The Lynd/Dido Project encompasses an extensive igneous province, characterised by the mafic to ultramafic compositions of the Dido Plutonic Suite. Adjacent to this, the Lynd (formerly Big Mag) area stands out as a significant magnetic anomaly, covering around 80 square kilometres, and mirroring the magnetic properties of the Dido Plutonic Suite. Strategically situated along and proximate to crucial plate boundaries, the project presents ideal geological settings reminiscent of those hosting the renowned Norilsk and Voisey’s Bay-style magmatic Copper-Nickel-Platinum Group Element (Cu-Ni-PGE) deposits.
Prior Exploration Efforts
Anglo American’s exploration endeavours, which concluded in 2012 due to access constraints, yielded a comprehensive dataset from geophysical surveys, soil geochemistry analyses, and preliminary diamond drilling.
The AA drilling campaign at Palmer Rails North and South intrusions led to the discovery of a Voisey’s Bay-style Ni-Cu-PGE system, with nine diamond core holes totalling 2,643.1 metres uncovering magmatic sulphides in a variety of mafic-ultramafic rocks. Key results include intersections of up to 133m at 0.12% Ni and 105m at 0.14% Ni, with high-grade sub-intervals reaching 0.58% Ni and 0.28% Cu, among other values. The diverse rock textures and evidence of multiple magma pulses, along with contamination from country rock, suggest a complex magmatic system similar to large Ni-Cu-PGE deposits like Voisey’s Bay, highlighting the area’s significant exploration and development potential. These efforts corroborated the presence of extensive Voisey’s Bay-style Ni-Cu-PGE mineralisation.
Anglo’s inability to secure continued land access with a landowner in 2012 halted them from further exploration despite the significantly positive findings. Subsequently, Superior secured access agreements with the same landowner, allowing us to take over exploration activities.
Future Prospects and Exploration Strategy
Superior has identified over 40 high-priority magnetic targets and is continuing to interpret EM data to pinpoint further prospects. The upcoming phases of exploration will involve detailed geophysical analyses, field inspections, and the development of drill programs aimed at systematically exploring these high-potential targets.
The Project’s expansion and the comprehensive dataset inherited from previous explorations position it as a leading exploration initiative within the sector. With a focused approach to systematic exploration, Superior aims to unlock the vast potential of this region for significant Ni-Cu-PGE magmatic sulphide mineralisation.
Expansion and Growth
The Greenvale Project’s Lynd/Dido Project has been significantly expanded through the acquisition of four new exploration permits for minerals (EPMs) – EPM26751, EPM27754, EPM27755, and EPM27932. These permits increase the overall Greenvale Project’s coverage to 2,307 square kilometres, extending the exploration area approximately 40 kilometres southwest and 20 kilometres northward, enveloping the highly prospective Dido and Lynd igneous complexes.
This expansion aligns with a component of Superior’s strategic focus on the southwestern and western segments of the Greenvale Project, which are considered prime for world-class Ni-Cu-PGE magmatic sulphide deposits. The targeted geological formations, dating from ~470 to ~430 Ma, are situated at what is believed to be the eastern margin of ancient Australia, formed from the breakup of Rodinia. These areas feature deep penetrating faults, crucial for transporting magmas that can form significant ore deposits.
In March 2022, the completion of Superior’s permit acquisition with the grant of EPM27932 marked a significant milestone, securing a contiguous exploration domain that encapsulates the entire magmatic sulphide province. This expansion not only enhances the project’s potential for uncovering Voisey’s Bay-style Ni-Cu-PGE sulphide deposits but also elevates the Greenvale Project to a total area of 2,307 square kilometres.
Image of aerial magnetics over Lynd and Dido prospect areas (composite RTP colour with Tilt shade)
North western portion of Lynd showing potential ovoid intrusion and feeder system. Potential layered intrusion complex visible in the southern part of the feeder zone. Proposed drill holes also shown.
