The
Phase 1 Exploration Programme
Available results for the Phase 1 greenfield exploration programme, which is planned for completion in the
2020
A large 1,200km2 (4,755 line-km at a 250m line spacing) SkyTEM AEM survey has been carried out over areas not previously covered by modern AEM. The aim of the survey is to identify goldcopper targets, including high-grade targets, beneath shallow cover. The AEM survey included a region of the El Paso Structural Corridor coming to within 9km of the Havieron highgrade gold-copper deposit. AEM has been instrumental in several significant
2020
AEM20-01/NP37 (Grilla prospect) = 700 x 500m magnetic high and two partially coincident bull's-eye AEM late-time conductivity highs and partially co-incident gravity high anomaly: Located 45km NE of Telfer and 37km NNW along strike of Havieron
Proximal to major NW trending structure linking the Havieron gold-copper deposit and Winu copper-gold deposit
Less than 60m of cover
Three of four 70m historic drill holes immediately north of the AEM anomaly returned 1m intervals grading between 0.12 to 0.57 g/t gold
AEM20-02 = 800 x 600m partially coincident bull's-eye AEM late-time conductivity high and gravity high anomaly: Located 12km and 5km west of the Telfer and Fallows gold-copper mines respectively
Located just 3km and 6km NW along strike from the Joy's Gossan and Hasties goldcopper-arsenic mineral systems respectively, which represent a 13km long brecciated, hydrothermally altered, and mineralised trend
Situated on a possible thrust ramp structure
Shallow cover
Area has very limited nearby and ineffective 40 to 67m deep historic air core drilling
AEM20-03 = 1.2km bull's-eye AEM subtle late-time conductivity high and associated disrupted linear magnetic high anomalies: Situated on possible Havieron stratigraphic equivalent
Concealed beneath paleochannel cover (depth unknown > 68m)
Area with only one nearby historic air core drill hole which did not reach basement
2019
Intrepid Geophysics (Intrepid) re-processing and interpretation of the data from the AEM survey completed by Antipa in 2019, using proprietary 2.5D inversion MOKSHA-EM software has identified six additional EM conductivity targets which are the subject of ongoing review and will be reported in more detail once finalised.
Remaining Phase 1 Exploration Programme
The remaining Phase 1 greenfield exploration programme consists of the following work to be completed by the end of
Ongoing review of AEM results in conjunction with other data.
Planning for drill testing of high priority AEM and magnetic targets.
Aeromagnetic survey covering 800km2 and 8,000 line-km at a 100m line spacing over areas requiring enhanced magnetic resolution, including over the Grilla magnetic and potential AEM target.
Ground based gravity survey over selected target areas aimed at identifying gold-copper targets beneath areas of deeper cover, recently completed with data pending.
Intrepid processing and interpretation of the data from the 2020 AEM survey pending delivery of final AEM data.
An ongoing review and interpretation of historic exploration data to enhance geological modelling, and potentially identify further target areas for gold-copper mineralisation.
Phase 2 Exploration Programme
The Phase 2 greenfield exploration programme to be completed this calendar year (subject to the appropriate approvals) includes the drill testing of high priority gold-copper targets identified during Phase 1. The exploration will consist of:
Heritage survey scheduled to be carried out during the first half of September.
Reverse Circulation (RC) +/- diamond core drill programmes testing priority targets under shallow cover, including Havieron high-grade gold-copper analogue magnetic and AEM conductivity anomalies, including Grilla.
These high priority targets, including nine magnetic (refer to ASX release dated 20 July) and three electromagnetic targets, share some or all of the following characteristics with the highgrade Havieron gold-copper deposit: Located within the fertile El Paso Structural Corridor, which hosts the Havieron, Winu and Minyari-WACA deposits, displaying favourable structures (including folding and shearing / faulting)
Bull's-eye to sub-circular magnetic high anomaly
AEM conductivity high anomaly
Interpreted meta-sedimentary host rocks including possible Havieron type lithologies
Related gravity high / shoulder anomaly
The
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