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Reach Resources Limited (ASX: RR1 & RR1O) (“Reach” or “the Company”) is pleased to announce further laboratory assay results following the Company’s recent sampling program undertaken at its 100% owned Yinnetharra projects, located in the emerging Gascoyne Mineral Field, Western Australia #. The Rare Earth Elements (REE) results from Wabli Creek follow the recently reported high grade lithium results of up to 2.3% Li2O (ASX Announcement – 15 May 2023) and high‐grade Copper results of up to 33% Cu (ASX Announcement – 18 May 2023), both at the Company’s Morrissey Hill project.
Importantly, the receipt of these high‐grade assays from the sampling program at Wabli Creek of 14.3 % Nb2O5, 6.7% Ta2O5, 3689 ppm TREO with 70.3% HREO (Figure 4) build upon previously reported results at this tenement.
HIGHLIGHTS:
- Sensational high‐grade results from surface eluvial samples at Wabli Creek, Yinnetharra
- 14.3 % Nb2O5, 6.7% Ta2O5, 3689 ppm TREO with 70.3% HREO
- Independent geological experts RSC have advised that the consistent high‐grade niobium and HREO is associated with a ~2.5km long rare element pegmatite swarm identified from historical records at Wabli Creek
- Importantly the mineralisation likely extends under cover (Jacobson et al, 2007)
- Source of high‐grade niobium and heavy rare earth oxide (HREO) results confirmed as a rare element pegmatite swarm with niobium, yttrium, fluorine (NYF) geochemical signature
- Rare element (NYF) pegmatites are characterised by their unusual enrichment of niobium and heavy rare earth elements (HREE), in contrast to clay hosted or carbonatite deposits which predominantly contain light rare earth elements (LREE)
- Confirmation of a rare element pegmatite system increases the likelihood of identifying additional high‐grade niobium and HREE which are listed as critical minerals by governments worldwide
- Results outlined above follow previously announced high‐grade results from Wabli Creek:‐
- 6.78 % Nb2O5, 3.71 % Ta2O5, 2.57% TREO with 88% HREO (ASX: RR1 Announcement 13/12/22)
- 32 % Nb2O5, 12.4% Ta2O5 (ASX: RR1 Announcement 29/11/21)
- Historical records show that one tonne of eluvial samarskite** was scraped from one of the pegmatites within the Wabli Creek pegmatite swarm in the 1980’s (no drilling has been undertaken on the tenement). Samarskite is a niobium, yttrium and HREE dominant mineral, further suggesting that this pegmatite swarm could provide a source of high‐grade niobium, yttrium and other HREE such as Dysprosium and Terbium
- The RR1 team has mapped the rare element (NYF) pegmatite swarm over 1.5km (Figure 1 & 2)
- This type of mineralisation is rare and presents a unique exploration opportunity for RR1
* The result is from grab samples of surface eluvium and may not reflect the average in‐situ grade of the host pegmatite.No drill testing of any of the pegmatites within the Wabli Creek Pegmatite Field has been undertaken. The subsurface dimensions of the pegmatites and the extent and continuity of any mineralisation within them currently remains unknown.
** Ref: Fetherston 2004. GSWA Mineral Resources Bulletin 22. Samarskite is a rare earth mineral with chemical formula YFe3+Nb2O
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RR1:AU
Outcropping Copper Gossan Delivers 33% Cu Assays At Morrissey Hill Project, Yinnetharra
HIGHLIGHTS
- High grade copper‐oxide mineralisation (malachite) confirmed at the Company’s Morrissey Hill Project, Yinnetharra with rock chip samples reporting highly encouraging assays of up to 33.2% Cu; 0.2 g/t Au and 141.8g/t Ag. (Figure 1).
- Results follow Morrissey Hill assays of up to 2.3% Li2O (ASX Announcement 15 May 2023).
- Mineralisation at the Swallowtail Copper Prospect was mapped over a strike length of at least 150m and remains open in all directions.
- Significant results include:
- 33.2% Cu, 0.2g/t Au and 141.8g/t Ag (23RRRK0039).
- 14.7% Cu, 0.02g/t Au and 55.6g/t Ag (23RRRK0042).
- 4.2% Cu, 0.3g/t Au and 5.7g/t Ag (23RRRK0041).
- 2.3% Cu, 0. 2g/t Au and 5.0g/t Ag (23RRRK0043).
- Historical sampling 3.0km’s west of Swallowtail could potentially extend the strike with historical results returned:
- 18.5% Cu, 1.1g/t Au and 6.8g/t Ag
- 18.5% Cu, 1.1g/t Au and 6.8g/t Ag
- The rock chip results confirm the Company’s targeting methodology and the potential of the area to host significant mineralisation.
- Morrissey has never been drilled & geochemical surveys planned to commence next week.
Commenting on the results CEO Jeremy Bower said:
“The Morrissey Hill tenement at our Yinnetharra Project continues to deliver. These are outstanding copper results and in conjunction with the 2.3% Li20 announced earlier this week, it is clear how prospective the ground is. We’re focused on sourcing the critical and battery minerals of the future and copper is an important part of our strategy. Despite several world class copper‐gold and polymetallic base metal deposits in the East Capricorn Orogen, the West Capricorn and Gascoyne has been massively under‐ explored. We see this as a huge opportunity.
Importantly, we are fully funded to complete our field programs and drilling campaigns earmarked for this year. Our focus remains on thorough geochemical assessment of each target and getting drill rigs out to Morrissey Hill as soon as possible. This will mean consistent news flow for our shareholders over the coming months.”
FIGURE 3: Morrissey Hill showing location of the Swallowtail Prospect along Stringer Fault line
FIGURE 4: Regional location of Reach Yinnetharra projects
The rock chip results confirm the Company’s targeting methodology and the potential of the area to host significant mineralisation. Systematic surface geochemical surveys including soils, stream sediment and rock chip sampling are planned to commence immediately. Results from this work will guide follow up programs which if warranted may include electromagnetic geophysical surveys and drill testing of priority targets.
The results were reported from an outcropping quartz‐veined gossan, the Swallowtail Prospect, showing visible malachite (copper‐oxide) over a strike length of approximately 150m. The gossan strikes east‐ west, appears to dip steeply towards the south and remains open in both directions. A single historical sample located some 3.0km’s west of Swallowtail, and within the same structural corridor, also reported high grade copper, gold and silver assays indicating a potential strike length of the target zone in excess of 3km’s (Refer to Figure 3).
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Multiple New Lithium (LCT) Pegmatite Targets Confirmed
HIGHLIGHTS
- Independent geological experts RSC consultants have identified four priority target areas for Lithium-Caesium-Tantalum (“LCT”) Pegmatites within the Company’s Critical Elements Projects, located in the centre of the rapidly developing Gascoyne “Battery Metals” Province, WA
- Each of the target areas are associated with confirmed fertile parental granites of the Thirty Three and Durlacher Supersuites and contain the same metasedimentary sequences which host Red Dirt Metals (ASX: RDT) Yinnetharra Lithium Project, less than 10 km’s to the NE of Reach Resources’ tenure
- All of the targets are defined by favourable geology, multi-element pathfinder geochemistry and the presence of mapped Geological Society of Western Australia (GSWA) Tin, Tantalum and Lithium pegmatites
- A helicopter supported field reconnaissance program has been initiated to assess the priority areas in more detail
- Drilling of priority targets is scheduled to commence in CY Q3/4 2023 once all regulatory approvals are received
CEO Jeremy Bower commented:
“RSC’s independent expert analysis confirms our belief that our landholding in the Gascoyne has the potential to host significant battery metal deposits.
Phase 1 of the assessment focused on the lithium potential at our Critical Elements Projects and has not only cemented Morrissey Hill as our primary lithium target but importantly has identified three new lithium target areas. Each of the areas are defined by the presence of a highly fertile parent granite and supported by key multi-element geochemistry including lithium, caesium, tantalum, tin and rubidium which are all well documented associations of lithium bearing “rare metal” LCT pegmatite mineral systems.
This is an exciting time for the Company and our shareholders, and we look forward to delivering updates to the market over the coming months. The Future is within Reach”.
Phase 1 of the assessment focused on the lithium potential of the Company’s Critical Elements Projects which includes the newly acquired Morrissey Hill and Camel Hill projects as well as the Wabli Creek project (Figure 1).
Figure 1: Critical Elements Projects
The assessment included a review of relevant deposit models and mineralisation styles of interest, regional and local geology, local mineral systems, academic papers, open file company and government reports and all available geochemical, geophysical and remote-sensed data sets.
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Unconformity Uranium Drill Targets Identified from 2024 Geophysical Data
Key Highlights
- Final data received and interpretation completed for the ground electromagnetic geophysical surveys from the winter 2024 program at the Marshall and North Millennium projects.
- Several conductive anomalies identified at Marshall, located above and below the unconformity, consistent with regional exploration model.
- Stacked anomalies concurrently with multigenerational geophysical data provides a base to assess the exploration targets and refine drillhole targets.
- The projects are located 15 kilometres from the majority Cameco owned Millennium deposit, and just 40km from the world class McArthur River mine.
- Basin remains funded for the next round of field exploration.
The ground electromagnetic successfully identified 3 main targets which confirms the geological and exploration model. Of note is Target 1 (Figure 1), where modelled EM plates below the unconformity align with a sandstone ZTEM anomaly, which is interpreted to be alteration within sandstone. The identification of these targets is encouraging and consistent with regional trends in the southeastern Athabasca and provides increased confidence in drill hole targeting. Basin is currently reviewing options and priorities of how to progress exploration of these confirmed targets.
Basin’s Managing Director, Pete Moorhouse, commented:
“Conducting ground geophysical surveys on Marshall and North Millennium was a milestone in advancing these underexplored projects in Basin’s uranium portfolio. The form of these anomalies is highly encouraging given the proximity to some of the world’s largest uranium deposits.”
Key results
Following the encouraging conductive anomalism highlighted by the 2023 3D inversion of two historic airborne Electromagnetics (Z‐Tipper Axis) (“ZTEM”) datasets partially covering the current North Millennium and Marshall projects3,4, Basin contracted Discovery International Geophysics5 to carry out ground Stepwise Moving Loop Transient Electromagnetic (‘Ground EM’) surveys on areas of immediate interest within the Projects.
Figure 1 Three main anomalies shown from 2024 ground EM, in plan view (top diagrams) and cross- section looking northeast (bottom diagram). The ground EM anomalies are displayed with the modelled plates against the historical ZTEM data.
The 2024 Ground EM survey data returned six conductive anomaly picks producing three main target areas (Figure 1). The anomalies correlate strongly with the southern edge of the circular ZTEM conductive anomaly at Marshall and the interpreted northern edge of the circular anomaly identified in the historic data. A weaker EM pick was also interpreted centred between the two prominent ZTEM conductivity anomalies.
Three-dimensional modelling using Maxwell produced six electromagnetic conductive plates within the basement stratigraphy, all below the unconformity (Figure 1). The two southeastern plates are clearly aligning with a conductive sandstone ZTEM anomaly identified from the historic data, which is above the interpreted unconformity. This is interpreted as potential basal sandstone alteration proximal to the EM anomalies and constitutes a high-priority drill target area, refer figure 2.
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Airborne EM over Multiple Targets on Ti-Tree Project
- Augustus Minerals has contracted UTS Geophysics to conduct a VTEM Max survey over several Copper, Cu-Ni-PGE, Zn-Pb-Ag and Uranium targets along the money Intrusion and within proximity of the prospective 85k long Ti-Tree Shear.
- The surveys will cover:
- The Money Intrusion, prospective for Cu-Ni-PGE mineralisation.
- Copper Ridge and Nics Bore over anomalous Copper Drilling results
- The Coo Creek prospect where drilling by Augustus in 2023 identified strongly anomalous Zn-Pb-Ag mineralisation.
- The Munaballya Well North area which shows potential for economic Uranium mineralisation.
- The surveys will help to advance the untapped potential of the Ti-Tree project to host economic mineralisation of multiple commodities.
Andrew Ford, GM Exploration
“The VTEM survey will provide key targeting data over three highly prospective and different prospects with potential for multiple commodities. Whilst the high prospectivity for copper mineralisation has been well documented, the addition of uranium and Broken Hill base metal style mineralisation highlights the quality of the underexplored Ti-Tree project”.
VTEM
UTS Geophysics has been engaged to conduct a helicopter borne VTEM Max survey comprising 646-line km over three separate survey areas. The system is excellent for locating discrete conductive anomalies as well as mapping lateral and vertical variations in resistivity which helps map structure, alteration and rock type. The system also collects magnetic data through a caesium magnetometer. The transmitter/receiver loop is suspended on a cable approximately 40m below the helicopter (Figure 1).
Figure 1 VTEM Max helicopter deployed electromagnetic survey arrangement.
Figure 2 Prospects and VTEM Survey areas.
Money Intrusion
The Money Intrusion, which has proven potential to host Ni-Cu-Co-PGE (platinum group elements), is part of the regional Mundine Well Dolerite Suite, a regionally extensive dolerite (strike length >80km). This extensive mafic intrusion, which is comprised of a variety of lithologies, including gabbro in the core, olivine dolerite on the chilled lower contact or keel and fine-grained dolerite on the outer edges. Mapping, aeromagnetics and multi-spectral imagery show that the Money Intrusion within the Ti-Tree Project covers a strike length greater than 16km, reaching widths >600m in the north of E09/23241.
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Latest Kameelburg Assays Up To 10.38% Nb2o5 and 9.89% TREO
Highlights
- A total of 74 highly prospective rock samples recently collected from various beforsite and mafic dykes
- Most notable assays reveal up to 10.38% Nb2O5 and 9.89% TREO
- Large scale geological mapping of Kameelberg carbonatite is nearing completion
- Track access clearance & preparation for underground water supplies underway for upcoming maiden diamond drilling programme
Results from recently collected seventy-four (74) samples were received and highlighted the REE rich nature of the carbonatite with TREO(+Y) assays ranging from 1.16 to 9.89%, refer to Figure 1 for samples locations and Table 1 for results.
Figure 1: Southern Carbonatite Margin Geological mapping area with rock chip samples
Niobium Results Along Mafic Dykes
In addition to sampling the carbonatite plug, a further four (4) samples were collected across the Nb dyke zone on the southwest flank of the carbonatite. Results for these samples ranged from 5.44% to 10.38% Nb2O5. This provides additional confidence to previous niobium findings (see announcements dated 28 February 2024 and 27 December 2023). Table 2 compiles the Nb results with Figure 2 depicting recent sample locations in relation to the previous Nb2O5 results.
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