Medgold began exploring in 2016 and completed an extensive soil sampling grid, and IP geophysical survey, mapping and channel-chip sampling at Barje.
Channel sampling at what is now called the Discovery Outcrop (CH_BAR_01-11) returned a best channel interval of 84m at 5.6 g/t Au and 105.2 g/t Ag. Sampling of an old adit returned 52m at 2.20 g/t Au and 88 g/t Ag.
GEOPHYSICAL SURVEY: IP / RESISTIVITY
The Company completed a 39 line-km (4 sq.km) Induced Polarization / Resistivity (IP-Res) survey which identified a high chargeability anomaly extending to the west of the Barje outcrop under cover for over 1km. The anomaly is believed to relate to near surface, flat-lying sulphide mineralization at the contact of the basement rocks and the overlying schists. Medgold’s subsequent drill results support this geological model.
At Barje, a large high-chargeability anomaly -measuring approximately 1km east to west and 400m north to south- was identified just west of the discovery outcrop. The southern limit of the anomaly appears to track the regional detachment fault east to west. The anomaly continues northwards, which is considered to be the northerly extension of the same detachment fault, but beneath cover and steepening topography. Interestingly, the high-grade saw-cut channel sampling completed at the main Barje outcrop is located on the eastern flank of the chargeability anomaly.
At this stage, it is unknown whether the chargeability anomaly is directly related to gold mineralization; however, schists exposed in the area of the chargeability anomaly display similar alteration and mineralization as seen in the schist stratigraphically overlying the mineralization at Barje. The Barje outcrop itself is observed in the chargeability data as a weaker NNE trending corridor; this also constitutes an exploration target to be followed up.
Between May to July 2018, Medgold completed a very successful 7-hole diamond drilling campaign at Barje to test the up-dip continuity of mineralization north of the main Barje outcrop, and to test for sulphide mineralization associated with the large-scale chargeability anomaly. All drill holes intersected significant near-surface mineralization. A second phase of diamond drilling commenced in late July 2018, with a planned 2,400 m program, designed to test the westerly continuity of the flat-lying mineralized structure intersected in the Phase 1 drilling campaign. A summary of the collar locations, for both phases of drilling, is shown in the table below:
* Coordinates are given in WGS84 datum and UTM zone 34 projection.
To date, all drill holes have intersected significant mineralization associated with a flat-lying detachment fault. A summary of the best drill intersections are as follows:
BAR001, collared approximately 70m north of the Barje outcrop, was designed to confirm that mineralization extends in a third dimension along a north-northeast axis from the outcrop. BAR003 and BAR004 are both collared on the same pad as BAR001 and drilled in a fan array (BAR001 to the south, BAR003 to the north, and BAR004 vertical).
BAR002, collared approximately 300m north-northeast of the Barje outcrop was designed as an up-dip step-out from the outcrop and BAR001.
BAR005 is collared 160 m to the NNW of the Barje outcrop and drilled towards the southeast. BAR006 and BAR007 are collared 190 m to the NW of the Barje outcrop, with BAR006 drilled to the southeast and BAR007 drilled to the northwest. All three drill holes intersected intervals of approximately 100 m of moderate to strong sericite and silica alteration with precious metal grades increasing with depth. All culminate with intersections of 13-30 m of intense brecciation and sulphide mineralization close to the contact of the detachment fault. BAR006 and BAR007 are located on the eastern flanks of an IP-chargeability anomaly, considered to be associated with disseminated sulphide mineralization, which continues for at least a further 500 m to the west.
BAR008: Collared 140m to the west of BAR001 (Discovery Outcrop, see press release 11th June 2018) and BAR013 is collared a further 70m to the west. Both yielded strongly mineralized intersections of Au and Ag mineralization. BAR008 intersected a zone of very high-grade mineralization, yielding 10.35 g/t Au, 235 g/t Ag and 9.57 % Pb+Zn over 5.85m, hosted within the Triple-X zone.
BAR009: Collared 70m to the northeast of the Discovery Outcrop on the extreme flanks of the IP-Chargeability anomaly.
BAR010: Collared on the same collar as BAR002, but drilled to the east-northeast, it yielded 38.20m at 3.98 g/t Au, 158 g/t Ag and 0.66 % Pb+Zn, including 6.85m at 13.49 g/t Au, 788 g/t Ag and 3.09 % Pb+Zn. The high-grade mineralized intersection in BAR010 is located 35m away from a similar intersection previously reported in BAR002.
BAR011 and BAR012b: Located approximately 250m to the northwest of the Discovery Outcrop on the northern flanks on the IP-chargeability anomaly. Strongly mineralized zones within the Triple-X Zone were intersected in both BAR011 and BAR012b yielding 10.75m at 4.76 g/t Au, 33 g/t Ag and 0.67 % Pb+Zn, and 15.20m at 1.68 g/t Au, 10 g/t Ag and 0.49 % Pb+Zn, respectively.