MONTREAL, Oct. 17, 2019 (GLOBE NEWSWIRE) -- Harfang Exploration Inc. (“Harfang”) (TSX-V: HAR) reports the discovery of 5 new occurrences of high-grade gold (up to 186 g/t Au in grab samples) on the Serpent Property (the “Property”) located in James Bay (Québec) following its summer program (Figure 1). Motivated by these positive results, the Corporation immediately followed up with additional work on the Property during fall to rake the immediate sector and track down these excellent results.
- Discovery of 5 high-grade gold showings (Table 1):
Lawr: Up to 186 g/t Au and 200 g/t Ag (grab); 9.79 g/t Au over 1.25 m (channel)
Python: 20.5 g/t Au (grab)
Cobra: 18.45 g/t Au (grab)
Camp: Up to 11.5 g/t Au (grab)
Boa: 3.02 g/t Au (grab);
- Mineralization in these showings occurs in quartz veins hosted in foliated tonalite and gabbro inside a newly identified structural domain [orogenic gold system];
- Extension of the Mista prospect (Cu-Au-Ag) for an additional 100 m towards northwest with 0.59% Cu, 0.25 g/t Au and 6.42 g/t Ag over 5.6 m and 0.59% Cu, 0.21 g/t Au and 7.66 g/t Ag over 2.05 m [intrusion-related system].
Five new gold showings
Harfang’s team, composed of 7 geologists, geology students and technicians, carried out prospecting and geological mapping on the Property during the first half of summer 2019. All operations were conducted from a temporary camp established in the Mista area. A total of 328 grab and channel samples were collected from outcrops, trenches and glacial floats in the southern part of the Property.
Exploration work in the area of the Mista prospect (Cu-Au-Ag) revealed the existence of several decimetric gold-bearing quartz veins hosted in foliated tonalites and gabbros. The most significant discovery refers to the Lawr zone, a gold-bearing structure extending laterally for at least 100 m in an east-west direction. Gold values in grab samples collected in the 20-30 cm thick quartz vein are commonly above 10 g/t Au (Table 1 and Figure 2). Grab samples are selective by nature and are not necessarily representative of the mineralized zones. Three channels with significant grades were completed returning 9.79 g/t Au over 1.25 m, 8.1 g/t Au over 0.50 m and 4.32 g/t Au over 0.5 m (channels opened at both extremities). The latest channel is located along a sheared corridor parallel to Lawr, some 25 m north of the main quartz vein. Visible gold was observed in a few samples and disseminations and clusters of pyrite, galena and arsenopyrite are common. At Lawr, gold is associated to a high silver content (up to 200 g/t Ag) and anomalous concentrations in Pb, Zn and As (Table 1).
Other new gold showings share similarities with the geological setting of the Lawr zone. All of them correspond to quartz veins hosted in tonalite and gabbro (Figure 3). These gold-bearing veins tend to be laminated shear veins subparallel to the sheared host rock and are preferentially emplaced at the contact between tonalite and gabbro. Extensional NNW-SSE and pegmatite-related quartz veins are also common on the Property. The mineralization style appears to be related to an orogenic gold system developed in an east-west deformation zone several kilometers wide (Figure 4).
Table 1. Grab samples (≥1 g/t Au) collected on the 5 gold showings discovered in 2019.
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