The Nebo-Babel deposits are both hosted by a sub-horizontal, tube-shaped mafic intrusion which is classified as a gabbronorite. The mafic intrusion has a known extent of 5 kilometres, trends in an easterly direction, has a gentle 15 degree dip to the south and, in the case of Babel, a less than 10 degree plunge toward the southwest. Babel and Nebo are separated by the steeply-dipping, north-south trending Jameson Fault. Babel occurs to the west of the fault and Nebo occurs to the east.

Babel consists of three main lithostratigraphic units, which are variably textured leucogabbronorite (VLGN) that forms the outer shell around mineralised gabbronorite (MGN), and barren gabbronorite (BGN) in the core of the intrusion. At Nebo, the main lithostratigraphic units are VLGN that forms an outer shell of the intrusion around barren gabbronorite, and oxide-apatite gabbronorite, which occurs in the core of the intrusion at the eastern end.

The Nebo-Babel deposits contain two main styles of mineralisation: disseminated gabbronorite-hosted sulphides, which represent the bulk of the mineralisation, and massive and breccia sulphides, which are a comparatively minor component of the overall sulphide inventory.

Interpretation and wireframes have been constructed for lithology (including dykes), weathering and estimation grade domains. Mineralisation is intimately associated with the brecciated contact of the gabbronorite intrusive into the surrounding orthognei ........

The West Musgrave Project considers the Babel and Nebo deposits. Both deposits are near surface and most suitable to be mined by open pit mining methods. The pits will be mined with multiple pushbacks, using large-scale mining equipment and with mining costs expected to be minimised through the use of automation in the area of autonomous haulage, autonomous water truck and semi-autonomous drilling. Mining is proceeding in a sequence from two initial starter pits, stage 1 and 2, supplying pre-strip development waste for ROM pad construction and ore for process plant commissioning. Production will subsequently be ramped up for full-scale ore processing, with the open pits expanded and deepened.

The deposits are near-surface and easily accessible by open pit mining with a pre-concentrate mining and initial ore stockpile for processing plant commissioning, some of which will be free dig. Processing rates have been thoroughly examined and an optimised rate of 12 Mtpa ramping up to 13.5 Mtpa has been selected. Stockpile strategies and in-pit dumping of waste have all been optimised to minimise operating cost and maximise mill feed grade.

Mining continues to be conventional drill, blast, load and haul with an owner-operator workforce implementing an autonomous fleet from day one.

Babel will be mined for the first two years to access higher grade, near-surface mineralisation, with Nebo to begin mining from year two.

A site layout was devel ........

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