalated ultramafic and mafic rocks. Andesitic volcanic and volcaniclastic rocks lie in the core of the synform. The bounding Mt Magnet – Meekatharra Shear, a major zone of shear-related deformation, traverses north-south through the project area.

Gold mineralisation near Polelle is associated with quartz veins and quartz stockworks hosted by sheared ultramafic rocks, altered mafic rocks and quartz-feldspar porphyry. The blind Mulla Mulla prospect (Mercator Gold Plc) lies on the intervening ground between exploration license applications 51/1225 and 51/1226. Reverse Circulation (RC) drilling intersections include 6 metres at 4.02 g/t Au from 137 metres (MMRC3) and 19 metres at 2.32 g/t Au from 91 metres (MMRC4), 5 metres at 3.82 g/t Au from 124 metres (MMRC15), 31 metres at 2.01 g/t Au from 164 metres (MMRC30) and 16 metres at 2.03 g/t Au from 35 metres (MMRC33). Fifty nine RC holes and 21 aircore holes have been drilled in the prospect.

The main exploration targets are formed by jogs in, and truncations in the stratigraphy by, the Mt Magnet – Meekatharra Shear in the strain shadow on the eastern flank of the Norrie Pluton. Several drill holes on Polelle, including one RC fence, have returned significant gold drill intercepts yet have received no systematic follow-up. The RC drill intercepts, for example, are open for over 6km of strike.