Greenvale Energy (ASX: GRV) has identified key extensional drill targets immediately along strike from known mineralisation at its Oasis uranium project in Queensland after receiving chemical assays from a 2025 trenching program.
The highly-encouraging results were generated between October and November from six trenches for a total 775 metres.
Each trench was approximately 2m in width and depth, and radiometrically surveyed using hand-held scintillometers to collect 449 samples.
The trenches were positioned to establish a geochemical, geological and structural profile in likely extensional areas along strike from the main deposit.
They tested coincident Sentinel-2 multispectral gas anomalies along with targets identified from a close-spaced, high-resolution, ground magnetic survey completed last year, enabling calibration with previous assays to differentiate natural background uranium from the anomalies.
Oasis Shear Extension
Trenching results support a northern extension of the mineralised Oasis Shear, with two broadly north-south and northwest-southeast-trending structures identified either side of the main mineralised zone.
Background uranium values at surface of up to two parts per million were recorded, making any trench assays above a lower cut-off value of 4ppm uranium anomalous.
Greenvale has considered minor rare earth element anomalies presenting as geochemical pathfinder elements to be vectoring tools for further regional exploration.
New targets have been defined to the northwest, east and north of the Oasis Shear and drill testing of the trench anomalies has been scheduled for the new field season.
Step-Out Drilling Growth
Chief executive officer Alex Cheeseman said the trenching results indicated that further growth can be realised from targeted step-out drilling of the Oasis deposit.
“The three anomalies defined by the trenching program corroborate this interpretation, showing excellent correlation with the position of the mineralised shear and indicating potential parallel and cross-cutting mineralised features,” he said.
“Trenching has proven to be a fast and relatively low-cost method of mapping surface geochemical anomalism — the geological and structural knowledge we have gained from this program will be incorporated into a wider, more regional model in preparation for upcoming field work.”
Due to the current weather events in Northern Queensland, Greenvale now expects to commence that work in April, with a focus on ground-truthing and further developing regional targets surrounding the Oasis deposit.
The company is working with stakeholders and contractors to mobilise to site as soon as it is safe and practical to do so.
