Catalyst Metals Limited (ASX: CYL) has continued its exploration success at the Henty Gold Mine in Tasmania.
Drilling is targeting three key areas towards the top of the underground ore body – Zone 96, Intermediate Zone and Sill Zone.
Technical Director, Bruce Kay, said these high-grade intersections should increase the current resources and be accessible to development and mining. Of the 153 holes drilled a majority contained gold mineralisation and 27 had intervals greater than 20g/t Au metres.
Very high gold grades in at least six holes:
• 2.20m @ 125.8g/t Au including 1.0m @ 260g/t Au in Z22194 (Zone 96)
• 1.40m @ 47.0g/t Au including 0.7m @ 89.4g/t Au in Z22229 (Zone 96)
• 1.75m @ 45.8g/t Au in Z22335 (Zone 96) • 7.5m @ 11.1g/t Au including 0.6m @ 70.3g/t Au in Z22331 (Zone 96)
• 2.8m @ 33.2g/t Au including 0.85m @ 104.0g/t Au in Z22221 (Intermediate Zone)
• 2.4m @ 22.2g/t Au in Z22225 (Intermediate Zone)
“The underground drilling program is showing continuing success in the shallower areas of the mine and is likely to further enhance the Resources on the Zone 96 ore zone,” Mr Kay said.
Underground diamond drilling continued with three rigs in operation. =
Mr Kay said the drilling is showing excellent high-grade zones beyond the limits of the 2021 Mineral Resource Estimate model and in parallel structures that have not been previously tested.
These high-grade drill intersections have the potential to contribute to an increase in Resources and a higher grade gold production profile. In addition to the high-grade Intersections above, there are other intervals of greater than 20 g/t Au metres that are significant for future potential.
These intersections include: 0.6m @ 42.0g/t Au from 102m, 1.8m @ 18.3g/t Au from 99.8 metres; 1.8 m @ 16.1g/t Au from 102.9 metres; 2.4m @ 14.0g/t Au from 65.m; 1.35m @ 33.0g/t Au from 51.55 metres. 1.4m @ 30.4 g/t Au from 41.6m; 3.2m @ 21.2g/t Au including 0.9m @ 66.5g/t Au from 93.3; 3.95m @ 11.0g/t Au from 1.9m; 3.9m @ 7.4g/t Au from 113.0m; 2.35m @ 10.3g/t Au from 75.35m; 3.8m @ 9.8g/t Au from 38.45m; and 4.2m @ 6.9g/t Au from 93.7m.
The ore zones are complex and often represented by several parallel structures. Most of the areas in the shallow section of the mine were mined before 2006 when the gold price was less than AU$500 per ounce. Mining on Zone 96 for example delivered approximately 340,000 ounces at a grade of 14g/t Au, mostly from the Hanging Wall 1 structure.
Drilling is indicating that there may be substantial mineralisation in the five to 10g/t Au range on parallel structures, or lateral extensions, that can be mined economically in the current gold price environment.
Henty North Surface Exploration Program
Diamond drilling has commenced on the northern extension of the Henty Fault and the second hole is in progress after the first hole was abandoned in the strongly sheared Henty Fault. The prospective mineralisation is east of the fault and was not intersected in this hole. Results from these surface drillholes will be available in the December Quarter.
Line cutting is continuing on the southern extension of the Henty Fault in preparation for a surface geochemical programme which has commenced.
For further information please visit: https://catalystmetals.com.au/
