Lefroy Exploration Limited (ASX: LEX) says it has achieved “impressive” results from a recent programme of reverse circulation (RC) at Lucky Strike, within its Eastern Lefroy tenement package.
The company said the results from the RC drilling programme confirm that the Lucky Strike gold mineralisation extends a further 320m along strike and remains open. A strong gold intersection was returned from each of the three wide spaced sections drilled highlighting the discovery of two new ore positions or lodes.
Significant results returned include:
incl. 4m @ 21.9g/t Au from 77m
incl. 2m @ 8.58g/t Au from 151m
incl. 2m @ 15.2g/t from 65m
Eastern Lefroy is part of the greater Lefroy Gold Project (LGP) located 50km to the south east of Kalgoorlie, while Lucky Strike and its strike extensions are located within the company’s recently granted Mining Lease M25/366.
Lucky Strike is located approximately 35km north east of Gold Fields St Ives processing plant and 5km south west of the Randalls Processing Plant operated by Silver Lake Resources.
The Lucky Strike Trend was identified as a prospective structural corridor after integration of previous exploration with detailed ground gravity data. Gold mineralisation at Lucky Strike was discovered by the company in 2017 from wide spaced air core drilling.
Managing Director Wade Johnson said the area near Lucky Strike is a continued high priority exploration focus, with gold anomalies identified at Havelock, Neon, Capstan and Erinmore highlighting district scale gold prospectivity.
He said the drill programme was primarily aimed to further evaluate the strike and plunge potential of the strong gold mineralisation (21m @2.93g/t Au from 139m) intersected in June 2019.
The programme design, was also a proof of concept to evaluate a linear gravity anomaly (gravity low) that was interpreted by the company to represent a package of deeply oxidised sedimentary rocks (including BIF), buried beneath up to 15m of transported cover.
The programme consisted of 27 holes for 4274m of drilling on three step out drill sections to test an additional 320m of strike to the south east at Lucky Strike, and three initial 80m spaced drill sections evaluating air core gold anomalies at Lucky Strike Extended.
The angled holes were spaced at nominal 40m centres on each of the six drill sections completed, and ranged in depth from 84m to 259m.
The new drill data reinforces the Company’s view that Lucky Strike is part of a larger gold mineralised structure that has limited deeper effective RC drilling along its strike length.
Planning of the next stage of RC drilling is underway and will include closer spaced drilling around the shallow oxide gold mineralisation in two previous holes. This drilling is anticipated to commence in October 2019.