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NEWGENGOLD PREVIEW

WINU-NGAPAKARRA

Owner: Rio Tinto Ltd The deposit is hosted in metamorphosed sandstones and
Location: Paterson Province, Western Australia siltstones and lesser mafic rocks which are most likely
Reserves: N/A correlatives of the upper Malu Formation of the Yeneena basin,
Resources: 503mt @ 0.35% copper, 0.27 g/t gold also host to the Newcrest’s Telfer gold-copper deposit.
and 2.15 g/t silver The structure is dominated by a gently plunging Miles Orogeny
Project status: Unknown
monocline which was refolded during the Paterson Orogeny to
long with Greatland Gold plc/Newcrest Mining form a half dome. Copper-gold mineralisation occurs in a series
ALtd’s Havieron (see page 16), Rio Tinto Ltd’s Winu- of lodes with strike lengths of 350-750m, northerly trends and
Ngapakarra copper-gold-silver deposit represents the great moderate easterly dips surrounded by a more extensive halo of
opening up of Western Australia’s Paterson province. low-grade mineralisation.
Discovered by Rio Tinto in late-2017, Winu was found after Two gold-rich lodes in the south-east part of the Winu deposit
following up structural-geophysical targets defined in 2016. strike roughly east-west towards a gold-rich satellite deposit
called Ngapakarra about 2km east.
The major turned its balance sheet power immediately towards
the early-stage project, building a large exploration camp with According to Rio Tinto, mineralisation at Winu was most likely
triggered by rapidly changing stress fields and cooling of
dedicated emergency airfield as it set about drilling 260,000m
in less than three years. multiple fluid pulses around an intruding granitoid pluton during
the broadly north-south compressive Paterson orogeny.
By early 2020 initial geological, structural, metallurgical and
grade models had been completed and in July 2020 a maiden The breakthrough discoveries of Winu and Havieron have
resource of 503mt @ 0.35% copper, 0.27 g/t gold and 2.15 g/t thrown new light on a province often avoided because of the
silver (with a high-grade component of 188mt @ 0.55% copper, considerable, seemingly impenetrable transported sand cover.
0.36 g/t gold and 3.21 g/t silver) was released to the market. Subsequent years have seen a rush to peg ground in the district.

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