The Scorpion-Cinnabar area is a 2km long prospect located in the southwestern section of the WUSA Gold Project area and immediately to the south of the historic Black Butte mercury mine.
To follow up a stream sediment anomaly, semi-regional grid-based soil sampling was completed by the surface/mineral rights landholder in 2014 and 2015. Sampling was focused on the Scorpion-Cinnabar area using long sample lines as a prospecting tool. Anomalous areas were then in-filled with additional sampling.
In this soil program, Au values ranged from below detection limit (0.4 ppb) to 5.51g/t Au. 61 samples (9.6%) exceeded 0.1 ppm Au which was considered highly anomalous. Five samples greater than 0.5 g/t Au were identified in a valley setting immediately south of the Black Butte low sulphidation mercury mine, and the anomalous zone was confirmed by follow up sampling. This 2 sq km anomalous area, now known as the Scorpion prospect, became a priority area for additional exploration. Acid leached volcanic rocks were mapped beneath the thin soils which host the anomalous gold.
Mawson Gold Ltd completed soil sampling and sporadic rock chip sampling at the Scorpion-Cinnabar prospect prior to drilling. Gold ranged from below detection limits (3 ppb) to 0.4 g/t, averaged 277 ppb, with 33 samples (5.5%) exceeding 0.1 g/t Au, highlighting a coherent 600m x 100m Au-As anomaly open to the north and south.
Mawson drilled one hole at Scorpion, SDH001-18 (282 m) during 2018. This hole intersected predominantly argillic alteration with clear evidence of structural control on mineralized zones. An upper mineralized zone correlated in part with a sulphide-rich breccia, while a lower zone with a stockwork system. In the upper interval, elevated Au and Ag are associated with high levels of epithermal pathfinder elements including As, Sb, Pb, Zn and Cu indicating pyrite may be accompanied by galena and sphalerite. In the lower interval, enrichments of As, Sb, Cu and Au relative to background values was encountered. In drill core, alteration is dominated by argillic to possibly propylitic, with little evidence for silicification.
Two zones of interest were intersected in SDH-001-18:
The Scorpion drill hole demonstrated strong structural control on elevated geochemical values, a clear association between gold and base metal values, and widespread modest tenor gold enrichment. The upper mineralized breccia is encouraging with respect to gold and pathfinder values while the broader stockwork has patchy high values, including gold and copper. Orientated drill core measurements suggest true thickness is approximately 70% of drilled thickness for both mineralized intervals.
The prospect demands immediate drill follow up. Drill permits are in place.