Musgrave Minerals Ltd (ASX: MGV) has announced that thick oxide gold mineralisation including 84m @ 1.4g/t Au from 24m has been identified in early RC drilling at the Big Sky prospect, within the company’s flagship Cue Gold Project in Western Australia.
thick intervals of gold mineralisation at Big Sky indicate the potential for a large well-mineralised gold system with discrete zones of high-grade mineralisation along >2.6km of strike
The company said that the thick intervals of gold mineralisation at Big Sky indicate the potential for a large well-mineralised gold system with discrete zones of high-grade mineralisation along >2.6km of strike. The Big Sky prospect remains open to the north, south, and down dip.
MGV reported that follow-up RC drilling is continuing with assay results pending for a further 50 holes. The company said that the diamond drilling at Big Sky will commence this week.
RC drilling at Big Sky
The company had recently commenced reverse circulation (RC) drilling at the Big Sky prospect along the new gold corridor south-west of Lena to test the continuity, grade, and down dip extent of the mineralisation in oxide and fresh basement rock.
MGV has now reported encouraging results from the broad spaced (100-200m) first pass RC drilling at Big Sky. Musgrave said that six-metre composite samples were analysed from 24 RC drill holes in the current program at Big Sky with initial holes spaced at 100m to 200m traverse lines.
Thick gold intersections
MGV reported that the RC drilling at Big Sky prospect identified thick regolith gold mineralisation within the extensive 2.6km-long aircore gold anomaly. The company said that the gold mineralisation remains open to the north and south and down dip.
Significant new intersections included:
- 84m @ 1.4g/t Au from 24m (21MORC101), including 12m @ 6.6g/t Au from 66m;
- 42m @ 1.1g/t Au from 30m (21MORC100);
- 36m @ 1.2g/t Au from 30m (21MORC082);
- 12m @ 1.7g/t Au from 108m to EOH (21MORC094);
- 6m @ 2.6g/t Au from 48m (21MORC079);
- 24m @ 0.9g/t Au from 72m (21MORC095); and
- 6m @ 1.5g/t Au from 48m (21MORC093).
Summary of new RC drill hole assay intersections from Big Sky is as shown below.
Follow-up RC drilling ongoing
The company said that a 15,000m follow-up RC drilling program to define the extent of gold mineralisation in the regolith and basement rock beneath is continuing with 74 RC drill holes completed to date. MGV said that assays are pending for more than 50 drill holes.
Latest updates and next steps
Musgrave said that it will undertake infill and resource definition drilling on the higher-grade zones within the broader Big Sky prospect at the completion of the current broad spaced drilling program. MGV reported that a diamond drilling program will also commence in late June at Big Sky.
The company said that one-metre resamples from six-metre composite samples of approximately 40 drill holes from Big Sky are expected in July.
Musgrave reported that the first phase of RC drilling to identify the basement source of gold anomalism at Target 14 has been completed with results expected in early July. The company said that the Phase one diamond drilling at White Heat and Big Sky has commenced.
MGV reported that works to progress the prefeasibility study at Break of Day and Lena are continuing with additional diamond drilling for metallurgical testing and geotechnical analysis completed, and analysis of the core and samples has commenced. The company said that hydrological drilling and heritage surveys on new target areas will commence next week.
Musgrave said that in the Evolution JV, the seven-hole, diamond drilling program to follow-up the extensive regolith gold anomalies identified in the regional aircore drilling program on Lake Austin has been completed with assay results expected in late June.
“The RC drilling has confirmed the potential for significant gold mineralisation at Big Sky”
Management comments
Musgrave Managing Director Rob Waugh said: “The RC drilling has confirmed the potential for significant gold mineralisation at Big Sky and the possibility of a number of higher-grade zones within the broader anomalous trend. Drill traverse line spacing remains at more than 100m for much of the target area and assays are pending for more than 50 RC drill holes.
The mineralisation is masked from surface by a thin veneer of transported hardpan cover. The near surface nature of the oxide, regolith gold mineralisation is expected to be favourable for open-cut mining. Regional drilling will continue with the aim of defining discrete higher-grade zones for resource definition.”
Image Source: Musgrave Minerals Ltd