McArthur Cu

McArthur Tenements

Location Map - TNG Copper Exploration Licences NT

McArthur - EL 27711

The McArthur River tenement, which is located approximately 50km south of McArthur township along the Tablelands Highway, covers part of the  prospective McArthur Basin geology 65km SW of the McArthur Zinc mine. The licence has two major copper targets – Kilgour Crossing and Donkey Yard, both of which have been explored intermittently over the past 50 years.
 
The tenement includes numerous other prospective copper targets identified from previous stream sampling results and prospective geology.

Mineralisation is hosted by the Mallapunyah formation, in two dolomitic and variably bituminous intervals informally termed the 'upper' and 'lower' copper beds, which are 1m to 150mm thick, respectively. Chalcocite and chalcopyrite are present in the 'lower copper bed' along its strike length of 500m. Copper mineralisation in the lower copper bed 5km north of the Kilgour crossing prospect comprised about equal quantities of chalcocite and bornite.

Previous exploration by companies including Carpentaria Exploration, Australian Geophysicals, Aberfoyle and Mount Isa Mines returned significant results from surface rock chip sampling including grades of up to 2.0% Cu at Donkey Yard and up to 1.9% Cu at Kilgour Crossing.

TNG is planning to commence exploration activities with a thorough rock chip sampling program at Kilgour Crossing and Donkey Yard, as well as at over six other previously identified geophysical targets and two copper occurrences identified by the Northern Territory Geological Survey (NTGS).

Latest ASX announcement - Initial Copper Exploration Completed At McArthur River Project, Northern Territory.

Black Springs - EL 28503

The Black Springs tenement is located 4km south of McArthur EL 27711 securing southern extensions of the prospective McArthur stratigraphy.

Yah Yah – EL 28509

The Yah Yah tenement, which is located approximately 50km south-west of the McArthur township, contains the historical Yah Yah copper mine, which was discovered in the 1900s and produced some 40 tonnes of hand-picked, high-grade copper (20-30% Cu) ore prior to 1912.

Yah Yah and the surrounding area were explored by Carpentaria Exploration in the late 1960s, CRA Exploration Pty Ltd in the 1980s and 1990s and BHP Minerals Pty Ltd in the 1990s. The old workings are focused on a narrow (less than one metre thick) brecciated zone across an exposed strike length of about 100 metres. No significant work or drilling has been carried out to define the extent of this mineralisation or structure.

A grab sample collected from a Yah Yah waste dump by CRA Exploration assayed 30.4% Cu. In addition, BHP completed a soil survey which returned best results of up to 562ppm Cu coming from a 300m wide zone over the old structure.

TNG plans to complete a thorough rock chip sampling program over the Yah Yah region in order to confirm the scope and tenor of mineralisation, and will potentially also conduct a VTEM survey to map the host rock.

 

New McArthur Licences