Yandal Resources Ltd (ASX:YRL) has discovered gold mineralisation in three historic pits and one recently defined prospect with reverse circulation (RC) drilling at the Mt McClure Gold Project in Western Australia.
The company has confirmed the gold mineralisation extends to up to 240 metres of depth down-dip beneath each historic pit after receiving results from 18 RC holes for 4,969 metres drilled in the December quarter last year.
Yandal will now look to review and incorporate all historic drilling data from the prospects to determine the geological controls on the higher grading gold zones the company believes are present.
Hunting for high-grade zones
“At the key Success, Parmelia and Challenger open pits we have confirmed the mineralised envelopes are predictable, continue to considerable depths and remain open beneath 250 metres,” Yandal Resources managing director Tim Kennedy said.
“We know from historic drilling beneath the pits there is potential for high-grade zones, however, these zones are likely to have a plunge component which cannot be resolved with the current broad spaced (400-metre) deeper drill pattern.
“A review of all drilling, including shallower historic holes will be aimed at providing us with sufficient information to predict and test plunging higher-grade shoots.
“Also of particular interest is the area immediately beneath the Success and Challenger pits where a substantial amount of historic drilling was undertaken.
“Data validation and recent drilling by Yandal indicate there may be opportunity to compile an initial mineral resource estimate based on existing drilling.
"This opportunity is being evaluated and forms part of the 'important next steps' detailed further in this announcement.”
From here Yandal plans to:
- Diamond and RC drill test high-grade mineralisation adjacent to the 'Kink Zone' at Malone (Gordons Gold Project);
- Complete Heritage Surveys at the Ironstone Well and Barwidgee Projects in preparation for reconnaissance aircore drilling between Flinders Park and Flushing Meadows, along strike from Oblique and Quarter Moon and RC drilling in the vicinity of Sims Find;
- Complete the initial mineral resource estimate (MRE) for Gordons Dam; and
- Review drilling at Mt McClure to establish controls on potential higher grade plunging shoots and the potential for establishing an initial MRE at Success and Challenger.