Infinity Mining uses smart geology to grow Pilbara lithium footprint

Having identified a number of new targets, Infinity Mining expects to expand its lithium footprint at the company’s Woody Prospect in the Pilbara and will now be looking to other lithium explorers in the area for a venture partner with which to advance future drilling.

The company has identified seven high-priority pegmatite targets using Ambient Noise Tomography (ANT) geophysical survey - an exploration technique never previously used in WA in its hunt for lithium in the Pilbara. The company also believes the novel technique – which detects sound travelling through materials – could possibly reveal, not only a new pegmatite pool, but also a range of other minerals lurking beneath.

We are thrilled with the results from our recent ANT geophysical survey which has not only identified high-priority lithium targets but also confirmed the effectiveness of advanced passive seismic technology in our exploration strategy. The ability to pinpoint subsurface structures indicative of larger concealed lithium pegmatite bodies gives us a significant advantage as we continue to build the project scale. Dimond drilling is needed to gain a deeper understanding of these target zones. This next phase of exploration will provide invaluable geological data that will guide our ongoing exploration and contribute to Infinity’s growth in the lithium sector. To this end the company is seeking a venture partner to continue the journey Infinity Mining started in 2002.

The ANT survey was designed to follow up the recently generated targets at the “Western Grid” spreading across a 200m x 200m expanse where noticeable pegmatite outcrops have already been identified.

Seeking to open up further opportunities, Infinity is also focusing in on the Eastern Grid where it believes there may be a number of concealed targets and lithium mineralisation.

The company says, while the exact depths and thicknesses of the seven pegmatite targets already outlined may be difficult to quantify, they appear as relatively flat lying concealed zones which cut through the steeply dipping stratigraphy.

The target zones, labelled 1 and 2, lie directly below mapped outcropping lithium bearing pegmatites where the company’s previous drilling intersected spodumene bearing pegmatites dykes at depth.

Early testing at the host basalt at target 1 has produced a strong magnetic response along strike from the prospect. The less magnetic felsic schist to the east also appears to show subtle magnetic destruction.

The company believe its Naughton Prospect may also have more to offer with the target extending to approximately 350m which Infinity suspects may be a feeder structure, with thicknesses varying from 30m to 100m.

Located at the northern end of the central ultramafic (komatiite) unit of the Euro Basalt, Target 2 exhibits magnetic signature destruction in the komatiite unit. The target lies just below the 2022 RC drilling at the McNeill Prospect and measures around 350m by 300m, with a thickness of around 40m. It also extends to roughly 350m below the Naughton Prospect drilling area, possibly in a feeder structure.

Infinity appears to be moving forward at a rapid clip with its next move focused on advancing two 300m diamond drill holes targeting the northern and southern ends of Target 1 beneath previous Reverse Circulation (RC) drilling and surface sampling at the Naughton Prospect. Given the plethora of encouraging signs from its early work, the company’s search for an exploration partner should not prove too difficult.

Is your ASX-listed company doing something interesting? Contact: matt.birney@wanews.com.au