Inaugural drill program completed at Wallaroo

Wallaroo prospect in Queensland.
Wallaroo prospect in Queensland.

Inca Minerals (ASX:ICG) has completed its inaugural 10-hole reverse circulation drilling program at the Wallaroo prospect at the MaCauley Creek project in North Queensland.

Drilling initially targeted a strong magnetic geophysical anomaly, spatially associated with outcropping copper mineralisation occurring as malachite and azurite.

Drill collars for six of the holes were designed to target outcropping copper mineralisation.

Limited visible copper was observed in the reverse circulation chips and logging of the drill chips has demonstrated that the strong magnetic anomaly which defines Wallaroo can be explained by the mass effect of a mafic intrusion.

Although drilling initially targeted a strong magnetic anomaly with outcropping copper mineralisation, four holes were also drilled in a low magnetics area but where there was extensive outcropping copper mineralisation.

While there was little visible copper at depth, all intersected lithologies were strongly altered.

Samples from all 10 holes have been submitted to ALS laboratory in Townsville with results expected shortly.

In addition to the drilling program, Inca also undertook additional prospecting and geological reconnaissance, mapping several new, previously unrecorded copper occurrences.

Copper was found in granites, calcsilicates and epidote-altered mafic volcanics, demonstrating that copper mineralisation is widespread and occurs in multiple lithologies.

Inca plans to record all exploration results from the drilling and reconnaissance work to determine the next steps given the disconnect between the outcropping mineralisation and the lack of visible depth extension.

Areas where previous rock chip assays returned anomalous lithium results were more extensively sampled and submitted for assay.

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