The East Arunta region forms part of the Aileron Terrane that represents a ribbon microcontinent accreted on the margins of the North Australian Craton during rapid orogenesis c. 1,860 – 1,800 Ma. The projects are considered prospective for a variety mineralisation styles, including IOCG, polymetallic skarn, orogenic Au, and diamonds. Potential also exists for Li and REE enrichment.

Prospectivity of the East Arunta Group was identified by MRG in 2018-2019 during an in-depth review of the underexplored Aileron Terrane. Despite thin but persistent sand cover over much of the region, which has impeded historical geochemical exploration, several large prospects are known that host outcropping, high grade Cu mineralisation with associated Au, Ag, Fe, and Bi.

Exploration undertaken to date at Jean Elson – currently the only granted tenure – has included geological reconnaissance, c. 30,000-line km of detailed airborne magnetic-radiometric surveying, 310km² of versatile time-domain electromagnetic surveying, 197km² of ground gravity surveying, and 17km² of gradient array induced polarisation surveying. These programs have successfully identified additional areas of interest that are largely concealed by the thin aeolian sand cover.

Further information regarding the East Arunta Group projects can be found via Inca Minerals’ ASX announcements at www.asx.com.au/markets/company/icg or www.incaminerals.com.au