The 11.5 km2 Airstrip target is part of the
2020 Airstrip Exploration Highlights
Diamond drill hole AS-20-005 intersected 46.32 m of 0.51 g/t gold from surface and hole AS-20-004 intersected 26.06 m of 0.48 g/t gold from 128.81 m; Broad zones of lower grade gold mineralization were encountered in multiple diamond drill holes, including 101.13 m of 0.24 g/t gold from 314.27 m in AS-20-005 and 117.35 m of 0.14 g/t gold from 7.32 m in AS-20-002; Higher grade discrete veins were identified in drilling, including 0.29 m of 7.33 g/t gold in hole AS-20-005; Rotary Air Blast (RAB) and diamond drilling has encountered gold mineralization over an 1,800 x 900 m area and across a vertical extent of 380 m and High grade silver-copper-tungsten mineralization was encountered in two holes, including 2.45 m of 3,350 g/t silver, 0.85% copper and 0.40% tungsten from 64.30 m in hole AS-20-002.
'Our first six diamond drill holes at Airstrip have successfully demonstrated the presence of orogenic gold mineralization over a considerable area. Systems like this are typically complex and have broad lower grade zones with higher grades concentrated in key structural areas,' stated President and CEO,
Phase Two Program Summary
The phase two exploration program included six diamond drill holes totaling 1,876 m, RAB drilling, prospecting, mapping, and trenching focused on better defining gold mineralization at the largely overburden covered Airstrip target.
Holes AS-20-001 and -002 were targeted to twin and extend 2016 RAB holes ASR-16-004 and ASR-16-006, respectively. Challenging drilling conditions led to very poor core recovery in portions of both of these holes, and the RAB results were not replicated. Hole AS-20-001 encountered sporadic zones of trace gold, but no significant gold results were returned. Hole AS-20-002 returned a broad zone of 117.35 m of 0.14 g/t gold from near surface, including 15.24 m of 0.43 g/t gold.
Both of these holes also returned intervals of high grade silver mineralization within faulted sections, including 2.45 m of 3,350 g/t silver, 0.85% copper, and 0.40% tungsten from 64.30 m in hole AS-20-002.
AS-20-003 targeted an undercut of RAB hole ASR-16-004, drilling from the opposite direction. Sporadic zones of trace gold were encountered, but no significant results were returned.
AS-20-004 targeted an undercut of RAB hole ASR-20-019 and high grade rock samples collected at surface. This hole returned multiple horizons of low grade mineralization, including 26.06 m of 0.48 g/t gold, as well as higher grade discrete veins, including 1.87 m of 3.48 g/t gold.
AS-20-005 twinned and extended RAB hole ASR-20-018, and encountered multiple horizons of low grade mineralization, including 46.32 m of 0.51 g/t gold and 101.13 m of 0.24 g/t gold, with higher grade discrete veins returning up to 0.29 m of 7.33 g/t gold.
AS-20-006 twinned and extended RAB hole ASR-20-021. Sporadic zones of trace gold were encountered, but no significant results were returned.
RAB hole ASR-20-024 was drilled 800 m to the west of AS-20-001, testing an area of elevated gold- and arsenic-in-soil response, and returned 39.62 m of 0.23 g/t gold from 13.72 m, ending in mineralization.
Airstrip Geology and Mineralization
The Airstrip target hosts an 11.5 km2 gold-in-soil anomaly with values ranging from detection limit up to 2,360 ppb gold. The target area is underlain by a variably graphitic and calcareous phyllite with lesser amounts of quartzite, and mafic to intermediate volcanic and volcaniclastic rocks of the
Gold mineralization occurs within east-southeast to west-northwest trending and vertically dipping, broad zones of highly deformed quartz-carbonate +/- sericite veins. Mineralization is also disseminated within the phyllite host rock around veins. The mineralized areas contain variable amounts of pyrite, arsenopyrite and lesser pyrrhotite and are typically oxidized near surface.
The observations made to date would suggest the Airstrip target is a Phanerozoic orogenic gold system (e.g.
High grade silver mineralization, with associated copper and tungsten, has been encountered in faulted zones in two holes. The nature of this mineralization is not currently known, and will be investigated further in future work.
East Goldfield Update
Exploration work is underway at
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