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Drilling to Commence at Big Bell North Gold Project
HIGHLIGHTS
- Up to 4,500m aircore drilling program set to commence testing priority greenstone-splay, fault-hosted gold targets interpreted under cover at Big Bell North, along strike from the 5Moz Big Bell Mine and Garden Gully Projects in Western Australia’s world-class Murchison Gold Province.
- The Big Bell North tenements cover an extensive 337km2 area where little previous exploration has been carried out due to extensive regional soil cover and the historic lack of recognition of greenstone lithologies.
- Interpretation of recently completed aeromagnetic and gravity surveys has defined greenstone-splay fault priority drilling targets on both the eastern and western zones of the Big Bell North tenements.
- Drilling will initially focus on the Eastern Zone over a 9km north-south trend interpreted to be a faulted greenstone corridor (interpreted to be 700-1,400m wide) splaying from the regional scale Chunderloo Shear Zone. This setting is identical to the Garden Gully highgrade gold project, immediately along strike to the northeast, held by Ora Gold Ltd (OAU).
- The Eastern Zone drill targets have been further refined to align magnetic lows from the aeromagnetic survey with strong positive gravity survey responses, indicative of denser greenstones (dominated by prospective mafic rocks) in the interpreted shear zone. Shear zones associated with magnetic lows commonly coincide with quartz veining/alteration2.
- Soil sampling is also underway across the Western Zone target. Subject to results, a drilling program will follow to test bedrock targets for buried gold deposits at the Western Zone, where shallower cover exists.
- Anomalous gold results in the aircore drilling programs will be followed up with deeper RC drilling to test across the gold-anomalous structures.
Figure 1: Metals Australia - Critical Minerals and gold exploration projects in world-class mineral terranes (adapted from Geoscience Australia, Australian Mineral Deposits)
Metals Australia Ltd CEO Paul Ferguson commented:
“The drilling program we are set to commence at our highly prospective Big Bell North gold project in Western Australia’s prolific Murchison Gold Province is the latest step in the Company’s aggressive push to unlock value from our suite of gold and critical mineral projects, which are all located in wellestablished mining regions in Australia and Canada.”
Our Big Bell North project, where there has been no modern-day exploration, has advanced rapidly during 2024 on the back of a methodical, phased exploration approach from our geological team. This started with an extensive fixed wing aeromagnetic survey covering over 5,200-line km which yielded two interpreted shear zones of significance.
We followed this up with detailed gravity survey work, which revealed the likelihood of greenstones within the shear zones. This is significant because gold mineralisation within the Murchison domain is often concentrated within such greenstone belts and is structurally controlled, thus enhancing the potential of the targets we are now set to drill.
In addition to Big Bell North, we continue to advance plans for an extensive soil survey and follow-on drilling program at the Warrego East copper-gold project in the Northern Territory, which is on track to commence later this year, ahead of the wet season, once permitting and land access arrangements are finalised.
We are also awaiting results and interpretation from two other recently completed exploration programs at Warrambie in the Pilbara, where our aircore drilling program has been completed; and our Corvette River project in Quebec’s James Bay region in Canada, where assay results from the phase one field program are imminent. Exploration at Corvette River is extensively focused on gold, silver, base metals (Cu-Pb-Zn) and lithium.
At our flagship Lac Carheil high-grade flake graphite project in Quebec, positive dialogue continues as we seek to build alignment on the project’s benefits with all stakeholders. Our significant cash reserves leave us well-placed to accelerate our various exploration programs as we continue striving to unlock the true value of our suite of projects in Australia and Canada.”
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This article includes content from Metals Australia, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
Infill Soil Sampling at Dundas to Further Define Lithium Drill Targets
A number of areas of interest were identified in the previously completed regional soil sampling program, particularly on Dundas North tenements E28/3027 and E28/3028 where broad lithium in soil anomalism was identified across an area of 35km2 and up to 147ppm Li1.
HIGHLIGHTS
- Infill soil sampling program of ~500 samples to further test previously identified lithium in soil anomalism of up to 147ppm Li1
- Dundas North tenements to be tested across three large lithium targets up to 35km2, as identified in March 2023. Sampling to be completed down to granularity of 200m x 100m in some areas
- On-ground works at the Company’s Brazil lithium projects in Lithium Valley is in progress with results expected imminently
Lightning Minerals Managing Director Alex Biggs said, “It’s good to be getting back to our works at Dundas following a period of review. We are focusing on areas of interest that have been previously identified as containing lithium in soil anomalism. Our work program is focused and targeted and will allow us to identify appropriate drill targets for a future exploration program. The infill soil sampling on our Dundas North tenements is of particular interest as it allows for us to develop higher confidence drill targets across the project areas. As much as our focus is on Brazil and our accelerated exploration on those projects it is important that we further our efforts at Dundas also particularly as we have gained significant knowledge of the region since our works began there in 2022. The Company now possesses lithium exploration potential in three of the strongest jurisdictions globally for the commodity which sets us up well for success as we move forwards.”
Dundas North Infill Soil Sampling
Phase 1 soil sampling was completed during Q1 and Q2 of CY2023 with samples collected on a nominal 400m x 400m grid across the tenements, with analysis completed by LabWest Minerals Analysis (LabWest). Analysis utilised the Ultrafine + (UFF+) method with chemical analysis for a suite of 62 elements including lithium and associated pathfinders typically used for identification of lithium-caesium-tantalum (LCT) mineralisation.
The tenor of background lithium level within the project area and the Mt Belches lithological unit appears to be approximately 40-60ppm lithium. The elevated zones returning multiple samples with values above 80ppm lithium and up to a peak result of 147ppm lithium. Results are thought to provide sound vectors toward potential mineralisation as the elevations are clustered and are proximal to suitable granitic protoliths within the ‘goldilocks zone’ for LCT pegmatite mineralisation. The ‘goldilocks zone’ is typically estimated to be between 2km and 10km from the source granitic body.
This geological setting therefore requires follow up exploration works to ascertain the source of the anomalies and forms the basis of the infill soil sampling program as shown in Figure 1. Infill sampling will be completed down to a granularity of 200m x 100m.
Figure 1: Lightning Minerals - Dundas North tenure showing UFF+ lithium soil geochemistry results (as reported 01 May 2023) and planned areas of infill soil sampling as highlighted in yellow polygons on geophysical aeromagnetic analytic signal image.
Dundas South Infill Soil Sampling
Soil sampling will also be undertaken at the Dundas South project area following up zones of interest identified by the regional soil program. Grids of differing resolutions will be completed across tenements E63/2028, E63,1932, E15/1748 and E63/1993 down to a minimum of 200m x 200m. Targeting criteria in these areas focus mainly on existing results for lithium and its pathfinder elements identified during the reginal program (as reported in ASX Announcement 23 March 2023), but also aim to assess gold/nickel potential as the genetic models can share attributes regarding lithologies, geochemistry and rheology. The planned sites are shown on Figure 2 below, modifications may be undertaken in the field as guided by the supervising geologist.
Click here for the full ASX Release
This article includes content from Lightning Minerals, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
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