The confirmation comes from historical assays for samples taken from the underground workings in 1924, which have been located within the Department of Mines, Industry, Regulation and Safety archives.
Kingwest chief executive officer Ed Turner said the data reinforced the company’s belief of the potential for extending the known mineralised deposits.
He said: “We are very excited that this data confirms our interpretation and that very high-grade gold mineralisation has not been closed off at the bottom of the Princess May Shoot at Yunndaga.
“There also remain numerous areas higher up in these mineralised systems that have potential for significant mineralisation to be defined and our review of other historic underground sampling at other deposits including Lady Shenton is yet to be completed.”
As the records are from the 1920s when the mine was in operation, the measurements pre-date the metric system and conversion into metric units is required.
The imperial measurements of the high-grade nature of the Princess May Shoot at the deepest level of the mine convert to 139.6 metres length, average thickness of 1.04 metres and an average grade of 15.45 g/t gold.
Turner said: “Based on this data we believe the potential for significant high-grade gold mineralisation within and below these deposits is high.
“Detailed close-spaced sampling will also greatly assist with our planning of targeted deep drill holes into and below these deposits.”
Face samples taken along development drives and rises include:
- 31 metres at 22.3 g/t with average width of 2.1 metres;
- 62 metres at 20.4 g/t with average width of 0.7-metre;
- 19 metres at 24.5 g/t with average width of 1.5 metres; and
- 15 metres at 21.2 g/t with average width of 1.5 metres
Kingwest will continue to review historical data including underground sampling at other MGP deposits in order to possibly define high-grade mineralisation within remnant pillars as well as to refine planning of deep drilling in and beneath these deposits.
The close-spaced nature of the underground sampling greatly assists in estimation of unmined mineralisation as well as with targeting possible extensions to these high-grade zones.
KWR is planning to drill test zones of mineralisation identified in this work and test extensions of mineralisation delineated in the fourth quarter 2019 drilling.