Seismic Survey Confirm Large Prospective Gold Structures At Mining Centre
Wiluna Mining Corporation Limited (ASX: WMX) has received promising seismic and drilling results as it continues to build its high-class Wiluna Mining Centre’s gold inventory in Western Australia.
The company results from its first-pass two-dimensional seismic survey, which was recently undertaken with leading seismic survey contractor “HiSeis” to target further high-grade gold discoveries at the Wiluna Mining Centre, are highly significant.
The company has completed preliminary interpretation of the seismic data, and can confirm:
- The seismic survey confirms prospective large-scale structures at Wiluna Mining Centre
- Gold structures are shown to extend well beyond the current defined Mineral Resource limits
- Multiple parallel Wiluna look-alike structures are exploration targets
- Full-scale three-dimensional survey is now planned to map structures and assist with future drilling targeting
The company’s recently completed acquisition of 48km of seismic transverse lines across the Wiluna Mining Centre, had a main objective of mapping to a depth of 2.5km the gold structures and the geological architecture that hosts high-grade mineralisation.
This survey depth extends well beyond the currently defined Mineral Resource that is situated mainly from surface to 600m and at its deepest point is currently defined to only 1.2km below surface. Following the success of these transverse lines in imaging the interpreted gold structures and geological features, the Company plans to undertake a full-scale three-dimensional seismic survey over the entire Wiluna Mining Centre later in 2021. The full-scale three- dimensional survey is intended to identify drilling targets to test the Company’s large Exploration Target of 5Moz to 7Moz @ 4.5g/t to 7g/t.
The potential quantity and grade of the Exploration Target is conceptual in nature and is therefore an approximation. There has been insufficient exploration drilling to estimate a Mineral Resource in the target areas, and it is uncertain if further exploration will result in the estimation of a Mineral Resource. In line with the Company’s major ongoing resource and reserve development programme, drilling and geophysical work is planned over the next 1 to 5 years to systematically test these targets.
In addition, further high-grade sulphide intersections are reported from an additional 33 holes and 8,700m of resource development drilling. Together these results confirm the company’s strong view that the Wiluna Operation will develop into a larger-scale, high-grade, and long-life gold mine.
Further high-grade sulphides are reported here from Happy Jack, which is an important Stage 1 mining zone where redevelopment is in progress ahead of production:
- 6.35m @ 4.99g/t including 1.80m @ 11.51g/t; and 3.80m @ 6.25g/t
- 4.50m @ 11.85g/t
- 9.93m @ 6.31g/t including 0.30m @ 100.00g/t 18.27m @ 5.09g/t including 0.49m @ 47.60g/t; and 4.79m @ 6.03g/t
- 4.00m @ 5.10g/t; and
- 6.10m @ 4.97g/t including 2.10m @ 10.94g/t