New Phase Of Drilling At The Brownfield Trundle Project
MELBOURNE - Kincora Copper Limited announced the commencement of drilling at the Dunn's North prospect situated at the brownfield Trundle project, located in the Macquarie Arc of the Lachlan Fold Belt (LFB) in NSW, Australia.
John Holliday, Technical Committee Chair, and Peter Leaman, VP of Exploration, commented, “Drilling at Dunn's North will for the first time follow up shallow ore grade mineralization, 10 meters @ 1.99 g/t gold and 0.12% copper from only 36 meters, returned above and on the margin of significant, untested, coincident magnetic and Induced Polarization (IP) geophysical features. The target is a larger porphyry deposit responsible for that ore grade mineralization and the geophysical features.
The Dunn's North prospect is the first to be tested of five high conviction, standalone, large-scale, new porphyry discovery opportunities that are scheduled to be drilled during this program at Trundle. This conviction is underpinned by strong geological vectors and complementary geophysics identified in our recent extensive technical reviews."
Kincora's next phase of drilling at the Trundle project has commenced at the Dunn's North prospect which will for the first time follow up shallow ore grade mineralization that is interpreted to have drilled short and on the margin of an associated and untested porphyry complex.
Favorable gold, copper and pathfinder element results were identified at the Dunn's North and South prospects during Kincora's detailed 2022 technical reviews of the Trundle Park prospect and adjacent open mineral systems. This included results from limited prior explorer drilling at the wider Dunn's prospect area and Kincora's 2022 air-core drilling program at a region north of the Dunn's North prospect that returned favorable intrusives and gold anomalism.
Of particular note was Placer Pacific Ltd's RAB and percussion drilling, and basement sampling, at the wider Dunn's prospect in 1986. This program returned favorable host volcanics intruded by a least three mineralized bodies of mafic monzonite and monzodiorite, including 10m @ 1.99g/t gold and 0.12% copper from 36m within a total hole interval of 48m @ 0.44 g/t gold and 0.04% copper from surface. This ore grade interval sits short and on the margin of a subsequent High Powered Exploration (HPX) Typhoon™ IP chargeability high 5 – suggesting sulphides such as copper and/or gold – coincident with the shoulder of regionally significant magnetic feature – suggesting a porphyry complex.
At the neighboring Dunn's South prospect, which based on magnetics, previous down-hole mineralization and basement sampling is interpreted be the southern extension of the Dunn's North system, limited drilling by Newcrest Mining Limited has confirmed a favorable host and porphyry system environment. Petrology and fertility analysis indicates fertile and mineralized shoshonitic intrusives comparable to Northparkes and Cadia, with Kincora relogging of diamond core identifying at least four felsic intrusion types and quartz-carbonate-pyrite veins with chalcopyrite and bornite.
The designed maiden Kincora drilling program at the Dunn's prospects will for the first time test the core magnetic and interpreted porphyry complex: 1) Dunn's North: commenced hole TRDD035 is designed to drill through shallow and open mineralization, including 48m @ 0.44 g/t gold and 0.04% copper from surface to end of hole with 10m at 1.99 g/t gold and 0.12% copper from 36m, into a previously untested coincident chargeability and magnetic high, and resistivity anomaly. The geophysical features supports a further 200-400m extension to the existing mineralized system. 2) Dunn's South: planned hole TRDD036 is designed to drill through shallow and open mineralization, including 100m @ 0.4 g/t gold, with 4m at 1.69 g/t gold and 2m at 1.96 g/t gold, into the core of a previously untested magnetic anomaly. Limited prior drilling returned the previously noted multiple phase and mineralized intrusive system despite drilling away from the magnetic complex and target zone.
The Dunn's North and then Dunn's South prospects are the first of a total of five adjacent systems and separate large-scale porphyry targets to be tested in this current phase of drilling across an existing 3.2km mineralized strike, which remains open, at the Trundle project.