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Great Southern Mining and Gold Fields have initiated drilling in Queensland's Mt Dillon target, with preliminary results indicating potential for significant copper-gold deposits. The fully funded 1535-meter two-hole program is part of an earn-in agreement allowing Gold Fields to acquire up to a 75% stake by spending A$15 million on exploration. Initial observations suggest the presence of widespread sulphides and breccias consistent with epithermal gold mineralisation, though final assay results are pending. The project area near Townsville is known for large-scale deposits like Ravenswood and Mt Leyshon, fueling optimism for more major discoveries in the region.
Written locally by qwen2.5:14b on 2026-10-08,
using this article's own text rather than the other coverage of the
same event (that is the story summary below).
Story summary
Great Southern Mining and Gold Fields, a global mining giant, have revealed promising early results from their maiden drilling at the Mt Dillon target in Queensland, Australia. The 1535-meter, two-hole program was designed to explore an induced polarisation (IP) chargeability anomaly under Edinburgh Park, located 100km south of Townsville. Initial drilling found visual evidence suggesting a potentially substantial mineral-rich structure, extending well beyond the planned depths to 762.1m and 772.8m respectively.
This exploration is part of an earn-in agreement that allows Gold Fields to spend up to A$15 million on exploration for a 75 percent stake in the project. The Mt Dillon target sits within a region known for its significant epithermal and intrusive-related gold systems (IRGS) deposits, making it particularly promising.
While confirmatory assays are pending, early signs point to potential big copper-gold riches, fueling anticipation for further exploration efforts.
Written for “Copper Gold Discoveries Queensland” on 2026-10-08,
grounded in this article and the 0 other(s) covering the same event.
Great Southern Mining and global giant Gold Fields have uncovered fresh geological clues from maiden drilling at the duo’s Mt Dillon target in Queensland, with early smoke signals hinting at the potential for a big copper-gold system ahead of confirmatory assays in the coming weeks.
asserted
signals → uncover → weeks
The fully funded 1535-metre, two-hole program was designed to test a large-scale intrusive-related gold system (IRGS) at Edinburgh Park, under an earn-in agreement that allows Gold Fields to spend up to A$15 million on exploration for a 75 per cent stake in the project.
asserted
Fields → fund → project
The project itself sits in a monster gold province 100km south of Townsville, a region known for its huge epithermal and IRGS deposits.
asserted
project → sit → deposits
The highly anticipated program at Mt Dillon was designed to test a tantalising induced polarisation (IP) chargeability anomaly lurking beneath a preserved lithocap, with early indicators suggesting further exploration may be needed to chase up on the promising geological fingerprints.
uncertain
exploration → anticipate → fingerprints
Great Southern says both deep diamond holes were extended well beyond their planned depths to 762.1m and 772.8m respectively after intersecting visual evidence of a potentially sizeable mineral-rich structure.
asserted
holes → say → structure
Core logging observations revealed a 60m to 80m-wide fault zone near the surface, followed by volcanic and intrusive rocks showing pervasive alteration and disseminated pyrite (iron sulphide) commonly associated with epithermal gold mineralisation.
asserted
observations → reveal → mineralisation
‘This is a big target with multiple geological facets that make it attractive for a large-scale IRGS discovery.
asserted
it → make → discovery
Drill core from the lower sections of the holes contained several hydrothermal breccia zones with stronger alteration and pyrite content of up to five per cent.
asserted
core → contain → cent
The company says the alteration, widespread sulphides and breccias are all consistent with the presence of an intermediate-sulphuration epithermal system - hot, mineral-rich fluids from a source below.
asserted
alteration → say → source
Great Southern Mining managing director Matthew Keane said: “We eagerly await assay results of this maiden diamond drilling program at Mt Dillon.
asserted
We → manage → Dillon
This is a big target with multiple geological facets that make it attractive for a large-scale IRGS discovery.
asserted
it → make → discovery
The 1447-square-kilometre project lies in premier elephant country for copper-gold deposits, with the region hosting the 10-million-ounce Ravenswood gold system, the 3-million-plus-ounce Mt Leyshon deposit and the 2-million-ounce Mt Carlton operation.
asserted
region → lie → system
Exploration activity elsewhere in the north Queensland gold belt remains white hot, highlighting continuing interest in the district’s potential for additional large-scale gold and copper systems prime for major players with deep pockets like Gold Fields.
asserted
activity → remain → Fields
Although Gold Fields may not be a household name among ASX investors, the South African gold behemoth has certainly put its name on the map recently, lobbing a whopping A$38.7 billion takeover bid at Australia’s biggest gold producer, Northern Star Resources.
uncertain
behemoth → put → producer
The bid was rejected, but it would have created the world’s second-largest gold producer and underlines the scale of the company now backing Great Southern’s exploration push at Edinburgh Park.
asserted
it → reject → Park
The company says core processing is nearing completion, with the first results expected to start trickling in between late October and early November.
asserted
results → say → October
With a global gold giant such as Gold Fields running the show and footing the bill, Great Southern finds itself in an enviable position.
asserted
Southern → run → position
Given the first whiffs of a copper-gold prize in the drill core and the backing of a deep-pocketed major, there is likely to be considerable interest in whether the pending assays can deliver the goods.
asserted
assays → give → goods
Is your ASX-listed company doing something interesting?
asserted
company → list → something
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