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True North Copper Limited (ASX:TNC) (True North, TNC or the Company) is pleased to announce it has intersected exceptional visual copper mineralisation in the final two drillholes of the Company’s initial diamond drilling program at the 100% owned Vero copper-silver-cobalt resource at its Mt Oxide Project, Queensland.
HIGHLIGHTS
- Holes MOXD225 and MOXD226A both intercepted wide zones with high visual estimates of copper sulphide mineralisation.
- MOXD225include:
- 18.33m* from 259.67m with vis. est. of 3-4% chalcocite, 1% covellite, 0.5% chalcopyrite and 4% pyrite
- 57.33m* from 349.87m consisting of three visually strong mineralised sub domains (Figure 1).
- 7.48m* from 349.87m with vis. est. 5% chalcocite, 2% covellite, 1-2% chalcopyrite and 8% pyrite
- 8.65m* from 357.35m with vis. est. 2% chalcocite, 0.5% covellite, 0.5% chalcopyrite and 8% pyrite
- 41.20m* from 366.00m with vis. est. 2-3% chalcopyrite, 0.5% chalcocite, 9% pyrite and trace covellite
- MOXD226A include:
- 70.75m* from 224.55m consisting of four sub domains highlights (Table 1) include:
- 19.60m* from 224.55m with vis. est. of 2-3% chalcocite, 0.3% covellite and 6% pyrite
- 21.15m* from 244.15m with vis. est. of 1-2% chalcopyrite, 1% bornite, 0.5% chalcocite, 0.5% covellite and 4% pyrite
- 18.95m* from 276.35m with vis. est. of 2% chalcocite, 2% covellite, and 13% pyrite
- 8.15m* from 343.15m with vis. est. 4% chalcocite, 1% covellite, 1-2% pyrite
- 70.75m* from 224.55m consisting of four sub domains highlights (Table 1) include:
- Vero Resource next steps:
- Q4 2023 – Assay results for the remaining Vero Resource drillholes are expected November 2023.
- Q1 2024 Re-estimation of Vero Resource.
COMMENT
True North Copper Managing Director, Marty Costello said:
“We are incredibly excited by these stunning intercepts of visual copper mineralisation and associated drillcore data.
Our drilling program continues to confirm the phenomenal mineralisation of the Vero Resource and is providing substantial insight into zonation and what we believe to be the principal feeder system of the Vero Resource.
We look forward to updating the market in November on the remaining assay results from the Vero Resource drilling program and we remain on track to deliver an updated Mineral Resource Estimate for the Vero Resource in Q1 2024.”
Figure 1. Strong chalcocite (silver grey to black mineral) vein and vein breccia mineralisation in MOXD225 at approximately 352.90m.
Visual Estimates Summary
Drillholes MOXD225 and MOXD226A represent the culmination of TNC’s highly successful resource infill and extension drill program at its 100% owned Vero copper-silver-cobalt resource (Figures 2 & 3). Both drillholes successfully intercepted extensions to the high-grade mineralisation in TNC’s first drillhole MOXD217 that returned 66.50m* (48.00m ETW) @ 4.95% Cu, 32.7 g/t Ag and 685 ppm Co from 234.00m downhole1.
Figure 2. Location of Mt Oxide Project Mt Isa Inlier, Queensland.
Figure 3. Plan view showing the collar location and drill trace of MOXD217-MOXD226A. Copper Block model displayed at > 0.2% Cu. Resource Cutoffs – Vero Copper 0.5% Cu and Vero Cobalt 0.1% Co. TNC intercepts for MOXD217, MOXD218, MOXD219, MOXD221 previously released.
MOXD225
MOXD225 targeted a 25m northern extension of MOXD217, and further downhole a 20m strike extension to high-grade mineralisation in historic hole MOXD089. Highlights from MOXD225 include (Table 1 & Figure 4):
- 18.33m* from 259.67m with vis. est. of 3-4% chalcocite, 1% covellite, 0.5% chalcopyrite and 4% pyrite
- 57.33m* from 349.87m consisting of three visually strong mineralised sub domains
- 7.48m* from 349.87m with vis. est. 5% chalcocite, 2% covellite, 1-2% chalcopyrite and 8% pyrite (Figures 1 & 6)
- 8.65m* from 357.35m with vis. est. 2% chalcocite, 0.5% covellite, 0.5% chalcopyrite and 8% pyrite
- 41.20m* from 366.00m with vis. est. 2-3% chalcopyrite, 0.5% chalcocite, 9% pyrite and trace covellite
25m north of MOXD217, MOXD225 intersected an 18.33m* interval between 259.67m and 278.00m of brecciated sediments with variably developed, sulphide fill, crackle, and mosaic breccias. Sulphides transition with depth from chalcocite (3-4%), to covellite (1%), then chalcopyrite (0.5%) – pyrite (4%). From 278.00m brecciation and mineralisation intensity decreases with moderately developed, pyrite rich (5-15%) crackle brecciation and variable quantities of chalcocite (trace-3%) and chalcopyrite (trace-1%) (Table 1).
At the base of the resource, MOXD225 intercepted a 57.33m* interval of copper mineralisation comprising of three sub domains with varying proportions of chalcocite, covellite, chalcopyrite and pyrite (Table 1 & Figure 4). This interval extends the high-grade mineralisation intercepted in MOXD089 (22m* @ 6.3%Cu & 0.31% Co from 258m3) 20m to the south.
MOXD226A
MOXD226A targeted 25m south of MOXD217, and 30m down dip of historic hole S200 drilled by Gunpowder Copper in the late 1960’s early 1970’s. Highlight intercepts from MOXD226A include (Table 1 & Figure 5):
- 70.75m* from 224.55m consisting of four sub domains highlights (Table 1) include:
- 19.60m* from 224.55m with vis. est. of 2-3% chalcocite, 0.3% covellite and 6% pyrite
- 21.15m from 244.15m with vis. est. of 1-2% chalcopyrite, 1% bornite, 0.5% chalcocite, 0.5% covellite and 4% pyrite
- 18.95m* from 276.35m with vis. est. of 2% chalcocite, 2% covellite, and 13% pyrite (Figure 7)
- 8.15m* from 343.15m with vis. est. 4% chalcocite, 1% covellite, 1-2% pyrite
At 224.55m MOXD226A intercepted a 70.75m* interval of crackle brecciation, vein breccias and disseminated copper mineralisation, 25m south of MOXD217 and 30m down dip of S200. Visual estimates of copper mineral percentages vary over the interval and copper mineralogy transitions through chalcocite à chalcocite-covellite àchalcopyrite-pyrite back to chalcocite-covellite over the interval.
At final target depth, the hole intercepted a 45.58m* interval of copper-pyrite mineralisation, confirming mineralisation 15m up dip from historic hole MOXD105.4 The upper 8.15m* of the interval is strongly brecciated with sulphide fill including chalcocite (4%) and covellite (1%). From 351.30 brecciation intensity decreases and copper minerals transition to chalcopyrite dominant (1%) with high visual estimates of pyrite (10%).
Click here for the full ASX Release
This article includes content from True North Copper, 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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True North Copper
Overview
True North Copper (ASX:TNC) is a responsible explorer, developer and producer of critical minerals.
Based in a tier-one mining jurisdiction (North Queensland, Australia), TNC is focused primarily on copper and cobalt, with its most significant projects – Mt Oxide and Cloncurry – located within the Mt Isa Inlier region, home to several world-class critical minerals projects.
The company’s global measured, indicated and inferred resources contain: 336,200 tonnes copper, 21,890 tonnes cobalt, 88,000 oz gold, 4.31 million ounces (Moz) silver.
TNC commenced trading on the Australian Stock Exchange mid-June 2023, following a reverse takeover merger with exploration company Duke Exploration in February 2023.
Company Highlights
- Tier 1 jurisdiction, Queensland-based copper and cobalt exploration and development company with a global measured, indicated and inferred resource containing: 336.2 kt copper, 21.89 kt cobalt, 88 koz gold, 4.31 Moz silver. Key projects located within Australia's Mt Isa Inlier region, home to some of the country's most well-known mining projects.
- Mt Oxide and Cloncurry Projects benefit from low capex, low-cost production.
- Cloncurry Project - producing copper sulphate, with a projected production of 10,000 to 15,000 tonnes per annum over a 10-year mine life. Exclusive offtake agreement for all Cloncurry-produced copper sulphate with Kanins International. Prices set at LME rate plus a premium.
- The company has signed a binding offtake agreement with Glencore for 100 percent of copper concentrate from the Cloncurry Copper Project.
- Mining restart studies for the Great Australia Mine finalised - Q3 2023. Mining recommencement decision - Q4 2023.
- Great Australia Mine drilling and exploration program - extended structurally controlled, down-dip feeder to mineralisation located beneath the GAM Pit, with notable intersections of copper mineralisation. IP survey conducted over the Greater Australian Target identified four high-order IP chargeability anomalies, with compelling targets for future drill testing.
- Mt Oxide Project’s Vero Resource contains 15.98 Mt at 1.43 percent copper and 6.91 g/t silver combined measured, indicated and inferred resource, and a separate 9.15 Mt at .23 percent cobalt total combined measured, indicated and inferred resource.
- First hole of an initial diamond drilling program at Vero Resource intersected 66.5 meters at 4.95 percent copper. Assay results returning throughout Q3 2023.
- Strong ESG focus across all operational elements including:
- Hitachi Vantara partnership to improve transparency and data capture while realising business savings through artificial intelligence.
- Leveraging the Queensland government's Powerlink-led CopperString 2032 project, which is situated less than 5 kilometres from the Cloncurry project. Rehabilitated TNC mining landforms are being transformed into renewable solar energy sources and will feed into the CopperString network.
Image 1: Visual representation of Mt Oxide Project and Cloncurry Project tenements and resources summary
Projects
Mt Oxide Project
Mt Oxide Project is a highly prospective and underexplored asset, featuring significantly sized, high-grade copper with cobalt and silver mineralisation.
Mt Oxide hosts extensive corridors, including the 11-kilometre copper-cobalt-lead-zinc Mt Oxide corridor and the 8-kilometre lead-zinc (copper-cobalt) Big Oxide corridor. Both corridors offer multiple targets for resource expansion. Additionally, the project has considerable development potential, with a long-strike in both directions and resources open-to-depth.
The Vero Resource forms part of the Mt Oxide Project. It is strongly analogous to 29 Metals' (ASX:29M) Capricorn Copper deposit, which comprises 62.2 million tonnes (Mt) at 1.8 percent copper and 9 grams per tonne (g/t) silver.
Mt Oxide Highlights:
- Significant Reserves: Mt Oxide's mineral reserves include 228,180 tonnes of copper, 21,200 tonnes of cobalt and 4.26 Moz of silver.
- Extensive Historical Drilling: The Vero Resource has undergone more than 110,000 metres of historical drilling which has helped TNC confirm its prospectivity and potential with a high degree of confidence.
- Promising High-grade Mineralisation: The Vero Resource is among the most promising targets within Mt Oxide, with 15.98 Mt at 1.43 percent copper, 6.91 g/t silver and 9.15 Mt at 0.23 percent cobalt. Over 75 percent of Vero is in JORC 2012 indicated status or better.
- Pre-existing Infrastructure: Mt Oxide benefits from the presence of an existing exploration camp as well as proximity to the Capricorn Copper Mine's processing plant and power grid.
- Vero Resource Drill Results (see Tables 1 & 2 and Image 2): The first drill hole of an initial diamond drilling program returned exceptional results, including:
- 66.50 metres at 4.95 percent copper, 32.7 g/t gold and 685 parts per million (ppm) cobalt from 234 metres, including:
- 20.60 metres at 10.51 percent copper, 63 g/t gold and 1,149 ppm cobalt from 234.60 metres.
- 8.55 metres at 6.03 percent copper, 51.6 g/t gold and 98 ppm cobalt from 290.15 metres
- 11 metres at 3.06 percent copper, 34.2 g/t gold and 682 ppm cobalt from 357.50 metres, including:
- 4 metres at 6 percent copper, 63.7 g/t gold and 544 ppm cobalt from 357.50 metres.
- 8.55 metres at 6.16 percent copper, 45.9 g/t gold and 140 ppm cobalt from 172.50 metres including:
- 2.80 metres at 14.74 percent copper, 102.5 g/t gold and 54 ppm cobalt from 178.25 metres.
- 66.50 metres at 4.95 percent copper, 32.7 g/t gold and 685 parts per million (ppm) cobalt from 234 metres, including:
Table 1: MOXD217 significant copper, silver and cobalt geological intercept.
Table 2: MOXD217 significant copper, silver and cobalt intercepts at a 3 percent copper cutoff with 2-metre internal dilution.
Image 2: Cross-section of MOXD217 (10 m clipping window) showing the location of geological and grade composites as well as the updated interpretation of copper grade domains based on the results from MOXD217
Cloncurry Project
Project Highlights:
- Fully Permitted: The Great Australia Mine is permitted for compliant, sustainable copper oxide and sulphide production (see Image 3).
- Extensive Mineral Reserves: Roughly 90 percent of the Cloncurry Project's 2012 JORC defined resources are situated on granted mining leases for which TNC has all necessary approvals in place. project's global JORC 2012 compliant resources include 79,040 tonnes of copper, 47,720 oz of gold and 1,860 tonnes of cobalt.
- Mining restart: Mining restart studies for the Great Australia Mine finalised - Q3 2023. Mining recommencement decision - Q4 2023.
- Great Australia Mine drilling and exploration: Great Australia Mine drilling and exploration program - extended structurally controlled, down-dip feeder to mineralisation located beneath the GAM Pit, with notable intersections of copper mineralisation. IP survey conducted over the Greater Australian Target identified four high-order IP chargeability anomalies, with compelling targets for future drill testing.
- Multiple Exploration Targets: High-quality exploration targets on granted mining leases within Cloncurry Project include:
- Wallace Complex: An undeveloped project within trucking distance to the Great Australia Mine, significant exploration potential and multiple high-grade intersections, including:
- 12.7 metres at 3.47 percent copper and 1.82 g/t gold from 37.3 metres.
- 15.9 metres at 2.45 percent copper and 1.98 g/t gold from 68.1 metres.
- 19 metres at 2.09 percent copper and 0.74 g/t gold from 29 metres.
- Notlor: An advanced exploration prospect with significant copper intersections along a 2-kilometre trend approximately 9 kilometres from the Great Australia Mine Complex.
- Mt Norma: A deposit located 40 kilometres by road from the Great Australia Mine Complex. Its total combined inferred and indicated resources are 158,000 tonnes at 1.89 percent copper comprising 91,000 tonnes at 1.76 percent copper and 15.46 g/t silver in situ material. There is also a separate resource of 67,000 tonnes at 2.08 percent copper for out-of-ground heap leach pad and stockpiled material.
- Wallace Complex: An undeveloped project within trucking distance to the Great Australia Mine, significant exploration potential and multiple high-grade intersections, including:
- Infrastructure and adjacent community: Cloncurry is located in close proximity to the Cloncurry township. It also benefits from rail connectivity, sealed roads and affordable grid power.
- Guaranteed Concentrate Sales: TNC signed a binding offtake and a toll-milling agreement with Glencore International for 100 percent of copper concentrate from CCP, and toll-milling services up to 1 million tons of ore per year for the CCP’s life of mine. TNC will be entitled to claim 20 percent Queensland State Royalty discount for all material processed through the Mt Isa Smelter.
Image 3: Visual representation of Great Australia Mine complex resources and processing facilities.
Image 4: Cross Sections X-X' through the 3D IP Chargeability Model showing the high-order chargeability anomaly associated with the Taipan Resource and new anomalies identified in the Greater Australian Target Area
Management Team
Marty Costello - Managing Director
Marty Costello is recognised as one of Australia’s leading project development and sustainability strategists across the resource sector, with more than 20 years of professional experience.
After working for several companies and government departments (domestic and international) managing, developing and implementing environment, sustainability and risk (ESR) programs and policies he established his own environmental consultancy – Northern Resource Consultants (NRC).
In the space of nine years, Costello developed NRC into an industry specialist with more than 25 employees focusing on environmental management and sustainability solutions for the resource sector. NRC delivered agile, best practice ESR strategies and multi-disciplinary environmental and sustainability services for clients like Evolution Mining, Futura, Sojitz, Adani, Red River Resources, CU River Mining, and others.
In 2018, NRC was acquired by SLR, a global leader in environmental and sustainability solutions. The acquisition facilitated considerable additional capability and geographic coverage to SLR’s existing mining and minerals in Asia Pacific business. During his consulting life, Costello was retained by Evolution Mining over an eight-year period to provide strategic project development, ESG advice to the board and executive management team.
Costello holds a Bachelor of Applied Science (environmental management) and Diploma of Applied Science.
Peter Brown - Chief Operating Officer
Peter Brown has held senior management roles in the resources sector, both domestically and internationally, including recent positions at Round Oak Minerals and Diatreme Resources where he oversaw project development and operations. Brown has diverse experience and an impressive track record that demonstrates his ability to successfully deliver projects and foster positive relationships with all project stakeholders.
He has managed discovery programs for gold, copper and chromite in South America, Japan, Vietnam and Indonesia, including government and community relations. He also drove improvements and provided training in mine geology, resource evaluation and mine technical services at prominent mines such as Mt Muro Gold Mine, George Fisher Mine and Peak Gold Mines. Additionally, Brown played a significant role in reviving abandoned satellite projects at Peak Gold Mines.
Other achievements include successfully re-permitting and constructing of the 1-Moz Toka Tindung Gold Mine in Indonesia as director of Indonesian companies and general manager at Archipelago Resources; leading the permitting, engineering redesign and construction of the 0.8-Moz Mt Carlton Gold Mine in Queensland; the successful development of Mt Carlton and Pajingo projects, which contributed to the establishment of Evolution Mining; and recommissioning and developing a number of mining projects in the Mount Isa and Cloncurry region.
Rajesh Padmanabhan - Chief Financial Officer
Rajesh Padmanabhan is a highly skilled and experienced CPA-qualified accountant with expertise across a myriad of financial operations. He has many years of corporate governance experience as an executive team member across a variety of roles including as company secretary of an unlisted public company.
Throughout his career, Padmanabhan has held key finance management roles in mining and construction companies, including Constance Iron, Tablelands Mining Group, Barrick Australia (Porgera Operations) and Mastermyne Group (ASX:MYE).
Padmanabhan has more than 30 years’ experience managing company-wide financial operations, implementing streamlined financial processes, ensuring tax compliance and conducting financial analysis to support decision-making. His commitment to delivering results and his ability to navigate complex financial landscapes make him an integral part of the True North Copper team.
Padmanabhan is also an associate member of the Institute of Chartered Accountants of India and recently completed a certificate in governance and risk management from the Governance Institute of Australia.
Sven Sewell - Sustainability & Net Zero Manager
Sven Sewell has over 25 years’ experience working in a range of environmental fields, including environmental consulting, environmental regulation and within the industry.
For the 15 years prior to joining TNC, Sewell held senior environmental positions at several operating mines across northern Australia. At those operations, he was generally the most senior environment, responsible for all aspects of permitting, compliance, rehabilitation and general environmental management. Sewell's experience in northern Australian mines includes several new and established gold, uranium and bauxite operations.
Sewell holds a BSc (with honours) in environmental science.
Michelle Ellis — Cloncurry Projects Exploration Manager
Michelle Ellis retains over 15 years’ mineral exploration, resource and mining experience predominantly in iron-oxide-copper-gold deposits and terrains across South Australia and Northwest Queensland.
Over the past 11 years, she has actively explored a range of commodities and deposit styles throughout the Mount Isa Inlier.
Ellis has an MSc in economic geology, MSc in environmental management and BSc in applied science - geoscience, and is a member of the Australasian Institute of Mining and Metallurgy.
Rhonda Freeman - Group Manager (Human Resources)
Rhonda Freeman has more than 18 years’ experience attracting top talent, fostering employee development and helping organisations develop safe and supportive work environments. She has worked extensively across the resource sector, including for large national-wide drilling companies.
Freeman has worked for mining companies across a variety of geological settings including brown coal, black coal, uranium, mineral sands and oil & gas. She brings a diverse skill set specific to the resource sector, having worked across all commercial aspects of drilling operations including as an exploration manager.
Freeman has also developed a number of QA and HSE systems for different projects.
Significant Gold, Copper and Nickel Soil Anomalies at Lady Grey Project
- New Gold, Copper and Nickel soil anomalies identified in the recently completed soil sampling programme
- >2km long gold anomaly coincident with structural flexure
- Peak result of 256ppb Au, with a total of 87 samples returning ≥25ppb Au
- Historic Bounty Gold Mine which produced ~1.3moz Au on Covalent Lithium’s (SQM & Wesfarmers, 50/50) Earl Grey Mine, 189Mt @1.53% Li2O¹ Mount Holland mine site located adjacent to Lady Grey Project
- Peak result of 170ppm Cu, with a total of 300 samples returning ≥50ppm Cu
- Peak result of 263ppm Ni, with a total of 464 samples returning ≥100ppm Ni
- Strong spatial correlation between Gold, Copper, Nickel and Sulphur anomalism
- Exploration work programmes targeting drilling mid year
Mr Brian Thomas, Technical Director of Lanthanein commented: “We are greatly encouraged by the identification of multiple new gold, copper and nickel anomalies picked up by the recent tenement wide soil sampling programme which adds another dimension to the project wide prospectivity following the recent discovery of two large Lithium anomalies, Godzilla and Avenger. The Forrestania region is well known historically for its significant gold production with the old Bounty Mine producing ~1.3moz Au, plus the region has proven nickel endowment with the IGO’s, Forrestania Operations ~30km to the south. We will now accelerate our work programmes and approvals processes to be drilling these targets by mid-year.”
Figure 1: New Gold Anomalies at the Lady Grey Lithium Project.
Figure 2: New Copper Anomalies at the Lady Grey Lithium Project.
Figure 3: New Nickel Anomalies at the Lady Grey Lithium Project.
Figure 4: New Sulphur Anomalies at the Lady Grey Lithium Project.
UltraFine+TM Soil Sampling Programme
The survey was completed on a minimum spacing of 400m x 100m, with a total of 1,893 soil samples collected.
Figures 1 through 4 show the soil anomalies delineated from the sampling results. The five gold soil anomalies in Figure 1, represent areas with >50ppb Au – considered highly anomalous using this soil sampling technique. The largest gold anomaly is extends over 2km of strike and is located in a highly favourable structural setting. The copper and nickel anomalies are spatially adjacent to each other along with the high sulphur with a peak value of 5.33% and 50 samples >0.05% which would indicate the presence of weathered sulphides. Exploration reconnaissance and further geochemical sampling is planned to investigate the potential for magmatic sulphides and the presence of gossanous outcrop or subcrop.
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This article includes content from Lanthanein Resources, 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.
Miramar Secures EIS Funding for Bangemall Ni-Cu-Co-PGE Drilling
Miramar has been advised by the Department of Energy, Mines, Industry Regulation and Safety (DEMIRS) that it has been awarded up to $180,000 towards the drilling campaign, which will target Norilsk-style nickel, copper, cobalt and platinum group element (Ni-Cu-Co-PGE) mineralisation at the Mount Vernon and Trouble Bore Projects for the first time (Figure 1).
Miramar is exploring for mafic intrusion-hosted Ni-Cu-Co-PGE sulphide mineralisation related to 1070Ma aged Kulkatharra Dolerite sills, part of the Warakurna Large Igneous Province and the same age as the large Nebo-Babel deposits in the West Musgraves.
Miramar’s Executive Chairman, Mr Allan Kelly, said the funding validated the Company’s exploration model and the potential district-scale opportunity within the Bangemall Project, and looked forward to the maiden drilling campaign.
“Over the last 24 months, the Company has advanced the Bangemall Projects from an exploration concept to regional-scale area selection followed by collection of project-scale datasets and, more recently, to delineation of individual drill targets through ground EM surveys,” Mr Kelly said.
“We have the opportunity to make a discovery of a new style of mineralisation in an underexplored geological province where we are the dominant landholder,” he added.
Upcoming work programme
Miramar’s initial aim is to show “proof of concept” of the Norilsk-style deposit model by discovering Ni-Cu- Co-PGE sulphide mineralisation.
- Upcoming work includes:
- Completion of heritage surveys where required
- Systematic rock chip sampling
- RC drilling
- Working towards grant of various tenement applications
Miramar already has Programme of Work (POW) approval for drilling at Mount Vernon and is currently waiting on approval for Trouble Bore.
Figure 1. Mount Vernon and Trouble Bore Projects showing airborne and ground EM anomalies in relation to Kulkatharra Dolerite sills.
Figure 2. Schematic diagram showing relationship between dolerite sills (green) and sedimentary units of the Edmund and Collier Basins, and the relative position of Miramar’s Ni-Cu-Co-PGE targets (red).
About the Ni-Cu-Co-PGE Bangemall Project
Miramar’s 100%-owned Bangemall Project comprises granted Exploration Licences and Applications covering approximately 2,190 km2 within the Gascoyne region of Western Australia.
The Proterozoic Edmund and Collier Basins have been intruded by numerous 1070Ma aged Kulkatharra Dolerite sills, part of the Warakurna Large Igneous Province, and the same age as the Giles Complex which hosts the large Nebo and Babel Ni-Cu deposits in the West Musgraves.
The region has been identified by both the Geological Survey of Western Australia and Geoscience Australia as having high prospectivity for Ni-Cu-PGE mineralisation associated with the Kulkatharra Dolerite sills, similar to the giant Norilsk-Talnakh Ni-Cu-PGE deposits in Russia.
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Quarterly Activities Report for the Period Ended 31 March 2024
HIGHLIGHTS
- Discovery of large copper-gold porphyry system at La Florida Prospect (Fortuna Project)1:
- Surface sampling results returned grades of up to 3.96% Cu and 2.61g/t Au.
- Large 1.7km x 0.5km mineralised footprint.
- Maiden drill program at El Quillay North Prospect returned shallow, wide copper mineralisation2:
- 26m @ 0.81 CuEq from 29m, including 4m @ 1.87% CuEq from 51m; and
- 5.8m @ 0.78% CuEq from 15.2m.
- El Quillay South Prospect strike length extended to 1,200m and up to 100m wide
- Discovery of new high-grade mineralised trend at El Quillay East Prospect4:
- Grades up to 3.29% Cu and 1.32g/t Au and all samples >1.0% Cu from rock chip sampling
- Mineralised footprint spans an initial area of 250m x 150m with and open in all directions
- El Quillay East is a separate parallel structure to the extensive El Quillay Fault.
- Culpeo’s interest in the high-grade Lana Corina Project increased to 50%5.
- Equity capital raisings totaling A$2.5M (before costs) to existing and new sophisticated and high-net-worth investors.
- Cash balance of A$1.3M and no debt as at 31 March 2024 adequately funds exploration programs.
Operating Activities
During the Quarter, Culpeo’s exploration activities were primarily focused on the Fortuna Project, targeting mineralisation along strike and proximate to the El Quillay Fault zone which has been identified to host copper and gold mineralisation over a strike length of >3km.
Figure 1: Plan view of the Fortuna and Lana Corina Project areas
La Florida Prospect
The La Florida Prospect is a newly defined north-south trending belt of copper-gold mineralisation located within the northern sector of the Fortuna Project, measuring approximately 1.7km long by 0.5km wide (Figure 2). Mineralisation is hosted within andesitic volcanic rocks that have been intruded by quartz- feldspar porphyry lithologies. During the Quarter, a litho-geochemical survey was undertaken to characterise the nature and extent of the mineralised system. Rock chip samples were collected in areas including historic small scale mine workings, outcrop and subcrop on hills where bedrock/fresh rock was visible. All 14 rock chip samples returned anomalous copper and gold results, as shown in Appendix C.
The best copper result of 3.96% Cu was returned from CPO0008688, located in the northern part of the interpreted porphyry system where strong surface mineralisation was identified in the form of malachite and chrysocolla. This sample also returned a gold result of 1.17g/t Au. Of significance was CPO0008692, which returned high-grade copper and gold at 3.18% Cu and 2.61g/t Au1. The sample was taken from historical workings in fresh, unoxidised mineralisation.
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This article includes content from Culpeo 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.
True North Copper Investor Kit
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- Upcoming projects