Tarrina Resources Ltd
Tarrina Resources Confirms High-Grade Gold Beyond Historic Workings at Christmas Gift
Tarrina Resources (ASX: TR8) has reported final gold assay results from its six-hole Phase 1 diamond drilling program at the Christmas Gift Gold Project in southern New South Wales, with the program confirming that gold mineralisation extends well beyond the historic mine footprint. According to the ASX announcement, gold was intersected in all six holes across more than 1,050 metres of strike, compared with only about 200 metres historically mined.
For investors following ASX gold exploration stocks, the latest update matters because it combines three important outcomes in a single program: validation of historic high-grade drilling, confirmation of mineralisation adjacent to old workings, and evidence that the broader system remains open along strike and at depth. The standout result was 0.5 metres at 42.26 g/t Au in hole CGDH002, intersected in the footwall of a mined-out stope.
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Phase 1 Drilling Returned Gold in Every Hole
The Phase 1 program was designed with two purposes. First, Tarrina used modern drilling and quality assurance methods to test historic high-grade intersections beneath the Christmas Gift mine. Second, the company drilled step-out holes north and south of the mine area to assess whether the gold system continued beyond the historic workings.
According to the drilling update, both objectives were met. The mine-area holes produced the widest and highest-grade results, while the step-out holes returned narrower but still meaningful gold intersections in fresh bedrock. This outcome supports the view that the broader mineralised corridor has not yet been fully tested.
Key reported intersections from the program are set out below.
| Hole | From (m) | To (m) | Width (m) | Grade (g/t Au) | Context |
|---|---|---|---|---|---|
| CGDH001 | 58.0 | 72.5 | 14.5 | 2.23 | Validation hole at mine area |
| CGDH001 | 75.6 | 92.0 | 16.4 | 2.06 | Validation hole, separated by mined stope |
| CGDH001A | 85.4 | 93.0 | 7.6 | 0.89 | Down-dip extension |
| CGDH002 | 36.9 | 42.0 | 5.1 | 2.39 | Northern mine section |
| CGDH002 | 42.9 | 47.5 | 4.6 | 5.42 | Northern mine section |
| CGDH002 | 68.6 | 69.1 | 0.5 | 42.26 | End of hole, adjacent to stope |
| CGDH003 | 76.0 | 77.0 | 1.0 | 1.53 | Step-out south of mine |
| CGDH004 | 19.0 | 19.8 | 0.8 | 2.21 | Step-out north of mine |
| CGDH005 | 62.0 | 63.0 | 1.0 | 2.33 | Step-out north, fresh rock |
The announcement also noted additional lower-width gold intervals across the program, with a maximum drill depth of 234 metres in reported mineralised intersections and total drilling of 1,180 metres.
High-Grade Gold Remains Beside Historic Stopes
One of the more important findings in the report is the confirmation that historic mining did not remove all of the high-grade mineralisation. This is especially relevant at projects with old workings, where the key question is often whether remaining material exists outside or beneath previously mined zones.
"Several holes intersected significant gold intercepts immediately adjacent to historic stopes, including the highest-grade interval of 0.5m at 42.26 g/t Au, confirming that historic mining did not extract all of the high-grade gold mineralisation."
— Francis De Souza, Chairman, Tarrina Resources
The 42.26 g/t Au result in CGDH002 was reported from 68.6 metres to end of hole, after the drill hole intersected a mined-out void and had to be terminated. In practical terms, this means the hole cut very high-grade gold immediately next to an old stope, but did not continue far enough to test the full extent of that structure down dip.
That point is material. If the hole had to stop at the void, the continuation of the high-grade structure remains untested below that point. For investors, this supports the case for follow-up drilling beneath the old mine workings.
Furthermore, the validation holes replicated mineralised zones on two sections spaced 60 metres apart, providing evidence that the mine-area system has continuity between sections. According to the announcement, the down-dip extent on the southern section may exceed 100 metres, based on historic drilling, but has not yet been tested by deeper modern drilling.
Why Shallow Historic Drilling May Have Missed the Main Bedrock Gold
A central technical theme in the exploration update is supergene gold redistribution. While the term is specialised, it is important because it helps explain why Christmas Gift may be larger than historic drilling suggested.
What Is Supergene Gold Redistribution?
Supergene processes occur near surface when weathering changes the original distribution of metals in rock. In a gold system, this can move some gold upward or sideways through the weathered zone, concentrating it closer to surface. However, this process also leaves a depleted zone below, where gold grades appear weaker before stronger primary bedrock mineralisation resumes at depth.
In simple terms, drilling shallow holes into a surface gold anomaly does not always test the main source of the gold.
Why Does This Matter at Christmas Gift?
According to Tarrina, historic drilling outside the mine area had an average depth of only 33 metres. The company believes this depth corresponds broadly with the 20 to 35 metre depletion zone created by weathering. As a result, many historic holes may have stopped before reaching the bedrock structures carrying the main gold mineralisation.
The ASX announcement also states that bedrock gold at Christmas Gift can be offset by up to 100 metres from the surface gold anomaly. That is a meaningful exploration point. It suggests the known 1 kilometre soil anomaly corridor between Venables, Christmas Gift, and Cullinga Extended may not have been effectively drill tested in the right place or to sufficient depth.
For non-specialist readers, this is one of the more important educational takeaways from the update: surface gold anomalies do not always sit directly above the bedrock source. In weathered terrains, understanding that offset can materially improve drill targeting.
Historic shallow drilling averaged 33 metres, while Tarrina reports the main bedrock gold system may sit below a weathered depletion zone and be offset from the surface anomaly by as much as 100 metres.
Multiple Parallel Gold Structures Point to a Broader System
The drilling update also highlighted a structural observation that may influence future scale potential. Rather than a single narrow lode, the company reported multiple parallel gold-bearing structures in the mine area.
This matters because parallel structures can indicate more than one mineralised reef or shoot within the same broader corridor. In many orogenic gold systems, repeated structures can provide additional drilling targets along strike and down dip, rather than limiting mineralisation to one main vein.
At Christmas Gift, the step-out holes north and south of the mine returned narrow gold intersections associated with quartz reef and pyritic stockwork mineralisation. In more accessible language, this means the drill holes encountered quartz-rich and sulphide-bearing zones that are often associated with the edges of stronger gold systems.
According to the report, these narrower intercepts resemble mineralised zones peripheral to the broader higher-grade reefs in the mine area. That does not prove a larger high-grade zone nearby, but it does support the company's interpretation that the controlling structures hosting the main gold mineralisation have not yet been fully identified outside the historic mine.
What Comes Next at Christmas Gift?
The ASX announcement laid out a clear next phase of work focused on improving geological understanding and preparing follow-up drilling. Near-term activity is expected to include:
- Detailed re-logging of the Phase 1 diamond core
- Final multi-element assay results for Ag, Zn, Cu and As by the end of July 2026
- Updated 2D and 3D geological and gold grade models
- Field checking of anomalies from the soil sampling programme
- Planning for air-core and RC drilling along strike and down dip
The company stated that follow-up drilling is planned between the Christmas Gift mine and Cullinga Extended, with the aim of infilling and extending mineralisation and testing the broader soil anomaly corridor for bedrock gold.
Priority target areas mentioned in the report include the following:
| Target Area | Why It Matters | Current Status |
|---|---|---|
| Christmas Gift down dip | Limited deep drilling beneath historic workings | High priority |
| Cullinga Extended | Historic high-grade gold intersection reported previously | High priority |
| Venables | Shallow historic hits require deeper testing | High priority |
| Northern extensions in EL9683 | Soil sampling underway, limited drilling | Untested |
| Western Zone | Broader lower-grade system identified historically | Early stage |
| Eastern soil anomalies | Potential additional bedrock targets | Untested |
The company also stated that, subject to results, drilling could progress toward pattern RC resource drilling and support work required for a future JORC-compliant Mineral Resource Estimate.
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Why the Christmas Gift Results Matter to Investors
The investment relevance of this update lies less in any single intercept and more in what the full data set indicates. The Phase 1 programme appears to have reduced several common early-stage exploration uncertainties.
First, the drilling reportedly validated historic high-grade results using modern methods. Second, it confirmed that high-grade gold remains adjacent to old workings, including material immediately beside mined-out stopes. Third, it expanded the confirmed mineralised footprint to more than 1,050 metres of strike.
There is also a geological explanation for why the system may have been under-tested historically. If the company's interpretation of supergene effects and bedrock offset is confirmed through follow-up work, much of the known anomaly corridor may remain open to deeper discovery.
The project sits in the Lachlan Fold Belt, a well-known gold province in New South Wales. Tarrina's announcement notes that the broader Cullinga Goldfield historically produced about 30,000 ounces of gold at an average grade of 18 g/t Au between 1892 and 1941. The Christmas Gift mine contributed about 21,540 ounces, with tailings production also reported historically. Those production figures provide context for the high-grade character of the field, although current exploration results remain at the drilling stage rather than the resource stage.
What Should Investors Watch Next?
For investors assessing Tarrina Resources share price catalysts, the near-term watch list is relatively clear:
- Final multi-element assays
- Geological interpretation from core re-logging
- Targeting of the 1 kilometre-plus anomaly corridor
- Follow-up air-core and RC drilling
- Evidence that deeper drilling can extend the mine-area high-grade zones
At this stage, the report supports the view that Christmas Gift is moving from historic prospectivity toward more systematic modern evaluation. Whether that leads to a resource-scale outcome will depend on the next rounds of drilling. However, the latest results appear to have strengthened the geological basis for that work considerably.
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