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Legacy Iron Ore's (ASX: LCY) Koongie Park Project has demonstrated the potential for volcanogenic hosted massive sulphide (VHMS) mineralisation through reconnaissance work over the East Kimberley Project tenements.

This style of mineralisation is similar to that found at Sandfire Resources' (ASX: SFR) Doolgunna discovery and Independence Group's (ASX: IGO) Teutonic Bore, Jaguar and Bentley deposits.

This style of deposit is known worldwide to occur in clusters and often the early discoveries in these camps are not the largest.

Legacy's Koongie Park Project is contiguous with ground under exploration by Anglo Australian Resources, which has defined substantial base metal-gold-silver mineralisation in two deposits to date, as well as recently outlined a shallow supergene high grade copper resource.

Anglo Australian Resources' deposits host an Indicated and Inferred JORC Resource of 8 million tonnes at 3.3% zinc, 1.2% copper, 0.3 grams per tonne (g/t) gold and 23g/t silver.

Importantly, recent high resolution aeromagnetic data has shown the presence in Legacy Iron's ground of substantial areas of the same stratigraphic units that host Anglo Australian Resources' base metal mineralisation. These lie largely under shallow alluvial plain cover.

Fieldwork was aimed at validating these similar trends as much as possible.

The host Camp Shale unit was found to outcrop only in the most northern sector. However, weathering resistant tourmaline rich cherts were found as sparse outcrop and sub-crop in the southern sector within open alluvial plain.

Jillaroo prospect

At one occurrence, the Jillaroo prospect, the chert horizon contains a substantial gossan, representing weathered, leached sulphide mineralisation.

Assays, taken using a portable Niton XRF unit, showed substantially elevated base metal concentrations to 994 parts per million zinc, 173 parts per million copper, and 253 parts per million lead.

Planning has now begun for airborne VTEM surveying of the main prospective zones to define conductors representing sulphide rich zones.

Mt Bradley

Mt Bradley is one of the most advanced rare earth elements (REE) resources in Australia, having been the subject of major drilling and trial plant scale metallurgical testing by Union Oil Development Corporation during the 1980s. The high Niobium content of the resource is of particular economic interest.

The prospect lies immediately adjacent to Hastings Rare Metals' (ASX: HAS) REE Resource of over 22 million tonnes at 0.795% ZrO2, 0.31% Nb2O5, 0.023% Ta2O5 and heavy REE grades of 0.10% Y2O3, which also has potential for significant quantities of heavy REE including dysprosium and yttrium.

The REE mineralisation is hosted by tuffaceous rhyolitic volcaniclastics of the Brockman Volcanics - the 'Niobium Tuff'.

Similar rhyolitic to alkalic intrusives are known to occur within the Mt Bradley tenement and were highlighted in a recent Geological Survey of WA assessment.

In limited fieldwork, outcropping syenitic intrusives and possible volcanics in the southern area were mapped and assayed using a portable Niton XRF unit, returning anomalous niobium assays of up to 1,440 parts per million.

A helicopter-borne field investigation is scheduled within the next month to investigate the most prospective stratigraphy located in the northern part of the licence.

East Kimberley Projects

The East Kimberley Project tenements are located in the Halls Creek area, 347 kilometres south of Kununurra.

These tenements comprise three exploration licences - Koongie Park, Mt Bradley and Antrim Plateau - considered prospective for REE, niobium and base metals.

Recent exploration activity by Legacy, including geochemical sampling, has indicated the potential for volcanogenic hosted massive sulphides at Koongie, manganese and copper mineralisation at Antrim Plateau, and manganese and rare earths mineralisation at Mt Bradley.

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