- Regional VTEM survey underway at Broughton Cu-Zn project
- Approximately 2,018 line kilometres at 400m spacing across two blocks
- Program supported by $150,000 co-funding awarded under NT government program
- Survey will deliver Daly’s first modern airborne electromagnetic dataset
Daly Resources (ASX: DLY) has confirmed a regional airborne electromagnetic (VTEM) survey has commenced at its Broughton copper-zinc project in the Northern Territory.
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The program is supported by the $150,000 co-funding awarded under Round 19 of the Northern Territory government’s geophysics and drilling collaborations program.
Broughton is located approximately 600 km southeast of Darwin in the northern McArthur Basin, within the broader Carpentaria Zinc Belt.
The survey is being flown across priority copper-zinc target areas within granted exploration licences EL32992 and EL32993.
It comprises approximately 2,018 line kilometres at 400m line spacing across two priority survey blocks and will deliver Daly’s first modern airborne electromagnetic dataset over the priority target corridors at Broughton.
“We are pleased to have commenced the VTEM survey at Broughton, marking an important step in advancing this highly prospective copper-zinc project,” EC, Mike Edwards, said.
“The survey will deliver Daly’s first modern airborne electromagnetic dataset across priority target corridors in the northern McArthur Basin and is designed to test the relationship between surface copper-zinc anomalism, favourable stratigraphy and interpreted structural corridors.
“By mapping conductive stratigraphy and discrete conductive anomalies, the program is expected to materially improve our ability to define higher-confidence targets for follow-up exploration, helping us refine and prioritise where we ultimately position our drill holes.”
Mr Edwards said Daly’s exploration model at Broughton is focused on sediment-hosted copper-zinc mineralisation within the northern McArthur Basin. The model applies a hybrid petroleum-minerals systems approach, informed by sediment-hosted base metal systems such as Century in Queensland.
The model involves metal-bearing basin fluids moving through permeable stratigraphy and major structural corridors, with sulphide deposition occurring where those fluids interact with reduced sedimentary units, hydrocarbons and favourable trap sites. At Broughton, the key mineral-system components include potential metal sources within the Katherine River Group, evaporite-bearing units capable of generating basin brines, organic-rich Roper Group facies that may act as reductants and interpreted structures and fold-related traps that may have focused fluid movement.
Historical exploration has defined multiple base metal prospects and broad copper-zinc surface geochemical anomalism across the project area. Daly considers these features may represent leakage from a concealed mineral system and has prioritised areas where surface anomalism coincides with favourable stratigraphy and interpreted structural corridors.
The VTEM survey now underway is designed to test this model by mapping subsurface conductivity variations, identifying conductive stratigraphic horizons and assisting with the interpretation of major structures that may have acted as fluid pathways. Discrete conductive anomalies identified through the survey will be assessed alongside existing geological and geochemical datasets, with priority given to areas where conductive responses coincide with favourable stratigraphy, structural complexity and copper-zinc anomalism.
DLY was steady at 15.8¢ with a Mkt cap of $14.33M prior to markets opening.
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