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Commenting on Orroroo results, Executive Chairman Ben Phillips states: “We are excited by the results of the downhole geophysical survey and cannot understate the implications this has for the potential of a greenfields discovery in the Walloway basin. Typically, sandstone uranium mineralisation is hosted in flat and planar tabular bodies close to surface, and as a consequence, the best discoveries typically occur early in the life cycle of defining a new fertile sedimentary basin. We have rapidly and successfully confirmed the potential of the Walloway via the novel approach of reviewing gamma anomalies in historical wells drilled by the oil and gas industry, and overlooked by the minerals industry. Norfolk have 100% ownership of a very large basin area in Australia’s leading uranium resource state. Norfolk has presented favourable uranium occurrences at depths potentially suitable for in-situ extraction technology. We look forward to working with our stakeholders to accelerate our exploration efforts, leveraging modern geophysics for rapid delineation of potential paleochannels followed by high-impact drilling.”
- Norfolk Metals LimitedMetals Limited succeeds in confirming uranium occurrences at three targets tested (via PFN or Spectral Gamma) in the Walloway Basin providing important proof of concept for the prospectivity of the Walloway Basin for sediment hosted uranium deposits.
- These early results are considered significant and demonstrate the potential to unlock a new uranium province in South Australia, a leading jurisdiction for the discovery and development of world-class sandstone hosted uranium deposits (e.g. Beverley, Four Mile and Honeymoon).
- The downhole geophysical survey in historical exploration wells (undertaken by Linc Energy) returned a peak uranium reading of 650ppm pU3O8 within an interval of 192ppm pU3O8 over 0.5m from 112.59m via PFN survey in well 7P3.
- Depths of confirmed uranium occurrences at 100-113m are potentially suitable for proven in-situ recovery methods1.
- Confirmed uranium occurrences are located over 5km apart with remainder of the basin untested for uranium (well 15P1 to 7P3). The Company’s previous understanding of the extent of uranium occurrences, is limited to historical drilling by Linc Energy.
- The Walloway Basin has never been explored for uranium despite being the same age as sediments of the Frome Embayment which is host to Beverley, Four Mile and Honeymoon uranium resources.
- Norfolk Metals is a first-mover in the Walloway Basin and controls 100% interest in two exploration licences covering 659 square kilometres.
- The Company plans to accelerate exploration to a campaign of geophysics and roadside drilling to rapidly follow up on these initial results and target potential roll-front style uranium mineralisation.
Figure 1. Norfolk 100% owned EL6552 and EL6814 overlayed on the Walloway Basin sediments showing the initial target area, Linc Energy historical wells and recently confirmed uranium occurrences. The legend also shows the surface footprint of three (3) resources from the Frome Embayment at the same s
Orroroo Exploration
Downhole Geophysical Survey Summary
Norfolk is pleased to report the downhole geophysical survey conducted at the Orroroo Project has been completed. Spectral Gamma and Prompt Fission Neutron (PFN) well logs recorded during the survey will be utilised for further exploration planning; however, at this stage the program is considered successful having confirmed the following;
1. Uranium occurrences in all three target zones (wells) of which the depths are potentially suitable for proven in-situ recovery methods (refer to reference 1. on page 1 of this announcement)
2. Uranium peak reported at 650ppm pU3O8 within an interval of 192ppm pU3O8 over 0.5m from 112.59m via PFN in well 7P3; and,
3. Uranium recorded from this survey at expected target depths obtained from historical holes supports the proposed “oxidised tails or interface zones” of roll-front uranium style mineralisation theory proposed by the Norfolk geology team.
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Norfolk Metals
Overview
Norfolk Metals (ASX:NFL) is an ASX-listed exploration company focused on its uranium in South Australia and Argentina. The company’s flagship property is the Orroroo uranium project in South Australia. It also holds a gold-copper project, the Roger River Property in Tasmania. Norfolk Metals is currently focused on advancing its uranium project and evaluating uranium assets for acquisition. In April 2024, the company announced it is acquiring the Las Altares uranium project in Argentina, through an exclusivity agreement with Green Shift Commodities.
Uranium prices have been on an upward trajectory since 2023, with prices rising from less than $50/lb to over $100/lb in 2024. The prices are currently hovering around $90/lb and could increase further, driven by a supply deficit. Kazatomprom, the world's largest uranium miner, announced in February 2024 that it is reducing uranium production. The company said production levels at its operations in Kazakhstan are anticipated to remain 20 percent lower, chiefly attributed to the sulfuric acid shortage prevailing in the country. Cameco, the world’s largest publicly traded uranium supplier, has provided a 2024 production guidance which is also not very bullish.
While the supply remains challenging, the demand continues to ramp up. The surge in uranium demand has been predominantly fueled by heightened utility contracting, a trend that offers robust support and sustainability to elevated price levels. The World Nuclear Association’s Nuclear Fuel Report indicates that global nuclear reactor demands are projected to almost double by 2040, rising from 65,650 tU in 2023 to 130,000 tU in 2040. According to Sprott, utilities have nearly 1.5 billion pounds of uncovered uranium requirements through 2040, compared to current annual production of around 150 Mlbs. Further, substantial underinvestment in new mining projects has exacerbated an already constrained supply side, leading to prolonged strain in the years ahead.
The uranium market appears to remain firmly in an uptrend driven by rising demand and constrained supply. Elevated prices also enhance the prospects for junior miners to progress their projects and potentially secure future supply agreements with utilities.
Norfolk Metals boasts uranium assets in a tier-1 mining jurisdiction of South Australia. The recent maiden drill program at the Orroroo project intersected a uranium-bearing floodplain, boosting confidence in the potential of the project.
Norfolk continues to review complementary projects with plans to expand its uranium project suite. In 2024, the company signed an exclusivity agreement with Green Shift Commodities (TSXV:GCOM) to acquire Las Alteras uranium project in Argentina. Las Alteras is surrounded by non-JORC foreign estimates at URAmerica’s Meseta Central deposit (19.1 Mlbs U308), CNEA’s Cerro Solo deposit (11.49 Mlbs U308), ISO Energy’s Laguna Salada deposit (10.1 Mlbs U308), along with the Cerro Condor and Los Adobes historical uranium mines.
Company Highlights
- Norfolk Metals is an ASX-listed uranium-focused explorer with assets located in South Australia (Orroroo uranium project), Argentina (Las Alteras uranium project) and Tasmania (Roger River gold/copper project).
- The primary focus is on advancing the Orroroo uranium project located in the Walloway Basin in South Australia. Orroroo comprises three granted exploration licenses, which together cover 723 square kilometres. of contiguous tenements. The land holding is divided into three project areas named Orroroo, Johnburgh and Black Rock.
- Orroroo has geological similarities to well-endowed South Australian uranium producers such as Boss Energy’s Honeymoon Uranium project and Heathgate Resources’ Four Mile mine.
- Norfolk completed a maiden drill program at Orroroo which delineated uranium in 10 of the 17 holes with grades reaching as high as 796 ppm. The maiden drill program also identified a uranium-bearing floodplain 50 meters south of the Wongway Creek Target.
- In Argentina, Norfolk has signed an exclusivity agreement with Green Shift Commodities to acquire Las Alteres uranium project, a project surrounded by multiple uranium deposits and historical mines in every direction including the Cerro Solo government owned deposit
- The Roger River Project comprises two granted exploration licenses, which together cover 261 square kilometers, located in Tasmania. The project is prospective for gold and copper.
- Norfolk is evaluating other projects for acquisition, which includes complementary projects to the South Australian uranium project suite.
- Uranium prices are likely to remain firm on the back of supply deficit. Kazakhstan, the world’s largest uranium supplier, has warned of lower production in 2024, while demand continues to remain high as governments around the world embrace nuclear power to reduce reliance on fossil fuels.
Key Projects
Orroroo Uranium Project
The Orroroo uranium project consists of three exploration licenses - EL6552, EL6814, and EL6948 - spanning a total of 723 square kilometers, situated roughly 274 kilometers northwest of Adelaide, South Australia. The large land holding is divided into three project areas named Orroroo, Johnburgh and Black Rock.
Orroroo lies within the Walloway Basin, an underexplored uranium region characterized by sediments of similar age to those found in the nearby Frome Embayment, where Boss Energy’s Honeymoon project is located.
Norfolk Metals completed a two-phase drilling program at Orroroo Project (EL6552), identifying uranium in 10 of 17 holes with grades reaching as high as 796 parts per million (ppm). Phase 2 of the drill program also identified a uranium-bearing floodplain 50 meters south of the Wongway Creek Target. The confirmation of uranium-bearing floodplain deposits upstream of Wongway Creek has strengthened confidence in the paleochannel model. Crucial drill holes, including ORMR015A and ORMR017, have offered valuable insights into floodplain features and the identification of kaolinitic clay marker beds, crucial for unraveling the basin’s geological evolution.
Drill samples from ORMR015A showing the kaolonitic clay marker unit from 121-130 metres and floodplain silt from 130-137 metres.
ORMR015A intersected what seems to be a floodplain dominated by silt, with minor gravel and two elevated gamma anomalies indicating uranium at both the top and bottom of this unit. In ORMR017, there was a heightened gamma response at approximately 132 meters depth, aligning with the top of the floodplain identified in ORMR015A. This suggests that the paleochannel may be situated just meters away from the target. Additionally, the detection of a mustard-colored limonite-rich fluid in certain drilling locations suggests potential uranium sources.
The identification of paleochannels offers geologists precise targets for uranium exploration. By mapping geological characteristics and comprehending past river systems, exploration endeavors can be concentrated on regions with an increased probability of harboring uranium deposits.
The maiden drill program has further substantiated Orroroo as a potential emerging uranium district within the renowned Walloway Basin in South Australia. Norfolk is moving forward on the future planning and approvals for Orroroo with a focus on the uranium-bearing floodplains intersected near the Wongway Creek target.
In 2024, Norfolk will begin operations on exploration permit EL6814, which is adjacent to the north and south of EL6552. The initial activities on EL6814 will be planned based on the findings and analysis from the inaugural drilling program at EL6552.
The company remains optimistic about the potential of the Walloway Basin beyond EL6552 (Orroroo project), particularly in areas such as the northern region (Johnburgh Project) and the southern region (Black Rock Project), where significant portions have yet to undergo geophysical surveys or drilling operations.
Las Alteras Uranium Project
Through an exclusivity agreement with Green Shift Commodities (GCOM) Norfolk has rights to 22 claims totaling 60,396 hectares comprising the Las Alteras uranium project to the west and east of the 11.49M lbs (Reasonably Assured Resource) Cerro Solo uranium deposit.
Las Alteras is surrounded by UrAmerica’s Meseta Central deposit (19.1 Mlbs eU308), CNEA’s Cerre Solo deposit (11.49M lbs U308), and ISO Energy’s Laguna Salada deposit (10.1 Mlbs U308). The project is also close to two historical mines, Cerro Condor and Los Adobes.
Norfolk plans to complete a due diligence on the project and pursue completion of the acquisition of the property from Green Shift Commodities.
Roger River Project
The Roger River Project comprises two granted exploration licenses encompassing a total area of 261 square kilometres. Positioned 410 kilometres northwest of Hobart, Tasmania, the project is deemed prospective for gold and copper.
During 2023, Norfolk continued its exploration program to obtain a better understanding of the copper and gold mineralization to guide the next exploration phase and potential drilling. The exploration work included a soil sampling program. The soil program entailed the collection of new surface samples and the re-analyses of selected historical soil samples over the White Water and A2 prospects which were submitted for Cu analysis.
Fresh surface samples were gathered on a grid measuring 200 by 100 meters around A2, totaling 98 samples. This sampling covered an area of roughly 1.2 kilometers by 1.5 kilometers along the interpreted splay from the Roger River Fault. The findings reveal a persistent copper anomaly surrounding the A4 and A5 prospects, situated along the interpreted fault splay originating from the Roger River Fault.
The historical samples re-analyzed revealed a continuous copper anomaly around the A4 and A5 prospects located along the interpreted fault splay from the Roger River Fault.
Management Team
Ben Phillips – Executive Chairman
Ben Phillips brings over 15 years of experience in commercial negotiations across diverse industries, including oil and gas, resources, medical technology, software-as-a-service and defense. He guides departments spanning from R&D and exploration to production, commercialization, and sales. Previously, Phillips served as a non-executive director at Bronson Group (ASX:BGR) and later at Mandrake Resources (ASX:MAN). In his current role as a corporate executive at Ironside, he focuses on sourcing, structuring, funding and managing requirements for small-cap companies, both private and public. Phillips has been with Ironside Capital since its inception, previously serving at Merchant Corporate Finance.
Leo Pilapil – Non-Executive Technical Director
Leo Pilapil has over 30 years of experience as a geoscientist. Throughout his career, he has held director positions at numerous junior companies across Australia, Africa and Turkey. In these roles, he has been primarily responsible for technical project evaluations, project acquisitions, project management and business development. Pilapil's notable achievements include the discovery of the Harlequin Gold Deposit (1 Moz) under salt lake conditions in Norseman, Western Australia. Additionally, he has played a key role in the extension and discovery of several ore deposits in Australia, Africa and Turkey. Pilapil has served as a geological consultant for numerous companies across the globe, including Aditya Birla in Australia, Alacer Gold Corporation in Turkey, African Uranium in Namibia, and NIKKI Lao in Lao PDR.
Patrick Holywell – Non-Executive Director
Patrick Holywell possesses over 15 years of expertise in accounting, finance and corporate governance, having worked at Deloitte and Patersons (now Canaccord Genuity). He is a chartered accountant and a fellow of the Governance Institute of Australia. Over the past decade, Holywell has primarily focused on director and company secretarial roles within the resources and technology sectors. His recent engagements include positions at De Grey Mining, Si6 Metals, and Pentanet.
Octava to Commence Drilling at Yallalong High-Grade Antimony Project
Highlights
- Drill rig relocating to site with drilling to commence this weekend.
- The 3000m reverse circulation (RC) drill program is targeting further high-grade antimony at the Discovery prospect.
- Historic drilling at Discovery recorded high-grade antimony intercepts over a strike length of ~300m and remains open. Results include:
- YRC16: 7m @ 3.27% Sb from 12m including 1m @ 11.5% from 18m
- YRC06: 3m @ 6.83% Sb from 21m including 1m @ 13.6% Sb from 22m
- After drilling at Discovery, the drill rig will relocate to the Central antimony target, 2km north along strike. There has been no previous drilling at Central.
- A detailed geophysical survey over the antimony corridor at Yallalong is now complete, with the data being processed. This is expected to generate further targets within the antimony corridor.
Octava’s Managing Director Bevan Wakelam stated, "It’s great to have the rig heading to site and earlier than we had planned. The drilling will start on Discovery, then move to the Central target and should take about 2 weeks to complete. High-grade antimony has already been intersected at Discovery over a significant strike length and this drilling will further test the size. We will also twin some of the previously drilled holes."
Figure 1. Planned drill hole locations at the Discovery antimony target - Yallalong Antimony Project.
The antimony (Sb) mineralisation identified at Yallalong appears within a 10km north-south striking mineralised corridor that is interpreted to be related to a structural belt between the regional scale Darling and Woodrarung faults. Previous exploration identified four principal antimony targets where antimony mineralisation was exposed at surface. Only the Discovery Prospect has any drilling and remains open. Antimony ingot prices at that time were ~$8000/tonne compared to over $30,000/tonne now1.
Figure 2. Antimony targets at Yallalong antimony project with underlying geology.
Drilling at Discovery target recorded some of the highest-grade antimony drill intersections in Australia, at shallow depth, over a strike of ~300m including:
- YRC16: 7m @ 3.27% Sb from 12m including 1m @ 11.5% from 18m
- YRC06: 3m @ 6.83% Sb from 21m including 1m @ 13.6% Sb from 22m
- YRC27: 6m @ 1.35% Sb from 13m
After drilling at the Discovery target is complete, the rig will then move to the Central target, which is located 2 kilometres north along strike. There has been no previous drilling at the Central target.
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This article includes content from Octava Minerals Limited, 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.
Targeted Exploration Focus Delivers an Additional 471koz or 99% Increase in Ounces, and a Higher Grade for Ricciardo
HIGHLIGHTS:
- Updated Mineral Resource Estimate (MRE) for the Ricciardo Deposit (part of the broader Golden Range Project) of 16.44 Mt @ 1.8 g/t Au for 947.5 koz gold.
- Represents a 99% increase in Ricciardo MRE contained gold ounces.
- Proven high-returning exploration with the increased Ricciardo MRE ounces delivered at an attractive all-in discovery cost of only approx. A$16/oz.
- High-quality resource additions given drilling focus on high-grade growth ounces with strong commercial potential.
- The updated Ricciardo MRE comprises:
- 467.5 koz @ 1.6 g/t Au open-pit gold Resource (75% M&I) (optimised pit shell constrained at A$3,300/oz)
- 480.0 koz @ 2.0 g/t Au underground gold Resource
- Critically, the Ricciardo system remains wide open at depth and along strike.
- Total Golden Range Project Mineral Resources now stand at over 1.28 Moz gold, a 58% increase from the previous level.
- This initial outcome validates the excellent potential for further growth within the broader 25km ‘Golden Corridor’ via the ongoing, simple strategy of targeting fresh rock extensions under shallow existing pits.
- RC drilling at the southern end of the ‘Golden Corridor’ targeting high-grade Resource growth is progressing well; 9 holes completed for 1,472 metres to date, assays pending.
Warriedar Managing Director and CEO, Amanda Buckingham, commented:
“This is the result we have been working towards all year. With less than 15,000m of targeted, efficient drilling we have added over 470 koz to the Ricciardo deposit, doubling the Resource.
We are excited by both the outcome itself, and the outlook that it delivers us for the wider corridor of gold deposits. The simple strategy of drilling below shallow open pits to find mineable ounces worked exceptionally well for our producing neighbours. The validity of this strategy is now beyond doubt, for us.
Not only is the Ricciardo system still wide open down-plunge, but the entire 25km long ‘Golden Corridor’ offers similar potential upside from such a relatively simple drilling focus.
In the middle of the infrastructure-rich southern Murchison, and located on existing Mining Leases, the opportunity in front of us is utterly irresistible.”
The Ricciardo Deposit
The Ricciardo Gold Deposit is located on existing mining leases 100% owned by WA8, in the Murchison Region, approximately 300 km east of Geraldton, and 420 km by road north-northeast of Perth. Sitting approximately 8km South of the Golden Range Mill on M59/421, and M59/458, within the Golden Range group of historic open pit mines and deposits.
Discovered in the 1990’s, open pit mining of the oxide resources commenced in 2001, and the plant entered Care & Maintenance twice (between July 2004 and 2009, and May 2010 to mid- 2013). Production was over 300 Koz before finally going into ongoing Care and Maintenance in August 2019.
The Ricciardo deposit is located 90km north of Capricorn Metals’ Mt Gibson Gold Project, 8kms south of the Company’s plant, 26km from the neighbouring Golden Grove processing facility and 40 km northeast of Vault Minerals’ high grade Rothsay gold mine (Figure 1).
Figure 1: The location of the Ricciardo gold deposit within the Golden Range Project; within the broader Southern Murchison region.
The Ricciardo gold system spans a strike length of approximately 2.3km, with very limited drilling having been undertaken below 100m depth prior to Warriedar drilling. Historical mining operations at Ricciardo were primarily focused on oxide material, with the transition and primary sulphides mineralisation not systematically explored.
Warriedar’s drilling of Ricciardo during CY2024 achieved excellent results, demonstrating high- grade extensions to the resource. The results demonstrated that the previously quantified resource is part of a much larger system.
Warriedar engaged independent mining consultants, Measured Group to update the Ricciardo MRE, previously reported 476Koz gold.1
The Ricciardo Gold Deposit consists of six semi-continuous historical open pit mines along the 2.3 km arcuate stretch of the Mougooderra Shear Zone, running north to south. These mines are named (from north to south) Silverstone North, Ardmore, Copse, Silverstone, Silverstone South, and Eastern Creek (Figure 2).
Figure 2: Drilling carried out by the Company during 2023 & 2024, which was used to update the MRE.
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This article includes content from Warriedar Resources Limited, 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.
Drilling Preparations at Abercromby Gold Project
BMG Resources Limited (ASX: BMG) (BMG or the Company) is pleased to announce that preparations to resume drilling at its 100%-owned Abercromby Gold Project are well advanced with the start of drilling scheduled for this month.
- Diamond drill programme focused on resource growth is scheduled to commence this month at the Abercromby Gold Project
- Extensional drilling of high-grade zones is planned with potential to add significantly to BMG's maiden resource of 518,000 oz Au at 1.45 g/t Au
- Infill drilling planned to convert inferred resources to the indicated category to support development studies
- Programme of Work approval in place
- Programme of Work approval in place
John Prineas, BMG's Non-Executive Chairman, said:
"Following the support shown by investors in the recent capital raising, the team at BMG have moved quickly to finalise arrangements to resume drilling at the Abercromby Gold Project.
"The drill programme will focus on expanding high-grade gold zones beyond the existing resource shell, as well as increasing resource confidence by upgrading inferred resources to indicated status.
"The results of the drilling have potential to contribute significantly to resource growth at Abercromby, and to ..iaterially boost the potential project economics."
Drilling for growth in gold resources:
BMG delivered the large maiden Mineral Resource at Abercromby after completion of only three drill campaigns and at a discovery cost of just $8.35 per ounce. This achievement highlights the extensive gold endowment at Abercromby, as well as the efficient exploration planning by our technical team.
This excellent track record of results at Abercromby provides confidence in the potential for continued drilling success at Abercromby that could increase the size of the gold resource.
The Abercromby Gold Project is owned 100% by BMG and comprised within two granted Mining Leases. The Project is located in an established mining region with access to infrastructure (roads, power) and proximal to a number pf producing gold mines.
The favourable metallurgical properties of the Abercromby ore were confirmed by metallurgical testwork completed by Extreme Metallurgy and reviewed by GR Engineering Services. That testwork concluded that the Abercromby gold mineralisation was free milling in nature and amenable to traditional carbon-in-leach processing. High gold recoveries were achieved in the range 93% to 95%.
Maiden Resource is just the beginning:
The maiden MRE for Abercromby is comprised in the Capital Deposit and is defined as 11.12Mt @ 1.45 g/t Au for 518,000 oz Au. This resource is a subset of a global resource estimate containing about 670,000 oz Au at a Og/t Au lower cut-off.
The Capital Deposit remains open at depth and along strike — both to the north and south. A diamond drilling program is planned to commence this month to test for extensions of the mineralisation as well as to convert inferred resources to the indicated category.
The prospective stratigraphy at Abercromby extends for more than 6km with only a strike of 1.2km systematically drilled to date. This provides potential for substantial discovery opportunities with further exploration drilling.
Drilling is also planned for early next year to test regional targets to the south of the Capital Deposit.
Reconnaissance aircore drilling at the Capital South, Archer and Barrack Prospects — located along a 1km corridor of prospective stratigraphy to the south of the Capital Deposit — has confirmed the presence of a large high-grade gold system and supports the potential for a repetition of significant mineralisation like the Capital Deposit.
Table 1: JORC-compliant Mineral Resource for Abercromby.
A further announcement will be issued by BMG once drilling commences at Abercromby.
For further information on the Abercromby resource, see our ASX announcement dated 6 February 2023 'High Gold Recoveries — Abercromby Met Testwork' and 17 April 2023 '518,000oz Au Maiden Mineral Resource for Abercromby Gold Project'.
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This article includes content from BMG Resources Limited (ASX: BMG), 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.
Octava Secures Drilling Contractor for the High-Grade Antimony Project at Yallalong
Highlights
- Octava has now completed the selection process for a drilling contractor to conduct exploration at its 100% owned high-grade Yallalong antimony project in the Midwest of Western Australia.
- A 3000m drilling program is expected to commence by the end of this month and will focus on the Discovery target, where previous high-grade intercepts have been recorded including:
- YRC16: 7m @ 3.27% Sb from 12m including 1m @ 11.5% from 18m
- YRC06: 3m @ 6.83% Sb from 21m including 1m @ 13.6% Sb from 22m
- Maiden drill holes will also be completed on the Central antimony target, where no previous drilling has been done.
- Detailed geophysical survey over the identified antimony corridor at Yallalong is progressing well, now 40% complete.
- The geophysical survey will assist in defining additional antimony targets within the corridor, that may be transported cover.
Octava’s Managing Director Bevan Wakelam stated, "We are really pleased to have secured our drillers to undertake the exploration drill program to outline further high-grade antimony at Yallalong. We will target lateral extensions of existing, known high grade antimony mineralisation and also the underlying bedrock contacts. We also look forward to completing the geophysical survey that will provide us with better geological understanding of what’s below the surface along the antimony corridor.”
Figure 1. Cross-section through the Discovery antimony target showing mineralisation occurring parallel to the sedimentary and mafic rock contact and in the fault zone. (refer ASX announcement 17 September 2024)The antimony (Sb) mineralisation identified at Yallalong appears to occur within a 10km north-south striking mineralised corridor that is interpreted to be related to a structural corridor between the Darling and Woodrarung faults. The fault zones act as conduits for mineralising fluids into the sedimentary rocks that are peripheral to mafic intrusive dykes, a well-known geological setting for antimony deposits worldwide.
Octava is planning to drill two of the priority antimony targets at the Yallalong antimony Project, Discovery and Central. Previous exploration identified four principal antimony targets where antimony mineralisation was exposed at surface at all target locations. Only the Discovery Prospect has any drilling and remains open. Antimony ingot prices at that time were ~$8000/tonne compared to over $30,000/tonne now1. Drilling is expected to commence at the end of this month.
The detailed geophysical surveys are progressing well, now at 40% and on track to be completed in the next 7-10 days. The survey will provide clearer understanding on these key structures, such as shears & faults and provide better definition of controlling lithological boundaries.
Figure 2. Progress map of Detailed Geophysical Survey at Yallalong antimony Project.
Figure 3. Geophysical Survey in progress at the Yallalong antimony project.
This announcement has been authorised for release by the Managing Director/CEO.
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This article includes content from Octava Minerals Limited, 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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