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Quarterly Activities Report – June Quarter 2022
HIGHLIGHTS
- Bitterwasser Lithium Project: Final assay results for remaining 32 of the 64 holes drilled over the Eden Pan on a 500m grid received
- Bitterwasser Lithium Project: Regional investigation into Bitterwasser Lithium-in-clay and Lithium-in-brines minerals system defined extensive tectonic rift-related fault structures in a closed basin (the Kalkrand half-graben), similar to Clayton Valley in Nevada1
- Kum-Kum Nickel Project: Historical core samples obtained during investigation were sampled and returned the first known record of PGE and Au mineralisation in the ultramafic units of the Tantalite Valley Complex. The best results indicated mineralisation of2:
- 0.71% Ni, 0.28% Cu, 0.84 g/t Pd and 0.4 g/t Pt in orthopyroxenite
- 0.58% Ni, 0.30% Cu, 0.69 g/t Pd, 0.31 g/t Pt and 0.26% Au in orthopyroxenite
- Swanson Tantalum Project: Mineral Resource update delivers an estimate for a total indicated and inferred resource of 2.59Mt (an increase of 115%) at an average grade of 486 ppm Ta2O5 (an increase of 17.9%), 73 ppm Nb2O5 and 0.15 % Li2O.3 An Environmental Clearance Certificate and Mining Licence was also issued for the project.
1 Refer to ASX Announcement dated 09 May 2022 titled “Regional study advances work program for district scale Lithium in brines”
2 Refer to ASX Announcement dated 09 May 2022 titled “Kum-kum nickel project mineral systems approach results”
3 Refer to ASX Announcement dated 06 May 2022 titled “JORC Mineral Resource at Swanson Tantalum project doubles in size
SUMMARY OF MINING EXPLORATION FOR THE QUARTER
Bitterwasser Lithium Project
Assay results for the outstanding 32 drill holes from the 64-hole follow-up auger drilling campaign completed on 9 February 20224 over the Eden Pan was received during the quarter. All the drill holes commenced in the mineralised Upper Brown Clay Unit and every hole, except two drill holes where thin clay units were intercepted at the edges of the Eden Pan, were sampled from top to bottom up to a depth of 9.60m. Notably, the entire sequence of the drill holes sampled (i.e. Upper Brown Clay Unit and Middle Green Glay Unit) returned lithium mineralisation5.
The Middle Green Clay Unit, lithologically named the Middle-Unit (MU), comprises the dominant lithological unit from which the maiden Mineral Resource6 was derived. This green clay unit was intersected in 18 of the 32 drill holes from which assay results were received and extended from a depth of 1.4 m below surface to the maximum End-of-Hole (EOH) depth of 9.60m. A total of 43 holes from the 64-hole follow-up auger drilling campaign intersected the Middle Green Clay Unit at similar depths.
Figure1: Stacked cross section of the Eden Pan depicting drill-hole interpretation with reference to the existing Mineral Resource (green layers) and clay units intercepted in the follow-up auger drilling program.
4 Refer to ASX Announcement dated 10 March 2022 titled “Encouraging lithium drilling assay results at Bitterwasser”.
5 Refer to ASX Announcement dated 2 May 2022 titled “Final Lithium Drilling assay results at Bitterwasser”.
6 Refer to ASX Announcement dated 3 November 2021 titled “Arcadia acquires lithium project with JORC Mineral Resources”.
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This article includes content from Arcadia 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.
Kum-Kum Nickel Project Mineral Systems Approach Results
HIGHLIGHTS
- The Department of Earth Sciences at the University of Stellenbosch concluded a Minerals Systems Approach investigation over the Kum-Kum Ni-Cu-PGE Project Licenses
- During the investigation several historical documents containing exploration results over the Kum-Kum Project were discovered, which reported best historical borehole intersections from three boreholes drilled by Rio Tinto Exploration, Tantalite Valley Minerals and Southern Sphere between 1972 and 1976 as follows:
- 16.00 m @ 0.65% Ni, 0.16% Cu
- 6.00 m @ 0.61% Ni, 0.30% Cu
- 2.44 m @ 0.62% Ni, 0.30% Cu
- Historical core samples obtained were sampled and returned the first known record of PGE and Au mineralisation in the ultramafic units of the Tantalite Valley Complex. The best results indicated mineralisation of:
- 0.71% Ni, 0.28% Cu, 0.84 g/t Pd and 0.4 g/t Pt in orthopyroxenite
- 0.58% Ni, 0.30% Cu, 0.69 g/t Pd, 0.31 g/t Pt and 0.26% Au in orthopyroxenite
- The primary magmatic sulphides comprise of coarse-grained pentlandite, pyrrhotite, and chalcopyrite
- Whole rock geochemistry highlights the geochemical similarities between the TVC and the Kum-Kum complexes. The TVC crystallized as a mafic/ultramafic layered intrusion and likely from a primitive mantle-derived parental magma.
Philip le Roux, the CEO of Arcadia stated:
“Historical drilling results reporting high values of Nickel and Copper mineralisation attracted us to the Kum-Kum Project. From the work done by the team from the University of Stellenbosch it is evident that PGE and Au mineralisation is also present and that we are looking at a geological environment that possibly could contain a stratiform Ni-Cu-PGE disseminated sulphide ‘reef’ horizon. The prospect of possibly discovering a polymetallic (Ni, Cu, Au & PGE’s) deposit has increased the allure of the KumKum Project for us, which we will eagerly follow up with further exploration. The results of the study will assist the Company to focus its exploration efforts in order to define drill targets.”
Mineral Systems Approach Results
The Tantalite Valley Complex (TVC) has been subject to a geological study by a team from Arcadia and the University of Stellenbosch involving two field sampling campaigns (8 days; 94 field samples collected) augmented with detailed consideration of historical drill core segments (57 samples), and supporting data from historical records, hyperspectral mapping, and stream sediment sampling.
Collected field- and core- samples were subjected to a suite of analytical protocols including reflected- and transmitted-light optical petrography, whole-rock major and trace element chemistry, precious metal assays, sulphur isotope analyses, scanning electron microscopy with associated spectrometries and in-situ Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) of individual sulphide grains. Together, these results provide novel insights into the known mineralisation and prospectively of the TVC.
The TVC is a ~7 km long by 3.3 km wide and roughly oval-shaped mafic-ultramafic complex representing a fault-bound block inside a dextral Pofadder Shear Zone (PSZ) that cuts across southern Namibia. Existing geochronology places the TVC as a ~1.2 Ga intrusion and roughly coeval with a Kum Kum Klippe mafic complex that is located roughly 40 km south-east and along the strike of the PSZ.
Whole rock geochemistry highlights the geochemical similarities between the TVC and the Kum Kum suite, but with the former uniquely showing much stronger geochemical evidence for overwhelmingly cumulate rocks. This implies that the TVC crystallized as a significant mafic/ultramafic layered intrusion and likely from a primitive mantle-derived parental magma that originated from a metasomatized mantle.
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This article includes content from Arcadia 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.
Quarterly Activities Report
- Grant applications lodged with two US Government agencies (Defense and Energy) with strong support from state politicians, agencies and potential industry partners
- Exceptional metallurgical testwork results to feed into McDermitt PFS, with value enhancement opportunities identified
- Board and management enhanced with the commencement of Ian Rodger as CEO and Wayne Zekulich as Non-Executive Chair
US LITHIUM
McDermitt Lithium Project (Jindalee 100%)
In February 2023, Jindalee Lithium Limited (Jindalee or the Company) announced an updated Mineral Resource Estimate (MRE) at Jindalee’s 100% owned McDermitt Lithium Project (USA) (Figure 1)1.
The 2023 MRE for McDermitt contains a combined Indicated and Inferred Mineral Resource Inventory of 3.0 Billion tonnes at 1,340 ppm lithium (Li) for a total of 21.5 Million tonnes lithium carbonate equivalent (LCE) at 1,000 ppm cut-off grade. At 21.5 Mt LCE, McDermitt is the largest lithium deposit in the United States (US) by contained lithium in Mineral Resource, and a globally significant resource (Table 1), with the deposit remaining open to the west and south (Figure 1).
Table 1 – Summary of 2023 McDermitt MRE1 at the reporting cut-off of 1,000 ppm. Note: totals may vary due to rounding.
Exploration Target
On 21 November 2023 Jindalee announced an independently estimated Exploration Target Range (ETR) at McDermitt of 300 – 700 Million tonnes at 1,100 – 1,400 ppm Li (at 1,000ppm Li cut-off) (Table 2, Figure 1)2.
The Exploration Target surrounds and abuts the 2023 MRE and is extrapolated from 62 holes drilled at McDermitt from 2018 to 2022. Material for the MRE extends to a maximum distance of 1,200m from the nearest hole, with the ETR extending to a maximum of 1,500m from the nearest hole (Figure 1).
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This article includes content from Jindalee Lithium 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.
Quarterly Activities/Appendix 5B Cash Flow Report
HIGHLIGHTS
1. Commencement of Stage 1 Drilling Program at the Rio Grande Sur Lithium Project.
2. Completion of commissioning of Lithium Carbonate Pilot Plant.
3. Discussions underway with provincial Government for evaporation pond environmental permitting.
4. $1.36 million in cash and equivalents available at quarter end.
PROJECT DEVELOPMENT
During the March 2024 quarter, Pursuit Minerals Ltd (“Pursuit” or “Company”) has continued to advance through numerous engineering and geological studies, permitting approval processes and stakeholder engagement activities at our flagship Rio Grande Sur Lithium Project.
Rio Grande Sur (RGS) Lithium Project Argentina
The Rio Grande Sur Project comprises of 5 tenements prospective for lithium on the Rio Grande Salar in the Salta province of Argentina, in addition to a Lithium Carbonate Pilot Plant located in the city of Salta. The five tenements cover approximately 9,233 hectares (Table 1).
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This article includes content from Pursuit 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.