Annual Report to shareholders
Released
Released
Announcement PDF
1
Litchfield Minerals Limited
ACN 612 660 429
ANNUAL REPORT
FOR THE FINANCIAL YEAR ENDED 30 JUNE 2025
2
Litchfield Minerals Limited - Annual Report – for the year ended 30 June 2025
Contents
CHAIRMANS’ LETTER............................................................................................................................ 3
REVIEW OF OPERATIONS .................................................................................................................... 5
CAUTIONARY STATEMENTS .............................................................................................................. 25
DIRECTORS’ REPORT......................................................................................................................... 27
AUDITOR’S INDEPENDENCE DECLARATION.................................................................................... 40
STATEMENT OF PROFIT OR LOSS AND OTHER COMPREHENSIVE INCOME................................ 41
STATEMENT OF FINANCIAL POSITION.............................................................................................. 42
STATEMENT OF CHANGES IN EQUITY.............................................................................................. 43
STATEMENT OF CASH FLOWS........................................................................................................... 44
NOTES TO THE FINANCIAL STATEMENTS........................................................................................ 45
CONSOLIDATED ENTITY DISCLOSURE STATEMENT....................................................................... 67
DIRECTORS’ DECLARATION............................................................................................................... 68
INDEPENDENT AUDITOR’S REPORT.................................................................................................. 69
SHAREHOLDER INFORMATION.......................................................................................................... 72
Corporate Directory
Directors and Company Secretary
Matthew Pustahya
Peter Eaglen
Mark Noppé
Peter Harding-Smith (Company Secretary)
Stock Exchange Listing
Australian Securities Exchange Ltd
ASX Code: LMS
Head office and Registered Office
Suite 5, Level 12, 10 Market Street
Brisbane QLD 4000
Phone: (07) 3212 6299
www.litchfieldminerals.com.au
Solicitor
EMK Lawyers
Suite 1, 519 Stirling Highway
Cottesloe WA 6011
Auditors
Moore Australia Audit (WA)
Level 15, Exchange Tower
2 The Esplanade
Perth WA 6000
Australian Company Number
612 660 429
Share Register
Xcend Pty Ltd
Level 2, 477 Pitt Street
Haymarket NSW 2000
Banker
Westpac Banking Corporation Limited
3
CHAIRMANS’ LETTER
Dear Fellow Shareholders,
On behalf of the Board of Directors, it is my pleasure to present to you the 2025 Annual Report. With
2025 being another very busy year for Litchfield Minerals Limited (Litchfield, or the Company), there has
been a lot to deliver on.
Just as we undertook in our inaugural year, this year Litchfield Minerals continued exploration efforts with
high energy, with deep consideration of what the geology is telling us and for what steps are best for our
shareholders, our commitments to governments and for our broader stakeholders. Our carefully
considered exploration program was expanded this year to intensify our focus on the Oonagalabi lease
(EL32279), which was a future-proofing purchase we completed in late 2024. We undertook this
deliberate pivot of the exploration program at the start of the year in order to more rigorously assess the
potential of this tenement located 120 kms northeast of Alice Springs.
Our relentless focus remains on using the funds that have been invested into the company on the most
important aspect of an exploration company, which is putting the funds to use in the field. This stands us
apart from the bulk of exploration companies that are available to investors. Our financial statements
clearly show that we spend greater than 85% of funds on in-field efforts, which, this year, has been
almost completely on the assessing the potential of the Oongalabi lease. Throughout the year, the in-
ground efforts have not only confirmed the potential for a major mineral system being present, however,
more importantly, started to reveal the scale of this system through increasingly appreciating the
geological context of the mineralisation being detected.
I can assure everyone that the Board is continuously encouraging a forward-thinking approach through
the implementation of the advanced geophysical techniques that shareholders will have read throughout
our ASX announcements. We are keen to use all the tools in the toolbox that are available in order to
identify new high-priority targets. The Board’s support of team's ability to integrate cutting-edge
technology is unwavering as it will ensure a deeper understanding of the geological landscape of our
leases as “working smart” will continue to be a basis for accelerating progress towards future
discoveries.
Myself and the other Board directors have been pleased to see that the year’s field work has once again
been completed with no lost time injuries, no medical treatments and only one minor first aid case.
Matthew Pustahya, our Managing Director, takes it very personally and this is demonstrated in how he
leads the way for a safe and harmonious workplace for our employees and all our contractors. Matthew
not only understands the need for small exploration camps to not only work safely, but also the
importance of working well together with all the local communities in order to achieve in-field efficiencies
that our Company desires for optimal programme delivery.
Challenges remain for exploration companies in Australia as there continues to be a broad scale lack of
enthusiasm for investing the very early stages of the mining processes. Hence exploration funding has
been difficult across the ASX-listed companies. However, for LMS, this has sharpened our resolve to be
a standout for investors for how we operate and use investor funds very wisely and frugally. In addition,
to supplement funding through capital raises, we are active in sourcing alternative income streams.
Obtaining a partner to move forward with mining our assets like the identified garnet-mineralised heavy
mineral sands will continue to be fostered. The objective is to obtain alternate funding streams to make
LMS increasingly independent of relying on capital raises.
As with any great exploration company, we never stop looking for how to keep the project “funnel” being
filled with new prospects that will reward our loyal shareholders. Every Board meeting, we have a
dedicated session on discussing what opportunities have recently arisen. This is not just about looking
4
externally across the globe for future exploration optionality, we still have untapped latent potential within
the company. Looking forward, there will soon be an appropriate time to further evaluate the
manganese potential we have in our eastern leases near the Queensland border with the Lucy Creek
leases. The changes in the market are starting to make bringing additional manganese to market an
increasingly attractive investment.
Being a company with its assets based in remote parts of the Northern territory does come with
challenges, mostly logistical, however, it is pleasingly to see how our efforts and positive interactions
have reaped rewards to make life easier. In particular, the support of the Northern Territory government.
Through several departments, the Northern Territory government has demonstrated their support with
fast-paced responses through regulatory processes and, importantly, the grants we have received from
the Northern Territory Geological Survey. Their support is gratefully acknowledged.
As ever, we are determined to maintain excellent relationships across all external stakeholders with the
efforts we are undertaking. Our honesty and integrity can be seen through the content and frequency of
keeping people updated with our ASX announcements and our other communications. I will ensure that
this basis of good communications does not abate.
In summary, our company’s second year has been one of concerted effort, which could not have
happened without the key support the shareholders. Our goal of discovering and developing new
mineral deposits in the Northern Territory remains steadfastly in our sights. The personal effort that our
Managing Director, Matthew Putahya, invests and the deep considerations of our Board members in
support, continues to underscore Litchfield's commitment to delivering value for shareholders.
Yours sincerely
Dr Peter Eaglen
Non-executive Chairman
5
REVIEW OF OPERATIONS
Litchfield Minerals Limited holds a portfolio of exploration assets in the Northern Territory, highly
prospective for base metals, manganese, rare earths, and uranium. This portfolio comprises five projects
and six granted tenements including Oonagalabi (EL32279), Mt Doreen (EL31305), Lucy Creek
(EL33568, EL33888), Paradise Well (EL32190) and Silver Valley (32214) and covering over 2,500km2
.
Figure 1. Litchfield Minerals Ltd. Northern Territory projects and tenement location map.
Oonagalabi Project (100% Owned, EL32279)
• Project acquired from Kalk Exploration Pty. Ltd. in September 2024 for $200,000.
• Sentinel-2 hyperspectral data was acquired and processed in October 2024 to help define new
exploration targets throughout EL32279.
• A drone magnetic survey (50m spacing, 613 line km), soil (161) and rock chip sampling (13) were
completed in December 2024.
• 3D magnetic inversion modelling identified the Bomb Diggity area as a potential heat/fluid/metal
source for observed mineralisation at the Oonagalabi prospect
• Pole-Dipole IP survey (8 lines, 13.1 line km) completed in February 2025 discovered a large,
highly chargeable anomaly.
• IP 3D inversion modelling defined two sub-parallel chargeable anomalies with the eastern zone
having no surface expression indicating that the subsurface chargeable zone is substantially
larger than the exposed mineralised zone at surface.
• Phase 1 RC drilling (6 holes, 1,646m, March/April) intersected mineralised Oonagalabi Formation
in all six holes demonstrating a strong correlation between IP chargeability and disseminated Cu-
Zn mineralisation. OGRC006 confirmed mineralisation associated with the eastern IP anomaly
and OGRC002 intersected strong magnetite-Au-Bi mineralisation that overprints older Cu-Zn
mineralisation.
• Ground gravity (259 stations, 200m x 100m grid) was completed at Bomb Diggity in May 2025 as
it emerged as a potential heat/fluid/metal source for the broader Oonagalabi project, resulting in
multiple +2.8SG, +0.5mGal density / residual gravity anomalies coincident with a steeply
plunging, pipe-like magnetic anomaly.
• Heavy mineral sands sampling was completed along the Clarence River to assess potential for
garnet and other valuable heavy minerals.
• Two Geophysics and Drilling Collaborations grants (GDC) were awarded to Litchfield for
6
tenement-wide VTEM ($100,000) and two diamond drillholes ($107,684).
Key Exploration Targets:
• Oonagalabi: A potentially large-tonnage, carbonate-hosted, base metal deposit of either
sedimentary exhalative (SEDEX) or skarn origin.
• Bomb Diggity: A large pipe-like magnetic anomaly that is interpreted to be the heat/fluid/metal
source for the broader Oonagalabi system.
• VT1: A cluster of high conductance anomalies hosted within the prospective Oonagalabi
Formation approximately 8km along strike from Bomb Diggity.
• VT2: A single, high conductance modelled VTEM plate that cuts across stratigraphy, possibly
indicative of late-stage sulphide remobilisation similar to the Jervois deposit.
• Clarence River: Initial bulk sampling of alluvial sand in the Clarence River indicates a +30%
heavy mineral component dominated by amphibole, pyroxene and garnet (7 – 15%).
Hyperspectral Analysis
Sentinel-2, satellite-borne hyperspectral data was acquired in October 2024 to improve upon low-
resolution Landsat data that clearly showed a colour anomaly associated with outcropping zones of
Oonagalabi Formation. Data was processed and interpreted by Neil Pendock (Dirt Exploration Pty. Ltd.)
who combined proprietary algorithms, spectral unmixing and a multivariate statistical classifier to define
known zones of outcropping Oonagalabi Formation and then then assessed the rest of EL32279 for
similar signatures, resulting in the definition of multiple new exploration targets (Figure 2).
Drone Magnetic Survey
A 50m line-spacing, 613 line-km drone-based magnetic survey was flown in December 2024 over the
central part of EL32279 and was a significant improvement on the existing 400m line-spacing data
(Figure 3). 3D inversion modelling was instrumental in defining the large, pipe-like magnetic anomaly at
Bomb Diggity (Figure 9) and to resolve the structural complexity of the broader project area.
Surface Geochemical Sampling
Soil (161) and rock chip sampling (13) was completed in December 2024 to expand upon the limited
extent of historic sampling and to provide a full multi-element suite of data (Figure 4). Sampling defined
a +2km zone of Cu-Zn anomalism with a 900m, +0.4% Cu – 0.4% Zn higher-grade central zone
developed on the main area of outcropping Oonagalabi Formation. Reconnaissance mapping
completed during sampling provided clarity on the complex structural and metamorphic history of the
mineralised system.
7
Figure 2. Sentinel-2 multivariate statistical classifier image showing areas of strong correlation (red) to
weak correlation (blue) and identified carbonate-replacement and VMS targets for follow-up exploration.
Figure 3. Airborne TMI RTP magnetic images comparing the historic 400m data to the 2024 50m data.
8
Figure 4. Historic detailed Oonagalabi geological mapping showing the location of the December 2024
soil and rock chip sampling.
Pole-Dipole Induced Polarization Survey (PDIP)
An 8-line, 13.1km PDIP survey was completed in February 2025 after it was concluded that the 2008
Silex PDIP survey data was of insufficient quality to rely upon for drillhole planning. The new survey
exceeded all expectations with the definition of a large chargeability anomaly that extends to the
northeastern and southwestern limits of the surveyed area (+900m strike at +20mV/V), Figure 5. 2D and
3D inversion modelling defined two sub-parallel zones of chargeability, one corresponding to depth
extensions below known mineralisation on the western side of the prospect and a second zone adjacent
to the east that represents a fold repetition of the mineralised stratigraphy with no surface expression
(Figure 6). OGRC006, completed in Phase 1 RC drilling, demonstrated that this eastern zone is just as
mineralised as the main outcropping zone and indicates that the volume of mineralised material at
Oonagalabi is larger than was expected at the time of project acquisition.
9
Figure 5. 150m depth slice of the 2D chargeability inversion model showing two sub-parallel, +20mV/V
anomalies. The western anomaly is associated with outcropping Oonagalabi Formation and the eastern
zone represents a fold repetition of the mineralised formation with no surface expression. The
chargeability anomalies are open to the northeast and southwest.
Figure 6. 2D chargeability inversion section 95300N showing the two sub-parallel chargeability
anomalies interpreted to represent thickened sections of Oonagalabi Formation within fold closures.
Phase 1 RC Drilling
A six-hole, 1,646m RC drilling program was completed in March / April 2025 to assess the newly
identified chargeability anomalies (Figure 5). The program confirmed the polymetallic nature of the
system, significantly expanded the mineralised envelope and identified the presence of multiple
10
mineralisation styles, potentially from different metallogenic events.
Five, 150m spaced drillholes targeted the western flank of the main IP chargeability anomaly and a sixth
hole tested the fold-repeated eastern flank. All holes returned broad, low-grade mineralised intercepts
within the Oonagalabi Formation (Table 1):
• OGRC001, 31m @ 0.32% Cu, 1% Zn from 35m
• OGRC002, 15m @ 0.45 g/t Au, 0.17% Bi, 1.09 g/t Ag, 0.35% Cu, 0.12% Zn from 50m
• OGRC003, 53m @ 0.55% Cu, 0.44% Zn, 2.99 g/t Ag, 0.059 g/t Au from 93m
• OGRC004, 63m @ 0.45% Cu, 0.36% Zn from 44m
• OGRC005, 11m @ 0.5% Cu, 1.43% Zn from 96m
• OGRC006, 35m @ 0.24% Cu, 0.77% Zn from 142m
Table 1. Phase 1 RC drillhole collar information.
Mineralisation is typically disseminated within the Oonagalabi Formation and shows a reasonably strong
correlation with IP chargeability. Drilling confirmed the presence of two distinctly different mineralisation
styles, including a widespread calc-silicate-Cu-Zn ± Pb assemblage associated with the Oonagalabi
Formation and a magnetite-Au-Bi assemblage associated with a distinct magnetic anomaly along the
western margin of the prospect. The observed Au-Bi mineralisation shows similarities to Tennant Creek
IOCG-type and other Northern Territory intrusion-related mineral systems. This has been interpreted to
represent a younger metallogenic event distinct from the earlier skarn / SEDEX-type calc-silicate-base
metal event. The large magnetic anomaly at Bomb Diggity, located 1.5km to the northeast of
Oonagalabi, has been interpreted as the potential causative intrusion for Au-Bi mineralisation and
represents an exciting new exploration target that has expanded the scale and prospectivity of the
broader Oonagalabi project (Figures 7, 8, 9).
Bomb Diggity Ground Gravity Survey
Ground gravity was completed at Bomb Diggity prospect in May 2025 to identify density anomalies
potentially related to the large, pipe-like magnetic anomaly (200m x 100m grid, 259 stations, 2.3km x
1.8km coverage), Figure 10. Data processing to remove the regional gravity field identified four
+0.5mGal residual gravity anomalies, three of which are coincident with, or adjacent to the upper parts of
the modelled magnetic anomaly (A – D, Figure 10). Additional exploration is required to determine if the
Bomb Diggity magnetic anomaly is related to a magnetite-bearing hydrothermal breccia and if the gravity
anomalies represent areas of increased sulphide concentration.
11
Figure 7. IP Line 95300N looking northeast showing the OGRC003 mineralised intercepts within the
heart of the chargeability anomaly. Historic hole SLX001 did not intersect mineralisation, most likely
because it drilled underneath the two Oonagalabi Formation fold closures. Section window 100m
northeast and 50m southwest of 95300N.
Figure 8. Long section between Bomb Diggity and Oonagalabi (looking southeast) showing the Bomb
Diggity magnetic anomaly (red polygons, >0.022 mesh) and interpreted hydrothermal fluid outflow into
the Oonagalabi system. OGRC002 intersected 15m @ 0.45 g/t Ay, 0.17% Bi within semi-massive
magnetite alteration that appears to overprint earlier carbonate-replacement Cu-Zn mineralisation.
12
Figure 9. Magnetic (green, +0.022 mesh) and gravity (red, +2.77 SG) three-dimensional inversion
models and the Oonagalabi two-dimensional IP chargeability inversion sections (looking north). The
Oonagalabi and Bomb Diggity zones are interpreted to sit within a northeast-trending mineralised
structural zone with hydrothermal alteration driven by the Bomb Diggity hydrothermal-intrusive complex.
Figure 10. BA267_Res500m_H_NEsun residual gravity image of the Bomb Diggity ground gravity
survey showing the main residual gravity anomalies (+0.5mGal).
13
Heavy Mineral Sands Sampling
Five bulk stream sediment samples were collected over a 1km stretch of the Clarence River
approximately 3.5km southwest of Oonagalabi (Figure 11). Screening and specific gravity classification
was completed and returned highly encouraging heavy mineral concentrations (31.1 – 44.9%) and a high
proportion of sand-size fraction (averaged 57.3% across all samples). QEMSCAN and XRD
mineralogical analysis showed that the heavy mineral proportion of the original sample comprises
dominantly Calcium Pyroxene / Amphibole (62.7%) and garnet (28.7%) with accessory ilmenite (1.3%)
and titanite (0.5%). This analysis indicates an approximate garnet concentration in the original sample of
7.1 – 15.9% and 21 – 28.3% Calcium Pyroxene / Amphibole (Table 2).
Figure 11. EL 32279 showing the location of the five bulk samples and identified alluvial target zones.
Table 2. Screening, specific gravity, QEMSCAN and XRD data for the 5 Clarence River bulk stream
sediment samples.
SSS0001 SSS0002 SSS0003 SSS0004 SSS0005
%sandsizefraction 48.4 64.3 60.1 56.7 57
Heavymineralsas%oftotalsample 31.1 37.1 39.6 44.1 44.9
%Garnetinheavymineralconc 23.1 21.2 33.4 36.1 29.9
%CaPx/Amphibinheavymineralconc 68.0 69.3 59.2 53.9 63.2
%Garnetintotalsample 7.2 7.8 13.2 15.9 13.4
%CaPx/Amphibintotalsample 21.1 25.7 23.5 23.8 28.4
14
Mt Doreen Project (100% Owned, EL31305)
• Final assays received for the inaugural RC/DD drilling program
• Ground gravity completed at the Patmungala and Dumunzi targets (344 stations, 200m x 200m)
identifies multiple residual gravity anomalies
• Lithostructural interpretation significantly improved structural model and mineralisation framework
• VTEM survey (tenement-wide, 2,254 line km, 200m spacing) identified multiple conductors along
the Patmungala trend and confirmed Silver King as the dominant conductor within the tenement
• Moving Loop EM (MLEM) completed at Patmungala Pb and Patmungala Cu identified multiple
weak- to moderate conductive zones
• Soil and rock chip sampling confirmed uranium and REE anomalism over the granites east of
Silver King and northeast of Wolfram Hill and the surrounding erosional equivalents
• Pole-Dipole IP completed at Mt Irene confirmed a significantly larger chargeability anomaly than
at the historic Mt Irene mine.
Key Exploration Targets:
• Silver King: A structurally-controlled Cu-Pb-Zn-Ag polymetallic deposit focused on coincident
magnetic, IP chargeability and VTEM conductivity anomalies.
• Mt Irene: Similar style of mineralisation to Silver King, albeit at a smaller scale and with a more
pronounced linear structural control. IP chargeability anomalies defined during the 2024 surveys
indicate a potentially much larger sulphide system remains untested 500m west of the historic
mine.
• Copper Flats / Wolfram Hill: A structurally-controlled W-Cu-Pb-Zn-Ag prospect with an
extensive surface expression. A zone of moderate IP chargeability remains untested by drilling in
the eastern half of the prospect.
• Dumunzi: Coincident magnetic and gravity anomalies within a structural dilation zone interpreted
to be a multi-phase intrusive complex. The prospect is covered by a thin veneer of recent
sediments, remains undrilled and is a potential Luni-style, REE-related carbonatite system.
• Clark Mines: A cluster of three structurally-controlled polymetallic mineralized zones of similar
scale to the Mt Irene system. No modern exploration has been completed and the prospect
remains a priority target.
• Patmungala / Megalith: Megalith is a large, southerly plunging magnetic anomaly located at the
margin of the Ngalia Basin, a prime candidate for intrusion-related Cu-Au. Patmungala Cu and
Pb are small structurally-controlled occurrences and might represent distal fluid outflow zones
surrounding the Megalith target. Weak conductors were defined during the 2024 VTEM survey.
• Vaughan Springs: Fluorite mineralisation within a 300m long quartz-fluorite breccia zone.
RC/DD Drilling
Final assays were received for Litchfield's inaugural drilling campaign that tested the Silver King, Mt
Irene and Copper Flats / Wolfram Hill prospects (12 holes, 1,769m), Figure 12, Table 3.
15
Table 3. RC/DD drillhole collar information.
Figure 12. Drillhole collar locations for the 12 holes completed during the inaugural 2024 Litchfield
drilling program.
16
Drilling returned low- to moderate-grade intercepts at the Silver King and Mt Irene prospects including:
• LMD001, 15m @ 0.23% Cu, 0.31% Zn, 762ppm Pb, 4.8g/t Ag, 0.02g/t Au from 20m, including
2.25m @ 0.49% Cu, 0.35%Zn, 0.14% Pb, 16.7g/t Ag, 0.08 g/t Au from 20.75m.
• LMRD002, 2.1m @ 3.78% Zn, 0.93% Pb, 343ppm Cu, 5.79g/t Ag, 0.01g/t Au from 66.2m.
• LMRD003, 5.2m @ 0.14% Cu, 0.18% Pb, 0.21% Zn, 14.1 g/t Ag from 22.8m.
• LMRD004, 17m @ 2.47% Pb, 1.06% Zn, 15.7 g/t Ag from 49m, including 3m @ 11.84% Pb,
5.62% Zn, 0.1% Cu, 57.1 g/t Ag from 51m.
• LMRC010, 14m @ 0.37% Zn, 0.16% Cu, 0.05% Pb, 1.17 g/t Au from 21m.
The discovery of semi-massive and massive sulphides in LMRD004 (Figures 13, 14) was a significant
advancement in the understanding of the prospect and provided confidence leading into the airborne
VTEM survey that conductive sulphides exist within the project. Sulphide mineralisation at Silver King
remains open at depth and along strike. LMRC012, drilled to test the large western IP chargeability
anomaly at Mt Irene, deviated from the modelled target forcing abandonment of the hole, leaving the
compelling IP anomaly untested. A second drilling program was planned for November 2024, however,
unseasonal rain forced postponement and the priority target remains untested.
Figure 13. Schematic cross-section of LMRD004 (looking west), showing two mineralised intervals, both
above and below the redox zone.
17
Figure 14. A. Diamond Drill core of LMRD004 50.4 – 53.7m, showing zones of massive sulphide within
silica-sericite-altered and folded Lander Rock Formation. B. Close-up of cut core from red box in A
showing massive pyrrhotite-sphalerite-chalcopyrite cut by galena-sphalerite within strong silica-sericite-
altered Lander Rock Formation.
Dumunzi and Patmungala Ground Gravity Surveys
Ground gravity surveys were completed in July 2024 at the Dumunzi and Patmungala targets (total of
344 stations, 200m x 200m grid). At Dumunzi, ground gravity was completed to assess the interpreted
magmatic intrusive complex for density anomalies that might relate to sulphide or REE mineralisation.
Several density anomalies were identified that are broadly coincident with reversely magnetised zones
(Figure 15). 3D inversion modelling of magnetic and gravity data highlighted the geologically complex
nature of the prospect (Figure 16). Four 100m RC drillholes were planned to be drilled in November
2024, however, that program was postponed due to excessive rain with rigs and earthmoving equipment
being unavailable in December once the ground dried out.
At Patmungala, ground gravity was completed to assess the density characteristics and geometry of the
Megalith magnetic anomaly, specifically to help improve drillhole targeting of this deep magnetic target
(Figures 17, 18). Multiple residual gravity anomalies were identified to the north and east of the Megalith
magnetic anomaly, however, it remains unclear if there is a metallogenic connection with the deep-
seated magnetic anomaly. As with Dumunzi, the Patmungala area is covered by a thin veneer of recent
sediments (<10m) and cause of the density anomalies remains unclear.
18
Figure 15. Dumunzi RTP 1VD magnetic image overlain by BA267_Res500m_H_NEsun ground gravity
image showing the location of density anomalies within east-northeast linear trends with the largest
density body coincident with an interpreted structural dilational jog.
Figure 16. Dumunzi magnetic and density 3D inversion models showing the relationship between
different magnetic units within a structurally-complex zone.
19
Figure 17. Patmungala RTP magnetic image overlain by the BA267_Res500m_H_NEsun ground gravity
image showing 250k Mt Doreen interpreted structures, modelled density anomalies (red dashed
polygons) and the Patmungala magnetic anomaly that plunges northeast beneath EL31305.
Figure 18. Patmungala long section (looking north) showing the modelled gravity anomalies (orange
polygons) sitting above and peripheral to the deep magnetic anomaly (yellow polygon).
Lithostructural Interpretation
A detailed lithostructural interpretation of the Mt Doreen Project revealed a complex structural and
magmatic history, suggesting multiple mineralisation events, especially along key granite contacts linked
to hydrothermal fluid flow (Figure 19). The study, completed by PGN Geoscience, identified high-priority
targets previously untested due to shallow cover, which are now central to Litchfield's forward
exploration plans.
20
Figure 19. Lithostructural interpretation of the Mount Doreen tenement (EL31305).
VTEM Survey
A tenement-wide Versatile Time-domain Electromagnetic (VTEMTM
Max) survey was completed in
September 2024 (2,254 line km, 200m line-spacing). The survey identified five high priority conductors
with conductive responses typical of semi massive or massive sulphide accumulation, including four
untested by historic exploration (Figure 20). The strongest conductive response, and most indicative of
sulphides, is located at the Silver King prospect where it is coincident with magnetic and IP chargeability
anomalism. Weaker conductive anomalies were defined at Patmungala Pb, Patmungala Cu and Clark
Mines.
Moving Loop Ground EM (MLEM)
MLEM was completed at the Patmungala Cu (4 lines, 100m line-spacing, 3.2 line km) and Patmungala
Pb prospects (3 lines, 200m line-spacing, 2.7 line km) in late October 2024. Ground EM at Patmungala
Pb produced a weakly conductive, near-surface anomaly in the middle of the survey area (Figure 21).
The anomaly was modelled by Southern Geoscience Consultants and resulted in a series of six, poorly-
constrained, flat-lying, 300m x 50m, gently west-plunging plates approximately 70m below surface. Two
RC drillholes have been planned to test this conductive anomaly. At Patmungala Cu, ground EM
produced a weakly conductive anomaly in the northern third of the survey. Plate modelling produced a
poorly-constrained, shallow, flat-lying, 200m x 50m plate with a gentle westerly plunge.
21
Figure 20. Mt Doreen project RTP_SunN_Lin magnetic image showing the loc
Share your feedback
Discover