Tempest Minerals Ltd (ASX:TEM) has made strong drilling progress, intersecting considerable alteration and minor sulphides at its Meleya Project, part of the company’s flagship Yalgoo Portfolio in Western Australia.
The company has now completed a 637.1-metre diamond hole with thick sequences of highly altered mafic geology and minor sulphides observed throughout the hole.
Further, a parallel reverse circulation (RC) program of up to 4,000 metres has kicked off testing the multi-kilometre thickness and structures present within a possibly demagnetised zone at the Clover target.
This program is anticipated to then transition into a regional aircore and RC program of up to 13,000 metres designed to penetrate zones of cover and laterite weathering across the newly identified belt.
Drill highlights
Drill hole WARDH75 was drilled to 637.1 metres and designed to intersect the western edge of the multi-kilometre low magnetism zone.
The hole encountered a thick 68-metre laterite zone of weathered intrusives underlying the regolith profile with extensive highly sheared intermediate intrusives to 75 metres.
This is underlain by variably altered and mineralised fine-grained mafic to ultramafic sequences to 422 metres.
At 422 metres a sharp change to greenstones followed, with significant silica and epidote overprinting until 569 metres downhole.
Finally, a continuation of the dyke swarm continued till the end of hole at 637.1 metres.
This interval showed significant skarn-like alteration from 588-593 metres surrounded by significant silica alteration and trace sulphides.
Clover RC program
In conjunction with WARDH75, an RC program has commenced testing the lateral thickness and several geological structures and geochemical anomalies at the Clover target.
The company has designed 22 collars to a nominal 200 metres depth.
This will ensure that a continuous transect of the geology is revealed.
Key structures to test are the extension of the Orion alteration zone, Clover felsic zone (mag low), granite contacts and a demagnetised northeast-trending fault within Big Bell Monzonite.
Forward plan
Tempest’s upcoming work programs at Meleya:
- Complete Clover RC program.
- Commence Regional aircore program.
- Ongoing data acquisition and assessment.
- Ongoing fieldwork including soil sampling.