Project of the Week: Goldplay Mining - Update from Big Frank
24th January 2022
Goldplay Mining (TSXv:AUC, OTCQB:AUCCF) is a company that is rapidly building a portfolio of promising gold and copper projects across British Columbia and Portugal, and this pro-active strategy has already paid off impressively with their latest acquisition, Big Frank. In their 10th January 2022 news release, Goldplay announced some very exciting results from their initial field work across several prospects on the property.
The Big Frank project lies in southwestern British Columbia and has been the target of previous exploration, whose results must certainly have attracted Goldplay to the asset. But there’s one major change since 1988, when much of that work was done: the retreating glaciers in the region. The Confederation Glacier lies partly on the property, and its diminishment over the past couple of decades has opened up even more exciting ground. Like all of Goldplay’s projects, the main focus here is on gold and copper, but Big Frank has complex geology, with the potential for polymetallic deposits over numerous discrete targets. Let’s take a look at the targets that have recent results and compare them to the historical data.
- Porphyry: When Goldplay acquired the Big Frank property, they knew about a region of anomalous copper±molybdenum±gold in soil covering around 1 km x 1.2 km, abutting the glacier. Historical results ranged up to 1,000 ppm Mo and 1,000 ppm Cu, and included sporadic rock gold anomalies of up to 11.2 g/t Au. Glacial retreat and further field work has allowed them to extend this zone, characterised by porphyritic alteration, by approximately 400 m to the northwest, with new samples returning a wide variety of values up to 243 ppm Mo and 0.57% Cu.
- Gold: In addition to copper and molybdenum, the Hannah prospect also contains abundant evidence of gold mineralisation in both historical and new results. Historical highlights include a grab sample assaying 126 g/t Au and over 1% Cu, and a 2 m channel sample averaging 85 g/t Au, 51 g/t Ag and more than 1% Cu. 1988 drilling returned even higher numbers over short intervals. That 1988 work also delineated conductive EM anomalies in the area, many of which are still untested. So what did the modern study find? Well, the past results were happily confirmed: the fresh work found grades of up to 5.72 g/t Au from the historical trenching, and grab sample grades of up to 17.1 g/t Au and 4.76% Cu from the exposure face at the Discovery zone. At the Conductor F zone, similar mineralisation yielded up to 37.3 g/t Au, 174 g/t Ag and 4.25% Cu across eight grab samples, as we well as bismuth (an important pathfinding element) up to an extremely high 5,077 ppm.
The Darlene prospect has been developed outwards from a polymetallic vein showing north of the Hoodoo Creek North prospect, and the 2021 work on this area has certainly impressed given how little was previously known about it. The recent field work uncovered a 30 cm quartz-sulphide vein assaying 16.0 g/t Au and 1,162 g/t Ag, as well as elevated lead and zinc. On top of this, newly-found smaller veins along a 400 m trend from the main vein all showed elevated Au, Ag and Zn ± Pb. More veins, which will be sampled in 2022, were also observed. This area could represent the southern edge of the source of a vein float assayed by the BC Geological Survey at 15.5 g/t Au. Additionally, soil samples at this prospect returned anomalous gold, silver and base metal values. This could be a small part of a much larger gold anomaly that is largely covered by ice, or it could be connected to a geochemically similar gold-in-soil anomaly at Hoodoo Creek North to the south. The latter theory is supported by satellite imagery that may show the anomalies trending towards each other, as well as mapped northeast-trending structures. Quartz veining with anomalous gold was also discovered across the Darlene South soil anomaly.
Talus fines collected in the past revealed that a 1 km-wide alteration zone on the northern edge of the glacier contained highly anomalous gold, copper and silver, and Goldplay improved on this during their 2021 field work with the discovery of a further strongly-altered zone around 250 m upslope. A weakly brecciated sample from the area returned 5.5 g/t Au, and 14 new talus fines assayed up to 2.68 g/t Au, outlining a gold anomaly that may extend between the historical anomaly and the new alteration zone and is open in both directions. Sporadic gold and copper in soil anomalies and mineralised veins also lie around 400 m from the anomaly.
Altogether, it seems like Big Frank has been a good bet for Goldplay so far, with their quick work to extend and improve upon historical results demonstrating that this is a company who knows a good thing when they see it. It will be fascinating to see what additional results come out of this property in the coming year.