Final collaboration report EL 25091

Abstract

A total of three (3) stratigraphic diamond drillholes were drilled at Georgina, with two of these (GBD001 and GBD003) completed to their target depth of 600m; drilling was conducted between the 1-17 October, for a total of 1345.28 metres. Due to budget restrictions, no sampling for assay has been conducted to date. The drill holes intersected a generally fine grained siliclastic sequence of greenish to grey laminated calcareous siltstone and shale (calcilutites) with lesser buff-grey calcareous sandstones (calcirudites), and vughy dolomitic (evaporitic) limestones of the Arrinthrunga and Chabalowe Formations; evidence in GBD001 indicates that the Arrinthrunga and Chabalowe Formations interfinger. The significant thickness of finely laminated calcareous siltstone and grey-black carbonaceous shale (with minor limestone) intersected at the base of GBD003 is interpreted as belonging to the Arthur Creek Formation. The holes failed to intersect any significant alteration within the target Arthur Creek Formation, with only minor pyritic zones (eg: 371.5m and 447m in GBD001); however some zones of interest were noted. The upper part of the Chabalowe Formation in GBD001 is typically vuggy with some coarse dolomite and calcite crystals infilling the vugs; this may represent late stage hydrothermal alteration. Silicification of limestone is noted between 210-286m in GBD001 (Arrinthrunga?) and 326-396 in GBD003 (Chabalowe or Arrinthrunga). Bleaching is pronounced between 150-165m in GBD001 (Chabalowe). The lack of visible (coarse) base metal sulphides is disappointing, however this does not preclude the presence of mineralisation, particularly of fine grained sphalerite which can be difficult to visually identify.