Omega / PSI Prospects

The Omega North, Omega South and PSI deposits are located 44km north of the historic Gidgee mill. Access from the Gidgee mill is excellent along established haul roads and well-maintained gravel roads. The deposits have been mined historically by three open cuts and one underground operation (Omega South) over a combined strike length of ~700m. These deposits are not in the current Mineral Resource Estimate.

Gold mineralisation is hosted by folded Banded Iron Formation (BIF) displaying steep south to southeast plunging fold axes and corresponding gold lodes at Omega South and PSI, and steep north plunging fold axes and gold lodes at Omega North (Figures 1 to 3). High-grade plunging gold lodes correspond to the orientation of BIF thickening in fold hinges, dilational jogs, and the intersection of north-south trending sinistral faults and breccia zones.

The crown pillar region just beneath the historic open pit at Omega South contains a number of significant shallow intercepts (>60 Au gram x metres) including:

Significant intersections (>80 Au gram x metres) from the deeper parts of the Omega South deposit, that remain open down plunge of the underground stopes include:

Significant intercepts (>20 Au gram x metres) from immediately below the Omega North open pit include:

Significant intersections (>40 Au gram x metres) from immediately below the base of the PSI open pit include:

Refer to Horizon Gold Ltd ASX announcement dated 15 February 2021, “Gum Creek Geological Review”. CPs L.Ryan, M.Gunther, D.Archer.

Exploration drilling will focus on the target areas down-plunge of the better intercepts at Omega North and PSI with the aim of adding resources to the Gum Creek Gold Project MRE.

 

Figure 1: Omega – PSI long section showing gold intercept gram x metre pierce points, historic open pits, underground infrastructure, and interpreted high-grade ore shoots.

 

Figure 2: Omega South cross section showing mineralised envelope, significant intercepts, and underground workings.

Figure 3: PSI Deposit cross section showing mineralised envelope, significant intercepts, and historic open pit.

 

Figure 4: Omega South, Omega North and PSI pits looking north.

 

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