Cazaly Resources (ASX:CAZ) reports it has received assays showing ‘broad’ copper intercepts at the Bommie porphyry copper prospect located within the Halls Creek Project in Western Australia.
The company’s reverse circulation (RC) drilling program began in August this year, and a total of 19 holes were drilled for 4,049m to test the Moses Rock Electromagnetic conductor and the Bommie porphyry copper system.
At Moses Rock, Cazaly drilled 3 holes for 654m to test the modelled EM conductor 5km to the southwest of the Mount Angelo North copper-silver-zinc resource.
The EM conductor was modelled around 100m below surface for a strike distance of approximately 300m, dipping ‘steeply’ towards the southeast.
Cazaly reports drilling intersected a narrow sulphidic zone with up to 80% pyrrhotite and pyrite from 212m to 214m downhole.
The sulphidic intersection coincided with the position of the modelled conductor plate, however the company reports no anomalous assay results were reported.
At Bommie, Cazaly reports 16 holes were drilled for 3,395m to test the continuity of ‘broad’ copper intercepts across the prospect on an approximate 100m by 100m grid.
The Bommie prospect is located 2.5km southwest of Mount Angelo North, and the company interprets this system as a ‘large low-grade’ porphyry copper system with ‘significant’ drill intercepts.
Cazaly reports ‘broad’ intercepts recorded at Bommie include 110m @ 0.4% Cu from surface in HCRC0065, including 4m @ 1.1% Cu from 78m.
Drillhole HCRC0067 intersected 126m @ 0.3% Cu from 54m, while hole HCRC0077 intersected 114m @ 0.3% Cu from 2m, including 4m @ 1.1% Cu from 46m.
Further intercepts recorded include 102m @ 0.3% Cu from surface in HCRC0079, 100m @ 0.3% Cu from surface in HCRC0080, and 78m @ 0.3% Cu from 72m in HCRC0074, including 2m @ 1.1% Cu from 78m.
The company says the copper intercepts show some variability in thickness with ‘higher grades’ occurring at the northern end of the deposit.
It also reports elevated copper grades coincide with over 3% sulphides, and preliminary assessment of the multi element geochemical data suggests copper has a positive correlation with silver.
Cazaly reports multielement geochemical data assessment is ongoing in order to better characterise the ‘unusual’ Proterozoic porphyry copper deposit.
Cazaly Managing Director Tara French said the company is pleased with the intercepts recorded in the drilling program.
“We are pleased to see broad intercepts of copper mineralisation at the Bommie prospect, with over 100m of mineralisation extending from surface”
“We are pleased to see broad intercepts of copper mineralisation at the Bommie prospect, with over 100m of mineralisation extending from surface.
We look forward to receiving the maiden resource estimation next month and are further encouraged by the current mineralisation envelope, which is open to the north and west of existing drilling, indicating further growth potential of this copper deposit.”
The Halls Creek Project is located 25km southwest of Halls Creek in the East Kimberley region of Western Australia.
Cazaly Resources is a Perth-based exploration and resource development company.
Its projects include the Halls Creek Copper Project, the Ashburton Projects, the Vanrock Polymetallic Project, the Yabby Project, the McKenzie Springs Nickel-Graphite Project, The Mt Venn Gold Project and the Kaoko Cobalt Project in Namibia.
Images: Cazaly Resources Limited & iStock