Greenvale identifies multiple NT uranium anomalies at Jindare and Henbury

Modelling of magnetic and radiometric survey data over the Jindare and Henbury projects has revealed several uranium anomalies requiring follow-up investigation.

Greenvale will carry out follow up mapping and sampling programs to test the uranium anomalies at Jindare and Henbury in June. Pic: Getty Images

Special Report: Geological fieldwork by Greenvale Energy at the Jindare project in the NT has uncovered five zones of discrete equivalent uranium anomalies, each requiring prompt follow-up.

• Modelling of magnetics/radiometrics flown over the Jindare and Henbury projects returns multiple uranium anomalies
• Five zones of uranium anomalies at Jindare and 10 anomalies at Henbury
• Additional fieldwork, including mapping and sampling, is planned for the latter part of 2025 

With results that far exceed background uranium levels, it opens the door for Greenvale (ASX:GRV) to make a potential discovery in one of the few jurisdictions in Australia open to uranium production.

Detailed interpretation of airborne magnetics and radiometrics flown over the Jindare asset identified the anomalies, which are significantly higher than the background rocks. 

Suppressing magnetic sources below 500m, this interpretation has highlighted five different structural orientations including a prominent twin set on NW breaks on the southern portion of the AMR survey, suggestive of a graben, which is supported by drainage patterns and gravity. 

 A north-north-west trend was also picked up, which appears to have controlled the emplacement of interpreted pipe-like bodies, as well as north-south to north-north-east cross-cutting structures. 

To facilitate the magnetic inversion of the southern Jindare area, the Greenvale and United AMR surveys were merged, with the results correlating well with the interpretation of limited government wide spaced AEM traverses in the area.

Henbury NT project 

Over at the Henbury project south of Jindare, airborne magnetics and radiometrics highlighted 10 elevated uranium anomalies, typically coincident with outcrop. 

A 10km long arcuate eU response, thought to be within ferricrete overlying Mereenie Sandstone, is the highlight and will be a priority follow-up exploration target. 

Band pass filtering, a tool used in geology to enhance specific wavelengths or frequency ranges in geophysical data which helps to isolate geological features and remove noise, highlighted bedding, palaeochannels and structural trends across the asset. 

GRV says it is now in the process of flying a 100m line spaced airborne magnetics/radiometrics (AMR) survey over Elkedra and Douglas River, to complement and abut the existing Jindare survey. 

QLD Oasis asset 

Meanwhile, fieldwork at the Oasis project in QLD has been delayed due to an extended wet season. 

Oasis sits within the eastern portion of the Georgetown Region in a terrane bounded by the Far East and the Lynd Mylonite Zones. 

The project contains the Oasis uranium prospect, discovered in the 1970s, which has been explored sporadically ever since. Despite this history, there are still gaps in the geological understanding of the nature of the uranium mineralisation at Oasis.

Recent work by Terra Search demonstrated the potential of EPM 27565 to host multiple structurally controlled uranium deposits, with a total of nine being identified based on elevated radiometrics coincident with structural corridors.

What’s coming up? 

Greenvale has proposed an aggressive 2025 exploration program at Oasis, with the goal of bringing the known and extended mineralisation to JORC resource status.

This will be done in three stages:

• Geochemical testing of the entire Oasis shear
• Geochemical testing of eight priority coincident radiometric/structural anomalies; and
• Ground truthing and detailed mapping of all undercover structural splays emanating from the Lynd Mylonite zone.

The company expects this work to kick off in early June. 

This article was developed in collaboration with Greenvale Energy, a Stockhead advertiser at the time of publishing. 

This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.

Originally published as Greenvale identifies multiple NT uranium anomalies at Jindare and Henbury