Air Core Programme Completed at Garden Gully
- 274 AC holes drilled for 14,025m total advance
- 20 AC traverses across seven prospects
- Testing for near-surface extensions of mineralised structures
- RC and DD rigs currently on site drilling follow-up
- 39,979m drilled in 415 holes prior to current RC/DD programme
o 23,432m in 128 reverse circulation (RC) drill holes
o 2,523m in 13 diamond drill (DD) holes
o 14,025m in 274 AC holes
When all assay results have been received and collated then the resultant geological interpretations will be reported to the market, together with any significant findings.
Our initial shallow scout drilling at Garden Gully, which began in mid-2016, aimed to identify targets below the transported cover. The approach proved very successful, delivering several new prospects that were previously unknown, with Lydia a prime example. Given the positive outcomes of that initial exploration, we remain confident that these recently-completed air core traverses will identify multiple additional targets for more detailed follow-up in subsequent programmes.
With the increased understanding of the mineralisation controls gained from the drilling programmes carried out to date, it became clear that there were several untested areas along strike from known zones of mineralisation that offered potential to host repetitions or extensions. Air core represented the most cost effective way to test the model and identify further follow-up targets.
The Garden Gully project area is characterised by a veneer of transported cover of variable thickness, underlain in places by a hard subsurface layer of duricrust. We believe that the combination of these factors has contributed to past soil geochemistry surveys failing to identify and locate accurately the underlying primary mineralised structures that our exploration has found. This is the rationale for the programme of air core / narrow diameter hammer drill programmes - to penetrate the transported surface cover and generate more meaningful regolith geochemical profiles that we have shown to generate meaningful targets for follow-up deeper reverse circulation drilling.
About Garden Gully.
Thundelarra's wholly-owned Garden Gully project comprises 15 granted Prospecting Licences and 2 granted Exploration Licences covering about 78 square kilometres, located in Western Australia's Murchison region about 20 kilometres north-west of the town of Meekatharra.
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About Thundelarra Ltd
Thundelarra Ltd (ASX:THX) is primarily an Australian gold exploration company. Gold, either in stand-alone geological settings or in association with copper, is our principal target. Copper remains an important focus too. Our portfolio also boasts prospects with discovery potential for base metal (nickel, zinc, silver, lead), uranium and graphite mineralisation. We are active in Western Australia (WA) and the Northern Territory (NT).