This announcement contains
inside information
23
September 2024
Neometals
Ltd
("Neometals" or "the
Company")
Barrambie Gold Exploration
Target
Highlights:
· Maiden
assessment completed on gold exploration potential at Barrambie
using historical data from previous explorers;
· Focus
since Barrambie acquisition in 2003 has been on the titanium and
vanadium deposit with gold potential not previously
examined;
· Barrambie Greenstone Belt ("BGB") historically produced 27,000 gold
ounces at 27.8g/t;
· Camp-scale gold potential with significant structural
corridors identified;
· Recent
Neometals grab and rock chip sample assays range from 5.1g/t to
44g/t Au and are consistent with historical mined
grades;
· Exploration Target along the 40km strike of BGB within
Neometals tenure is between 8Mt at an average grade of 1.3g/t Au
and 10.5Mt at an average grade of 2.3g/t Au, for an implied 335,000
ounces to 775,000 ounces gold; and
· Exploration Target considers a drill dataset across ten
prospects, observed mineralogical characteristics, various
geometries, dimensions and styles of known mineralisation and
current understanding of structural and lithological controls on
the location of mineralisation.
Sustainable process technology
developer, Neometals Ltd (ASX: NMT & AIM: NMT) ("Neometals" or "the Company"), is pleased to provide an
update on the potential gold endowment at the Company's 100% owned
Barrambie Project ("Barrambie"), in Western
Australia.
Barrambie is not only one of the
world's highest-grade titanium deposits1 but is also
highly prospective for gold mineralisation, with minimal gold
exploration occurring since the 1970s. Neometals' ~706
km2 of tenure encompasses approximately 40km of strike
of the BGB, the majority of which remains under-explored for gold
(see Figure 1).
______________________________
[1]
See ASX
announcement 15/05/2023 titled "Barrambie Titanium Project PFS and
Ore Reserve Update"
Figure 1 - Location of the Barrambie Project with respect to major
Greenstone Belts of the Yilgarn.
A new geological model has been
developed for the broader Yilgarn greenstone belt that contains the
BGB ("GSB"), and reflects
camp-scale gold prospectivity, that is, a multi-deposit portfolio
of mineralisation of various dimensions and styles, such as those
commonly found in the Yilgarn, including at the proximal of Gum
Creek GSB, Meekatharra-Mount Magnet GSB and Sandstone GSB (see
Figure 1 & Figure 2).
The model is framed around
well-defined structural corridors and stratigraphic controls and is
informed by substantial historical datasets, new structural
interpretation of reprocessed geophysics, field observations and
recent sampling conducted by Neometals (April 2024 see Appendix 3),
which returned grades consistent with historic mined grades,
including:
BGR03
- 5.1 g/t Au
|
BGR15
- 5.9 g/t Au
|
BGR05
- 44.0 g/t Au
|
BGR43
- 5.5 g/t Au
|
BGR06
-17.3 g/t Au;
|
|
The historic dataset of over 1,500
drillholes (see Appendix 1 & 2) includes multiple, high-grade
intersections including2:
Hole
B194
- 4m at 6.1 g/t Au from 25
|
Hole
I084
- 10m at 9.1 g/t Au from 10m
|
Hole
BR064 -
6m at 11.8 g/t Au from 18m
|
Hole
SG131 -
11m at 15.9 g/t Au from 69m
|
Hole
I043
- 8m at 21.8 g/t Au from 8m
|
|
An Exploration Target has been calculated along the 40km strike of
BGB within Neometals' tenure from between 8Mt, at an average grade
of 1.3g/t Au, and 10.5Mt at an average grade of 2.3g/t Au, for an
implied 335,000 ounces to 775,000 ounces gold.
Neometals Managing Director, Chris Reed,
says:
"The excellent work of our technical
team in compiling, validating and analysing historic exploration
data has proven we have underestimated the gold potential of
perhaps the only remaining greenstone terrain in the Yilgarn with
no exploration effort in the last 20 years. It presents a rare
opportunity to uncover a substantial gold camp, and we will explore
the most effective strategy and corporate structure to capitalise
on the gold potential. We will continue with our divestment
strategy in relation to the titanium/vanadium
resources."
Figure 2 - Barrambie Project in relation to proximal camp-scale gold
projects and greenstone belts.
______________________________
2 Grades are length-weighted
averages. No top cut applied. See Appendix 1 & 2 for
details.
Cautionary Statement
The Competent Person cautions that
certain Exploration Results3 contained within this
release have been extracted from historic DMIRS WAMEX4
annual reports by the previous historical operators. Further
exploration and evaluation may affect confidence in these results
under the JORC 2012 standards. Nothing has come to the attention of
Neometals or its Competent Person that cause them to question the
accuracy or reliability of the previously reported drill results
and work.
The source reports (DMIRS WAMEX) are
identified in the JORC Table 1 (Appendix 4) for all historical
exploration reports used to quantify the potential gold endowment
at Barrambie. These can be freely accessed by the public at
https://geoview.dmp.wa.gov.au/GeoView
using the unique A-number for each
report.
The Company has undertaken desktop
evaluation of the work completed. However, it has not
comprehensively validated the results and therefore is not to be
regarded as reporting, adopting, or endorsing these
results.
The April 2024 grab/rock chips
results (Appendix 3) included in this report were completed as a
first pass validation of the historical grades compiled to
date.
Background
The original Barrambie mining lease
was granted in 1990 and Neometals has owned 100% of Barrambie since
2003, through its 100% owned subsidiary Australian Titanium Pty Ltd
("Australian Titanium").
Barrambie is located 750 kilometres north-east of Perth (see Figure
1).
The Company's historic and recent
focus on vanadiferous titanomagnetite ("VTM") exploration has resulted in a
lack of systematic, modern gold exploration along the Barrambie
Greenstone Belt.
In January 2024, Neometals
initiated a detailed search of the DMIRS
WAMEX database that identified and acquired 111 historic reports
relating to gold exploration. Data from the reports were compiled
with existing digital data and a new gold exploration database
developed. The database includes surface geochemical sampling and
drill hole data. Surface maps and historical workings were also
geo-registered and incorporated with the digital data to produce
geological and numeric models.
The drillhole database compiled from
publicly available data comprises AC, RAB, RC5 and some diamond
drill holes but no diamond core or drill samples remain. Over 2,000
drill holes were compiled, 1,547 of which have gold assays and only
10% of these have been drilled to depths greater than 60m
(see Figure 5 and
Appendices 1 & 2). The historic drilling is spread across 10
prospects, however, most drilling is clustered around the two main
gold centres, Ironclad and Barrambie Ranges, leaving much of
Barrambie under-drilled and significant strike lengths totally
untested by drilling.
______________________________
3 As defined by the JORC Code,
Clause 18.
4 Department of Energy, Mines,
Industry Regulation and Safety, Western Australia. WAMEX is the
Western Australian Mineral
Exploration Report database.
5 Abbreviations refer to
aircore, rotary air blast and reverse circulation drill
techniques.
Substantial historic surface
geochemistry was also acquired. However, many gaps in the data
leave the majority of the prospective greenstones ineffectively
covered.
Existing geophysics data was
reprocessed to highlight the potential structures associated with
the known historical gold occurrences. This reprocessed data was
then reinterpreted with a series of conjugate structural corridors
being identified as being significant.
Comparison of the structural
interpretation with the surface geochemical data and drilling data
sets has revealed many data gaps and hence areas requiring
follow-up exploration.
Exploration Target
The Exploration Target along the
40km strike of the BGB within Neometals tenure is between 8Mt at an
average grade of 1.3g/t Au and 10.5Mt, at an average grade of
2.3g/t Au, for an implied 335k ounces to 775k ounces
gold.
The
Competent Person cautions that the potential quantity and grade of
the Exploration Target is conceptual in nature, that there has been
insufficient exploration to estimate a Mineral Resource and that it
is uncertain if further exploration will result in the estimation
of a Mineral Resource.
The Competent Person has relied on,
and is basing this Exploration Target on, a combination of data
listed below and detailed in this report and appendices:
· geological setting of Barrambie within the under-explored
BGB;
· historic mining data which demonstrates the existence of high
tenor gold mineralisation along the length of the greenstone
belt;
· historic drill data, albeit restricted in extent and at least
partially ineffective, demonstrates continuity of Au mineralisation
in multiple (10) locations;
· historic surface geochemical data, albeit incomplete coverage,
demonstrates Au anomalism along the length of the greenstone
belt;
· observed and recorded geological descriptions demonstrates Au
mineralisation of various styles (shear/vein and stockwork) and
lithological hosts (mafic intrusive and sediment);
· recent
grab and rock chip sampling (April 2024) which validates the tenor
of gold mineralisation at the Barrambie Ranges and Sugarstone
centres and demonstrate the potential of new, un-drilled,
structures;
· reprocessed geophysics and new structural interpretation
showing multiple structural corridors and potential structural
settings; and,
· camp-scale geological/exploration concept.
The camp-scale concept describes
exploration potential similar to that found in other greenstones
belts of the Yilgarn, whereby multiple deposits of various
magnitudes (in terms of contained Au ounces) contribute to a total
endowment for Barrambie, simplified in Figure 3. Examples of
camp-scale gold endowment within the Yilgarn include producing and
advanced projects at historic gold mining centres at Gum Creek GSB,
Meekatharra-Mount Magnet GSB and Sandstone GSB (see Figure
2).
Figure 3 - Simplified representation of
deposit endowment that may be expected in a typical camp-scale
project.
The Exploration Target is based around a similar number of
currently known prospects and their dimensions within top 200m
below surface, noting the future targets are likely to include
additional new prospects and depth extensions.
Neometals used the information
outlined in this announcement to guide interpretations of drilled
prospects and generate volumes with the assistance of implicit
modelling software. For these deposits, assumptions of potential
extensions to mineralisation were applied to derive the Exploration
Target tonnage range. The quantity and quality of the drill assay
dataset contained with the generated solids are insufficient to
provide reliable grade estimates of future mineralisation. Hence
assumptions of future grade ranges have been made.
Table 1: Current prospects:
current modelling & Exploration Target
Prospect
|
Current numeric modelling
(to
100m below surface)
|
Exploration Target
(to 200m below surface)
|
Commentary
|
Lower Range
|
Upper Range
|
Lower Range
|
Upper Range
|
kt
|
g/t
|
kt
|
g/t
|
kt
|
g/t
|
kt
|
g/t
|
Barrambie Ranges
|
610
|
1.4
|
1,200
|
2.9
|
1,850
|
1.3
|
2,250
|
2.3
|
Historic mining grade 28.96g/t;
>1km contact related shear-zone trend; associated with
intersection of NE and NW structural corridors; poorly drilled
tested along strike & depth; intercept 4m @6.06g/t (hole B194)
to be followed-up (refer Appendix 1 and 2)
|
Ironclad High Range
|
500
|
0.7
|
1,010
|
1.4
|
1,600
|
1.3
|
2,000
|
2.3
|
Drilled along 300m strike but
under-explored below 20m. Contact related shear-zone trend
associated with intersection of NE and NW structural corridors;
Indications of stacked lodes 50m wide; intercepts include 8m @
5.11g/t from 69m (hole ICRC006) (refer Appendix 1 and 2)
|
Mystery & Luptons
East
|
480
|
0.8
|
970
|
1.6
|
1,600
|
1.3
|
1,800
|
2.3
|
Broad 120m of stacked
mineralisation, untested along strike and down-dip; contact related
shear-zone trend associated with intersection of NE and NW
structural corridors; intercepts include 11m @ 15.9g/t from 69m
(hole SG131, refer Appendix 1 and 2)
|
Mystery - Sugarstone
|
No Model
|
|
No Model
|
|
300
|
1.3
|
500
|
2.3
|
750m zone under-explored; contact
related shear-zone trend associated with intersection of NE and NW
structural corridors; 6m @ 11.8g/t from 18m (holeBR064) to be
followed-up (refer Appendix 1 and 2)
|
Ironclad-Mystery
|
No Model
|
|
No Model
|
|
300
|
1.3
|
500
|
2.3
|
500m strike potential un-tested;
prominent mag-high trend; contact related shear-zone trend
associated with intersection of NE and NW structural
corridors
|
Silver Lining
|
410
|
0.5
|
820
|
1
|
1,300
|
1.3
|
1,550
|
2.3
|
Potential northern extension of
Barrambie Ranges trend; mineralisation not closed off along strike
and down dip
|
Woodies
|
180
|
0.6
|
370
|
1.2
|
550
|
1.3
|
750
|
2.3
|
Soil Au anomaly in sediments
associated with regional NNW structural trend; 1200m strike;
intercept 17.0m @ 5.44g/t to be followed-up (WRB065, refer Appendix
1 and 2)
|
Lost Chance
|
72
|
0.9
|
140
|
1.8
|
125
|
1.3
|
300
|
2.3
|
Likely southern extension of
Ironclad; northwest trend; sediment-gabbro contact; open all
directions
|
Inheritance
|
54
|
0.7
|
110
|
1.4
|
125
|
1.3
|
300
|
2.3
|
Potential northern extension of
Errolls; mafic-granite contact; intersection of N & NW
structural corridors; open in all directions
|
Kismet
|
29
|
0.8
|
59
|
1.6
|
100
|
1.3
|
250
|
2.3
|
Shear within schistose granite and
BIF; similar gabbro-granite contact position south of Errolls;
associated with intersection of N, NE and NW structural corridors;
located to SW along Mystery-Ironclad-Sugarstone NE corridor; open
all directions
|
Sugarstone
|
3
|
0.5
|
6
|
1
|
75
|
1.3
|
150
|
2.3
|
Historic mining grade reportedly
22.9g/t; north-south quartz reef; steep west dip; associated with
intersection of N, NE and NW structural corridors; gabbro-sediment
contact
|
Lilyveil
|
2
|
0.5
|
5
|
0.9
|
75
|
1.3
|
150
|
2.3
|
Likely extension of Barrambie
Ranges; proximal N-NW & northwest corridor; sediment-gabbro
contact; open all directions
|
Total
|
2,340
|
0.9
|
4,690
|
1.8
|
8,000
|
1.3
|
10,500
|
2.3
|
|
Figure 4 - Barrambie Project tenure,
simplified geology and historic production
centers.
Geological Setting
The Project is situated within the
Archaean BGB, which is a narrow, north-northwest trending
greenstone belt in the northern Yilgarn Craton (see Figure 1,
Figure 2 & Figure 4). The linear BGB is about 60 km long (40 km
of which is contained in the Barrambie tenements) and attains a
maximum width of about 4 km. It is flanked by banded gneiss and
granitoids. The large layered, mafic intrusive Barrambie Igneous
Complex (which hosts the Ti-V deposit) has intruded into and is
conformable with the general trend of the enclosing Greenstone
Belt. From aeromagnetic data and regional geological mapping, it
appears that this layered sill complex extends over a distance of
at least 25 km and varies in width from 500m to 1,700m.
The sill is comprised of
anorthositic magnetite-bearing gabbros that intrude a sequence of
metasediments, banded iron formation, metabasalts and metamorphosed
felsic volcanics of the BGB. The metasediment unit forms the
hanging-wall to the layered sill complex.
Exposure is poor due to deep
weathering, masking by laterite, widespread cover of transported
regolith (wind-blown and water-borne sandy and silty clay),
laterite scree and colluvium. Where remnant laterite profiles occur
on low hills, there is ferricrete capping over a strongly weathered
material that extends down to depths of 70m. This factor had led to ineffective
historical exploration.
Gold occurrences are generally
associated with cross-cutting faults particularly proximal to
gabbro contacts with the mafic metasediments to the east, but also
with granites on the western side of the GSB (see Figure
4).
Historic Gold Mining
Gold was discovered at Barrambie in
1905 during the construction of the Rabbit Proof Fence. Subsequent
prospecting opened four main gold centres in the Barrambie area
(see Figure 4):
· Barrambie Centre (including the Barrambie Ranges historical
underground gold mines)
· Scheelite Centre6 (including the Dohertys gold
mine)
· Sugarstone Centre (including historic gold mines Ironclad,
Sugarstone and Mystery)
· Errolls Centre6 (including the Legacy gold
mine)
Underground mining occurred
predominantly in the first half of the 20th century with
minor production extending through to 1985. The total production historically reported to the Mines
Department from the four mining centres totalled 27,294 ounces of gold from 34,233 long tons of treated ore, at
an average grade of 24.8g/t Au (Table
2).
______________________________
6 The Scheelite Centre &
Errolls mining centre is not on Neometals
tenements.
Mines Department reports note that
gold mineralisation was structurally controlled with various styles
present:
· In
north-south shear-zones at Barrambie Ranges, Sugarstone and
Errolls;
· Stockwork of quartz veins at Sugarstone and Barrambie centers.
Mineralisation is associated with shears striking 120° and dipping
steeply to the east, as well as shears striking 050-060° with flat
to moderately northwest or southeast dips;
· Infilled quartz vein stockworks within shear zones of the
vanadium-titanium Barrambie Sill (at Sugarstone and Barrambie centers); and,
· Infilled quartz-filled ferruginous saddle reef (or drag-fold)
structures (Scheelite / Dohertys).
Table 2: Historic Gold Production by
production centre, Barrambie Greenstone Belt
Location
|
Years
|
Tonnes Ore
|
Au
(g/t)
|
Gold (oz)
|
Errolls
|
1906 - 1919
|
10,141
|
19.01
|
6,197
|
Barrambie
|
1907 - 1966
|
16,530
|
28.96
|
15,390
|
Sugarstone
|
1908 - 1913
|
5,270
|
22.9
|
3,880
|
Scheelite/Dohertys
|
1955 - 1985
|
2,292
|
24.79
|
1,827
|
Total
|
|
34,233
|
|
27,294
|
Historic Drilling data
Data for over 57,000 metres of
drilling (not necessarily focused on gold targets) from over 2,000
drill holes has been compiled. Drilling data compiled from historic
reports is summarised in Table 3 & Table 4 and Figure 5 and
Appendix 1 & 2.
Table 3: Compiled drill
data
Hole Type
|
#
Holes
|
Total Metres
|
DD
|
9
|
971.32
|
RAB
|
1,622
|
37,984.50
|
RC
|
419
|
17,188.96
|
UK
|
21
|
1,047.00
|
Total
|
2,071
|
57,192
|
Data was acquired from historic
WAMEX reports in digital and non-digital formats. RC and diamond
drilling is restricted to more advanced gold prospects, such as
Barrambie Ranges, Sugarstone-Mystery, Kismet, and
Errolls.
Its significant to note that the
majority of this drilling is less than 60m deep. It is also
significant that the Project lacks the broad cover of RAB/AC
drilling when compared to other greenstone belts.
The Competent Person cautions that
the historical drill intercepts may not have been reported in
accordance with the JORC Code or its precedents and considers these
to be indicative of, but not absolute measures of, the presence and
tenor of mineralisation.
Table 4: Summary drill data
compiled from historic reports
Company
|
Years
|
Prospects
|
|
RAB/RC
|
|
RC
|
|
DD
|
Samson Exploration NL
|
1987 to 1995
|
Barrambie Ranges, Dohertys, Errolls,
General Kuropatkin, Mystery, Sugarstone, White Dingo
|
751 holes
|
Combination of 1m and 2m and 5m
composites Combination of aqua regia and FA
|
340 holes
|
1m Samples by spearing
AR & FA checks
|
6 holes
|
1/4 core for Fire assay, half for
met testing, 1/4 retained
|
Regional Resources NL / Miralga Mining ML
|
1986 to 1988
|
Errolls
|
|
|
11 holes
|
1m samples, riffle split to 2kg
Au50 Fire Assay
|
|
|
Dominion Mining Limited
|
1991-93
|
Errolls North, Sugarstone
|
261 holes
|
Bottom of hole samples
Au & multielement
|
|
|
|
|
Black Swan Gold Mines Ltd
|
1992
|
Ironclad, Errolls,
Dohertys
|
147 holes
|
1m 1kg samples from mechanic
splitter on rig
|
10 holes
|
No sampling details
|
|
|
Tindals Gold Mines NL
|
1995
|
Barrambie, Floodway East,
Ironclad
|
43 holes
|
1m samples, 4m composites
Minlabs AR AAS Au V Cu
|
|
|
|
|
Newcrest Mining Limited
|
1996-7
|
Errolls
|
405 holes
|
4m comps to Genalysis
Au by B/ETA, As and Cu by B/AAS
|
|
|
|
|
Acclaim Exploration NL
|
1996-97
|
Barrambie Mine East, Errolls,
Ironclad, Silver Lining, Gossan Valley, Homestead, Woodies,
Whitewell
|
211 holes
|
1m samples, 4m comp by scoop
Au and multielement
|
35 holes
|
1m samples
Au, Pt, Pd
Selected samples for multi-element & screen fire
|
|
|
Golden West Resources
|
2006, 2008-9
|
Dohertys
|
9 holes
|
1m samples
Au fire assay
|
6 holes
|
1m intervals
Selected samples repeated using fire assay
|
|
|
Figure 5 - Drill hole location plan for
compiled drilling dataset.
Historic Surface Geochemical Data
All surface geochemical data were
compiled and plotted from digital and non-digital sources
(see Figure 6 and Table 5).
Data consists of AUGER, BLEG, GRAB, LAG, ROCK, SOIL and STREAM
sampling.
While surface geochemical coverage
appears expansive, the Competent Person considers the main
structures, particularly in the Barrambie Ranges and
Ironclad/Sugarstone centres, to be under-surveyed. Similarly, field
observations identify paleochannels west and east of the Barrambie
VTM trend and historic soil sampling is considered ineffectual. The
existing geochemical coverage is reduced by ~20% when historic
sampling over paleochannels is removed.
Historical soils programs were
restricted to historical tenement boundaries and not optimally
located for potential gold structures.
Table 5: Compiled surface
geochemical data
Sample Type
|
Number of Samples
|
AUGER
|
428
|
ROCK
|
35
|
STREAM
|
258
|
GRAB
|
403
|
SOIL
|
7,064
|
BLEG
|
15
|
LAG
|
75
|
Total
|
8,278
|
Figure 6 - Compiled surface geochemical
data.
Examples of Current Gold Prospects
The Mystery and Lupton's East
prospects (at the Sugarstone mining center) have a strike length
of 180m x 120m wide
and is unconstrained along strike and down dip, plus with potential
for parallel loads. Mystery was mined from 1908 to 1912 to a depth
of 67m. It had five levels and Mines Department records indicate
that it produced 4,428t for 3,413oz at an average grade of 23.6g/t
au. Best drilling result is SG131 - 11m @
15.9g/t Au from 69m (WAMEX report:
A22584).
The Ironclad prospect (Sugarstone
mining center) has a strike length of 600m x 50m wide and is
interpreted as a series of stacked pods of mineralisation plunging
to the northwest. Ironclad was a shallow underground mine completed
in 1910 which Mines Department records indicate produced 22t for
10oz, at an average grade of 14.1g/t Au.
Best drilling result
I043 - 8m @ 21.78g/t Au from 8m (WAMEX report:
A37144) although it remains under-drilled
below depths of 20m. Deeper intercepts requiring follow-up
include (WAMEX report:
A48813):
· ICRC006 8m @ 5.11g/t Au from 88m;
· ICRC004 9m @ 2.56g/t Au from 76m, and;
· ICRC002 6m @ 2.55g/t Au from 74m.
Sugarstone was mined in 1909 from two separate lodes: one with a 30m long
open pit to the west side and a second underground mine that went
down 30 metres to the east of the pit.
Lost Chance prospect (Sugarstone
mining center) has a strike length of 153m and is open along strike
and down dip. Best drilling result BR064 -
6m @ 11.8g/t Au from 18m (WAMEX report:
A16272).
Barrambie Ranges prospect (at the
Barrambie mining center) is a shear hosted
quartz vein in felsic volcanics east of the Barrambie Mining Lease
M57/173-I. It remains poorly drilled along strike with best
intercept of 4m at 6.06g/t (hole B194) yet to be
followed-up.
The extent of historical workings
suggest the northern area is less extensively mined underground.
Mines Department records indicate production of 15,101oz at an
average grade of 29.2g/t Au to a depth 100m from surface over 3
levels. Rock chips taken in April 2024 (see section below) support
the grade and tenure of mineralisation reported to have been mined
at Barrambie Ranges:
· BGR05
- 44.0 g/t Au grab sample from the mullock dump of the Golden Hill
shaft. This is indicative of the high grades mined
underground;
· BGR06
- 17.3 g/t Au an important sample as it is taken from in situ
outcropping sheared basalt with no obvious quartz veining as would
be expected for these grades. This sample shows that mineralisation
extends beyond the quartz veining into the broader, host-shear
zone.
Geophysics Reprocessing and Interpretation, Neometals
2024
In April 2024 Neometals had the
existing geophysical datasets reprocessed. These were of good
quality but had originally been processed to highlight the
Barrambie VTM style of mineralisation. They were reprocessed to
highlight the potential structures associated with the existing
historical gold occurrences.
Once reprocessed, a consultant
structural geologist completed a reinterpretation of the dataset.
Note this interpretation is a first-pass undertaking and requires
follow-up investigation and comparison with other datasets to
increase the reliability of the location of interpreted
features.
While gold mineralisation favours
locally north-south oriented contacts/structures, the consultant
identified a series of conjugate structural corridors with north,
northwest and northeast trends (Figure 7). These features may
represent long-lived structures and potential zones of reactivation
and fluid flow during orogenesis, and thus are of interest for
continued exploration, particularly in locations where the various
corridors intersect.
Comparison of the structural
interpretation with the surface geochemical data and inground
drilling data sets shows how under explored the tenement package
remains in terms of gold exploration.
Figure 7 - Interpretation of structural
corridors based on re-processed geophysical
datasets.
Surface Sampling, Neometals 2024
In April 2024, grab and rock chip
sampling was completed over several prospects, historical workings
and structural targets to verify historic data and test
under-explored trends (Figure 8). In total, 43 samples were
collected with the descriptions and assay results reported in
Appendix 3.
Significant assays
include:
· BGR01
- 2.4 g/t Au;
· BGR02
- 3.67 g/t Au;
· BGR03
- 5.1 g/t Au;
· BGR05
- 44.0 g/t Au;
· BGR06
- 17.3 g/t Au;
· BGR15
- 5.9 g/t Au, and;
· BGR43
- 5.5 g/t Au.
These rock chips successfully
validate the tenor of gold mineralisation at the Barrambie Ranges
and Sugarstone centres. BGR06 which returned 17.3 g/t Au from in
situ un-veined, basalt-hosted shear, is of importance as it
indicates the exploration potential of the broader shear
zone.
Rock chips BGR01 to BGR03 also show
the potential of new, parallel, north westerly structures south of
the Barrambie Ranges and Sugarstone centres where outcropping
quartz veins and a shallow working occur which have never been
followed-up with drilling or appropriate surface geochemical
sampling.
Figure 8 - Surface sample locations
with significant assay grades, Neometals 2024.
Recommendations
The potential quantity and grade of
the Exploration Target is conceptual in nature and will require a
systematic exploration effort over number of years to verify and
convert to a Mineral Resource. Initial exploration in the next term
of the licence will focus on verification and extension of the
historic data, including:
· twin-hole drilling to verify the location and tenor of gold
mineralisation identified in historic data;
· extension of the surface geochemistry sampling to ensure key
structural and lithological positions have appropriate
coverage;
· analysis for gold and pathfinder elements associated with
large scale, orogenic gold mineralisation; and
· follow-up drill testing of priority targets.
Authorised on behalf of Neometals by
Christopher Reed, Managing Director.
The
Competent Person cautions that the potential quantity and grade of
the Exploration Target is conceptual in nature, that there has been
insufficient exploration to estimate a Mineral Resource, and that
it is uncertain if further exploration will result in the
estimation of a Mineral Resource.
The
Competent Person further cautions that exploration data relied on
for this Exploration Target are historic and have not or may not
have been previously reported under the JORC Code or any of its
precedents and considers that these are indicative and not absolute
measures of the presence of gold mineralisation.
- ENDS
-
For more information, please
contact:
Neometals Ltd
|
|
Chris Reed, Managing Director &
Chief Executive Officer
|
+61 8 9322 1182
|
Jeremy McManus, General Manager - IP
& IR
|
+61 8 9322 1182
|
Cavendish Capital Markets Ltd - NOMAD &
Broker
|
|
Neil McDonald
|
+44 (0)131 220 9771
|
Peter Lynch
|
+44 (0)131 220 9772
|
Adam Rae
|
+44 (0)131 220 9778
|
|
|
About Neometals
Neometals facilitates sustainable
critical material supply chains and reduces the environmental
burden of traditional mining in the global transition to a circular
economy.
The Company is commercialising a
portfolio of sustainable processing solutions that recycle and
recover critical materials from high-value waste
streams.
· Neometals' core focus is its patented, Lithium-ion Battery ("LiB")
Recycling technology (50% NMT), being commercialised
in a 50:50 incorporated JV (Primobius GmbH) with 150-year-old
German plant builder, SMS group GmbH. Primobius is supplying
Mercedes-Benz a 2,500tpa recycling plant and operates its own LiB
Disposal Service in Germany. Primobius' first 21,000tpa commercial
plant will be offered to Stelco under an existing technology
licence for North America.
Neometals is developing two advanced
battery materials technologies for commercialisation under
low-risk, low-capex technology licensing business
models:
· Lithium Chemicals (70%
NMT) - Patented ELi™ electrolysis
process, co-owned 30% by Mineral Resources Ltd, to produce battery
quality lithium hydroxide from brine and/or hard-rock feedstocks at
lowest quartile operating costs. Pilot scale test work and
Engineering Cost Study update planned for completion in DecQ 2024;
and
· Vanadium Recovery (100%
NMT) - Patent pending
hydrometallurgical process to produce high-purity vanadium
pentoxide from steelmaking by-product ("Slag") at lowest-quartile
operating cost and carbon footprint.
For further information, visit: www.neometals.com.au.
Appendix 1
Collar Details of Drill Holes with Significant Gold
Intercepts
Intercepts based on a minimum intercept of 10 gram*meters,
0.6g/t Au lower cut off and a maximum internal dilution of
1m.
Prospect
|
WAMEX
Report #
|
Hole
Type
|
Hole
ID
|
Easting
MGA94 Zone 50
|
Northing
MGA94 Zone 50
|
RL
|
Dip
(Deg)
|
Azimuth
(Deg)
|
Depth
(m)
|
BARRAMBIE
|
A44301
|
RAB
|
BRB186
|
703807
|
6974103
|
499
|
-60
|
90
|
63
|
BARRAMBIE
SHEAR
|
A23650
|
RC
|
B194
|
710089
|
6964890
|
491
|
-60
|
259
|
30
|
B207
|
710124
|
6964634
|
494
|
-60
|
259
|
21
|
COVE
|
A16272
|
RAB
|
BR001
|
709730
|
6963271
|
535
|
-60
|
0
|
74
|
INHERITANCE
|
A22658
|
RC
|
NE1
|
701475
|
6977706
|
489
|
-60
|
84
|
38
|
IRONCLAD
|
A16272
|
RAB
|
BR048
|
704735
|
6971532
|
530
|
-60
|
0
|
52
|
BR053
|
705276
|
6971034
|
530
|
-60
|
0
|
40
|
BR054
|
705254
|
6971022
|
530
|
-60
|
0
|
40
|
BR064
|
705457
|
6970562
|
514
|
-60
|
0
|
49
|
BR099
|
705300
|
6970991
|
530
|
-60
|
0
|
50
|
A23650
|
RC
|
SG164
|
705288
|
6971046
|
511
|
-60
|
125
|
51
|
SG165
|
705267
|
6971059
|
511
|
-60
|
125
|
51
|
SG166
|
705246
|
6971074
|
511
|
-60
|
125
|
51
|
SG167
|
705225
|
6971088
|
510
|
-60
|
125
|
51
|
SG168
|
705204
|
6971102
|
509
|
-60
|
125
|
51
|
A26799
|
UK
|
SG179
|
705219
|
6971118
|
509
|
-60
|
125
|
50
|
SG180
|
705194
|
6971130
|
508
|
-60
|
125
|
50
|
SG183
|
705242
|
6971090
|
510
|
-60
|
125
|
50
|
Prospect
|
WAMEX
Report #
|
Hole Type
|
Hole ID
|
Easting
MGA94 Zone 50
|
Northing
MGA94 Zone 50
|
RL
|
Dip
(Deg)
|
Azimuth (Deg)
|
Depth
(m)
|
BARRAMBIE
|
A44301
|
RAB
|
BRB186
|
703807
|
6974103
|
499
|
-60
|
90
|
63
|
BARRAMBIE SHEAR
|
A23650
|
RC
|
B194
|
710089
|
6964890
|
491
|
-60
|
259
|
30
|
B207
|
710124
|
6964634
|
494
|
-60
|
259
|
21
|
COVE
|
A16272
|
RAB
|
BR001
|
709730
|
6963271
|
535
|
-60
|
0
|
74
|
INHERITANCE
|
A22658
|
RC
|
NE1
|
701475
|
6977706
|
489
|
-60
|
84
|
38
|
IRONCLAD
|
A16272
|
RAB
|
BR048
|
704735
|
6971532
|
530
|
-60
|
0
|
52
|
BR053
|
705276
|
6971034
|
530
|
-60
|
0
|
40
|
BR054
|
705254
|
6971022
|
530
|
-60
|
0
|
40
|
BR064
|
705457
|
6970562
|
514
|
-60
|
0
|
49
|
BR099
|
705300
|
6970991
|
530
|
-60
|
0
|
50
|
A23650
|
RC
|
SG164
|
705288
|
6971046
|
511
|
-60
|
125
|
51
|
SG165
|
705267
|
6971059
|
511
|
-60
|
125
|
51
|
SG166
|
705246
|
6971074
|
511
|
-60
|
125
|
51
|
SG167
|
705225
|
6971088
|
510
|
-60
|
125
|
51
|
SG168
|
705204
|
6971102
|
509
|
-60
|
125
|
51
|
A26799
|
UK
|
SG179
|
705219
|
6971118
|
509
|
-60
|
125
|
50
|
SG180
|
705194
|
6971130
|
508
|
-60
|
125
|
50
|
SG183
|
705242
|
6971090
|
510
|
-60
|
125
|
50
|
SG184
|
705220
|
6971104
|
509
|
-60
|
125
|
50
|
SG185
|
705198
|
6971117
|
509
|
-60
|
125
|
50
|
SG187
|
705230
|
6971101
|
510
|
-90
|
0
|
50
|
SG188
|
705255
|
6971067
|
511
|
-90
|
0
|
50
|
SG190
|
705225
|
6971087
|
510
|
-90
|
0
|
47
|
SG191
|
705313
|
6971016
|
513
|
-60
|
125
|
50
|
SG192
|
705292
|
6971030
|
512
|
-60
|
125
|
50
|
SG194
|
705253
|
6971056
|
511
|
-60
|
125
|
50
|
A37144
|
RC
|
I013
|
705192
|
6971135
|
508
|
-60
|
60
|
20
|
I018
|
705178
|
6971138
|
508
|
-60
|
60
|
20
|
I039
|
705244
|
6971083
|
510
|
-60
|
60
|
20
|
I043
|
705249
|
6971074
|
511
|
-60
|
60
|
20
|
I047
|
705254
|
6971065
|
511
|
-60
|
60
|
20
|
IRONCLAD
|
A37144
|
RC
|
I069
|
705199
|
6971133
|
508
|
-60
|
60
|
20
|
I070
|
705189
|
6971128
|
508
|
-60
|
60
|
20
|
I081
|
705259
|
6971079
|
511
|
-60
|
240
|
20
|
I084
|
705339
|
6971010
|
513
|
-60
|
158
|
20
|
I093
|
705242
|
6971083
|
510
|
-90
|
0
|
20
|
I094
|
705245
|
6971083
|
510
|
-90
|
0
|
20
|
I098
|
705242
|
6971077
|
510
|
-90
|
0
|
20
|
I099
|
705245
|
6971078
|
510
|
-90
|
0
|
20
|
I100
|
705247
|
6971080
|
511
|
-90
|
0
|
20
|
I101
|
705250
|
6971081
|
511
|
-90
|
0
|
20
|
I102
|
705253
|
6971083
|
511
|
-90
|
0
|
20
|
I104
|
705246
|
6971073
|
511
|
-90
|
0
|
20
|
I105
|
705251
|
6971076
|
511
|
-90
|
0
|
20
|
I106
|
705248
|
6971075
|
511
|
-90
|
0
|
20
|
I107
|
705254
|
6971077
|
511
|
-90
|
0
|
20
|
I108
|
705256
|
6971079
|
511
|
-90
|
0
|
20
|
I111
|
705252
|
6971071
|
511
|
-90
|
0
|
20
|
I115
|
705257
|
6971062
|
511
|
-90
|
0
|
20
|
I118
|
705260
|
6971063
|
511
|
-90
|
0
|
20
|
I122
|
705256
|
6971067
|
511
|
-90
|
0
|
20
|
I125
|
705255
|
6971072
|
511
|
-90
|
0
|
20
|
A48813
|
RC
|
ICRC002
|
705123
|
6971166
|
507
|
-60
|
60
|
104
|
ICRC004
|
705154
|
6971128
|
507
|
-60
|
60
|
104
|
ICRC006
|
705167
|
6971099
|
508
|
-60
|
60
|
104
|
ICRC007
|
705185
|
6971063
|
509
|
-60
|
60
|
104
|
ICRC008
|
705160
|
6971049
|
508
|
-60
|
60
|
110
|
KISMET
|
A52148
|
AC
|
SSTA33
|
703162
|
6969282
|
510
|
-60
|
0
|
42
|
SSTA35
|
703162
|
6969262
|
510
|
-60
|
0
|
42
|
RAB
|
SSTR38
|
703151
|
6969297
|
509
|
-60
|
0
|
35
|
LILYVEIL
|
A16272
|
RAB
|
BR037
|
710409
|
6962218
|
530
|
-60
|
0
|
26
|
MYSTERY
|
A22584
|
RC
|
SG131
|
704724
|
6971496
|
505
|
-60
|
75
|
93
|
SILVER LINING
|
A49171
|
RAB
|
BERB085
|
709663
|
6965452
|
539
|
-60
|
90
|
71
|
A52165
|
RAB
|
SLRB029
|
709751
|
6965502
|
534
|
-60
|
88
|
64
|
SLRB034
|
709733
|
6965402
|
535
|
-60
|
88
|
65
|
RC
|
SLRC002
|
709615
|
6965450
|
551
|
-60
|
88
|
66
|
WOODIES
|
A52165
|
RAB
|
WRB016
|
713196
|
6961152
|
554
|
-60
|
270
|
86
|
A52165
|
RAB
|
WRB065
|
713666
|
6960352
|
563
|
-60
|
270
|
98
|
RC
|
WRC011
|
713731
|
6960252
|
562
|
-60
|
270
|
114
|
Appendix 2
Historical Drill Hole Significant Intercepts
Intercepts based on a minimum intercept of 10 gram*meters,
0.6g/t Au lower cut off and a maximum internal dilution of
1m.
Prospect
|
Lease
|
Hole ID
|
Easting
MGA94 Zone 50
|
Northing
MGA94 Zone 50
|
Depth From
(m)
|
Depth To
(m)
|
Interval
(m)
|
Au
(ppm)
|
Grade Width
|
MYSTERY
|
E 57/769-I
|
SG131
|
704724
|
6971496
|
69
|
80
|
11
|
15.94
|
175.37
|
IRONCLAD
|
I043
|
705249
|
6971074
|
8
|
16
|
8
|
21.78
|
174.24
|
WOODIES
|
WRB065
|
713666
|
6960352
|
41
|
58
|
17
|
5.44
|
92.42
|
IRONCLAD
|
I084
|
705339
|
6971010
|
10
|
20
|
10
|
9.15
|
91.46
|
SG190
|
705225
|
6971087
|
23
|
35
|
12
|
6.89
|
82.66
|
I107
|
705254
|
6971077
|
2
|
7
|
5
|
15.96
|
79.8
|
I122
|
705256
|
6971067
|
9
|
14
|
5
|
14.5
|
72.5
|
SILVER LINING
|
BR064
|
709916
|
6965352
|
18
|
24
|
6
|
11.77
|
70.62
|
IRONCLAD
|
SG168
|
705204
|
6971102
|
35
|
43
|
8
|
8.54
|
68.33
|
SILVER LINING
|
BR053
|
709916
|
6965352
|
18
|
26
|
8
|
6.51
|
52.06
|
KISMET
|
SSTA33
|
705335
|
6971002
|
33
|
41
|
8
|
6.26
|
50.06
|
IRONCLAD
|
I101
|
705250
|
6971081
|
16
|
20
|
4
|
12.5
|
50
|
I108
|
705256
|
6971079
|
12
|
17
|
5
|
9.94
|
49.7
|
SG183
|
705242
|
6971090
|
26
|
33
|
7
|
6.99
|
48.94
|
ICRC006
|
705167
|
6971099
|
88
|
96
|
8
|
5.11
|
40.87
|
SILVER LINING
|
BR099
|
709916
|
6965352
|
28
|
32
|
4
|
10.13
|
40.52
|
INHERITANCE
|
E 57/770-I
|
NE1
|
701473
|
6977699
|
28
|
31
|
3
|
12.5
|
37.49
|
IRONCLAD
|
E 57/769-I
|
SG168
|
705204
|
6971102
|
20
|
30
|
10
|
3.34
|
33.38
|
BARRAMBIE
|
E 57/770-I
|
BRB186
|
703807
|
6974103
|
32
|
40
|
8
|
4.11
|
32.84
|
IRONCLAD
|
E 57/769-I
|
I107
|
705254
|
6971077
|
9
|
12
|
3
|
10.63
|
31.9
|
I099
|
705245
|
6971078
|
11
|
14
|
3
|
10.35
|
31.04
|
I094
|
705245
|
6971083
|
7
|
13
|
6
|
5.16
|
30.94
|
I047
|
705254
|
6971065
|
5
|
8
|
3
|
10.29
|
30.86
|
I013
|
705192
|
6971135
|
11
|
17
|
6
|
5.1
|
30.57
|
I118
|
705260
|
6971063
|
0
|
3
|
3
|
9.89
|
29.68
|
SILVER LINING
|
SLRB034
|
705335
|
6971002
|
32
|
44
|
12
|
2.47
|
29.6
|
IRONCLAD
|
I115
|
705257
|
6971062
|
12
|
16
|
4
|
7.16
|
28.64
|
SILVER LINING
|
SLRC002
|
705335
|
6971002
|
50
|
52
|
2
|
14
|
28
|
IRONCLAD
|
I118
|
705260
|
6971063
|
11
|
14
|
3
|
9.16
|
27.48
|
SG185
|
705199
|
6971117
|
34
|
37
|
3
|
8.88
|
26.64
|
I070
|
705189
|
6971128
|
15
|
16
|
1
|
26
|
26
|
I100
|
705247
|
6971080
|
12
|
19
|
7
|
3.57
|
24.98
|
SG191
|
705314
|
6971016
|
17
|
20
|
3
|
8.29
|
24.88
|
SILVER LINING
|
E 57/769-I
|
BERB085
|
709663
|
6965452
|
22
|
32
|
10
|
2.44
|
24.38
|
BARRAMBIE SHEAR
|
B194
|
710089
|
6964890
|
25
|
29
|
4
|
6.07
|
24.27
|
IRONCLAD
|
I102
|
705253
|
6971083
|
15
|
20
|
5
|
4.66
|
23.32
|
ICRC004
|
705154
|
6971128
|
76
|
85
|
9
|
2.56
|
23.02
|
I106
|
705249
|
6971075
|
4
|
12
|
8
|
2.85
|
22.81
|
SILVER LINING
|
SLRB029
|
705335
|
6971002
|
52
|
60
|
8
|
2.75
|
22
|
BARRAMBIE SHEAR
|
B207
|
710124
|
6964634
|
12
|
15
|
3
|
6.91
|
20.72
|
IRONCLAD
|
I081
|
705258.9
|
6971079
|
6
|
15
|
9
|
2.28
|
20.52
|
I069
|
705199
|
6971133
|
14
|
19
|
5
|
4.08
|
20.4
|
SG192
|
705292
|
6971030
|
28
|
32
|
4
|
4.98
|
19.9
|
SG164
|
705288
|
6971046
|
18
|
21
|
3
|
6.58
|
19.74
|
I093
|
705242
|
6971083
|
10
|
16
|
6
|
3.09
|
18.52
|
SG167
|
705225
|
6971088
|
24
|
28
|
4
|
4.62
|
18.46
|
I105
|
705251
|
6971076
|
17
|
18
|
1
|
18.25
|
18.25
|
SG165
|
705267
|
6971059
|
2
|
10
|
8
|
2.28
|
18.23
|
SILVER LINING
|
BR001
|
709916
|
6965352
|
40
|
44
|
4
|
4.53
|
18.12
|
BR048
|
709916
|
6965352
|
32
|
46
|
14
|
1.29
|
18.06
|
IRONCLAD
|
I098
|
705242
|
6971077
|
11
|
17
|
6
|
2.87
|
17.2
|
SG190
|
705225
|
6971087
|
41
|
44
|
3
|
5.49
|
16.48
|
SG183
|
705242
|
6971090
|
17
|
24
|
7
|
2.32
|
16.26
|
ICRC002
|
705123
|
6971166
|
74
|
80
|
6
|
2.55
|
15.28
|
SG192
|
705292
|
6971030
|
34
|
35
|
1
|
15.2
|
15.2
|
SG184
|
705220
|
6971104
|
48
|
50
|
2
|
7.58
|
15.16
|
I111
|
705252
|
6971071
|
11
|
16
|
5
|
2.95
|
14.74
|
SG194
|
705253
|
6971056
|
23
|
28
|
5
|
2.71
|
13.57
|
I125
|
705255
|
6971072
|
10
|
16
|
6
|
2.22
|
13.32
|
WOODIES
|
WRC011
|
713731
|
6960252
|
88
|
90
|
2
|
6.5
|
13
|
IRONCLAD
|
SG179
|
705219
|
6971118
|
6
|
12
|
6
|
2.16
|
12.97
|
SILVER LINING
|
BR037
|
709916
|
6965352
|
14
|
20
|
6
|
2.11
|
12.64
|
IRONCLAD
|
I039
|
705244
|
6971083
|
13
|
14
|
1
|
12.6
|
12.6
|
SG180
|
705194
|
6971130
|
46
|
50
|
4
|
3.08
|
12.33
|
I013
|
705192
|
6971135
|
2
|
8
|
6
|
2.02
|
12.12
|
SILVER LINING
|
BR054
|
709916
|
6965352
|
30
|
36
|
6
|
1.97
|
11.82
|
IRONCLAD
|
ICRC007
|
705185
|
6971063
|
53
|
55
|
2
|
5.8
|
11.6
|
I018
|
705178
|
6971138
|
16
|
19
|
3
|
3.82
|
11.46
|
SG184
|
705220
|
6971104
|
13
|
15
|
2
|
5.7
|
11.39
|
I104
|
705246
|
6971073
|
11
|
12
|
1
|
11
|
11
|
IRONCLAD
|
E 57/769-I
|
ICRC008
|
705160
|
6971049
|
99
|
100
|
1
|
11
|
11
|
SG166
|
705246
|
6971074
|
41
|
48
|
7
|
1.57
|
10.97
|
KISMET
|
SSTA35
|
705335
|
6971002
|
35
|
38
|
3
|
3.62
|
10.87
|
IRONCLAD
|
SG188
|
705256
|
6971067
|
10
|
15
|
5
|
2.16
|
10.81
|
WOODIES
|
WRB016
|
713196
|
6961152
|
37
|
46
|
9
|
1.2
|
10.76
|
IRONCLAD
|
ICRC006
|
705167
|
6971099
|
42
|
44
|
2
|
5.33
|
10.65
|
IRONCLAD
|
E 57/769-I
|
SG187
|
705230
|
6971101
|
43
|
46
|
3
|
3.42
|
10.27
|
KISMET
|
SSTR38
|
705335
|
6971002
|
17
|
25
|
8
|
1.28
|
10.25
|
IRONCLAD
|
SG164
|
705288
|
6971046
|
24
|
27
|
3
|
3.38
|
10.13
|
Appendix 3
2024 Grab/Rock Chip Au Assay Results
Sample ID
|
Easting
MGA94 Zone 50
|
Northing
MGA94 Zone 50
|
RL
|
Au
Result (ppm)
|
Comments
|
BGR01
|
705611
|
6968768
|
510
|
2.401
|
Quartz vein with hematite alteration
and oxidised pyrite nodules
|
BGR02
|
705493
|
6968991
|
510
|
3.67
|
Quartz vein with hematite alteration
and oxidised pyrite nodules. Spoil grab.
|
BGR03
|
706620
|
6967801
|
510
|
5.114
|
Quartz vein with hematite alteration
and large cubic oxidised pyrite
|
BGR04
|
710107
|
6964345
|
510
|
0.1
|
Sericite and silica altered quartz
vein with epidote stringers and pyrite in sheared mafic
|
BGR05
|
710141
|
6964491
|
510
|
44.041
|
Quartz vein with sulphides from
mullock pile
|
BGR06
|
710136
|
6964511
|
510
|
17.268
|
Sheared mafic from foot wall side of
costean
|
BGR07
|
710097
|
6964799
|
510
|
0.14
|
Grab of mineralised vein from
trench
|
BGR08
|
710074
|
6964903
|
510
|
0.113
|
Grab of quartz material from
trench
|
BGR09
|
710090
|
6964917
|
510
|
0.062
|
Grab of quartz material from surface
with stockwork of quartz veins
|
BGR10
|
709992
|
6964937
|
510
|
3.196
|
Grab of spoil material from Magnum
Bonum North
|
BGR11
|
709992
|
6964973
|
510
|
2.812
|
Quartz float grab sample from
surface
|
BGR12
|
710169
|
6964185
|
510
|
0.062
|
Sheared Basalt with 2cm quartz vein
and oxidised pyrite
|
BGR13
|
710470
|
6962883
|
510
|
2.482
|
Grab of quartz veining around the
shaft
|
BGR14
|
710471
|
6962885
|
510
|
0.729
|
Rock chips of in situ
veining
|
BGR15
|
710471
|
6962952
|
510
|
5.879
|
Weathered gabbro with oxidised
sulphides
|
BGR16
|
710239
|
6963354
|
510
|
0.029
|
Weathered gabbro with quartz
stringer veins and chlorite alteration
|
BGR17
|
703407
|
6977563
|
510
|
0.01
|
Bucky white smokey quartz float with
oxidised sulphides
|
BGR18
|
703338
|
6977748
|
510
|
0.002
|
Bucky with quartz vein, larger
pitted pyrite
|
BGR19
|
703169
|
6977725
|
510
|
0.609
|
Quartz vein, iron and goethite
staining plus pyrite
|
BGR20
|
703125
|
6977725
|
510
|
0.155
|
Bucky white quartz
veining
|
BGR21
|
701495
|
6977738
|
510
|
0.028
|
Sheared quartz vein with flakes of
muscovite and goethite staining
|
BGR22
|
701489
|
6977726
|
510
|
0.154
|
Grab sample from the mullock dump
around the shaft
|
BGR23
|
704044
|
6971992
|
510
|
0.014
|
Smaller secondary veining within
larger bucky vein with mica, pyrite and sericite
|
BGR24
|
704062
|
6971991
|
510
|
0.316
|
Sampled in situ from vein in wall of
shallow shaft at Treasure
|
BGR25
|
704076
|
6971985
|
510
|
0.071
|
Sampled in situ from edge of
workings at Treasure
|
BGR26
|
703559
|
6972271
|
510
|
0.015
|
Sheared felsic with silica-sericite
alteration, goethite and fine pyrite
|
BGR27
|
703560
|
6972271
|
510
|
0.031
|
Sheared quartz vein pitted pyrite
with goethite alteration
|
BGR28
|
703506
|
6972237
|
510
|
0.033
|
Flat lying splayed quartz vein from
large bucky vein
|
BGR29
|
703496
|
6972240
|
510
|
0.034
|
Horse tail splay of quartz veins in
wall of costean
|
BGR30
|
703496
|
6972241
|
510
|
0.36
|
Sample of the large bucky quartz
vein as a control
|
BGR31
|
703568
|
6972259
|
510
|
0.588
|
Vertical white quartz vein on edge
of trench
|
BGR32
|
703456
|
6972125
|
510
|
0.037
|
Grab of float quartz vein from
riverbed west of Hercules
|
BGR33
|
704919
|
6971459
|
510
|
1.255
|
Grab samples of weathered basalts
from Lupton's East workings
|
BGR34
|
704903
|
6971500
|
510
|
0.014
|
Goethite rich quartz vein
|
BGR35
|
704802
|
6971413
|
510
|
0.027
|
Quartz grab at surface
|
BGR36
|
704743
|
6971515
|
510
|
0.411
|
Basalt with quartz veining with
chlorite, goethite and pyrite
|
BGR37
|
704745
|
6971516
|
510
|
0.063
|
Quartz chlorite schist on contact.
Grab sample
|
BGR38
|
704748
|
6971533
|
510
|
0.558
|
Quartz vein with
Chrysocolla
|
BGR39
|
704754
|
6971542
|
510
|
0.568
|
Large boulder with gabbro contact
with quartz pyrite goethite and oxidised pyrite (Mystery type
sample)
|
BGR40
|
704759
|
6971551
|
510
|
1.543
|
Foliated basalt with oxidised cubic
pyrite
|
BGR41
|
704693
|
6971783
|
510
|
0.98
|
Basalts with kaolin in weathered
fractures
|
BGR42
|
704722
|
6971793
|
510
|
4.753
|
Basalts with kaolin in weathered
fractures parallel load
|
BGR43
|
705258
|
6971068
|
510
|
5.527
|
Grab sample of quartz veining with
hematite and goethite alteration
|
Appendix 4 - JORC Table 1
Section 1: Sampling Techniques, and Data
(Criteria in this section apply to all succeeding
sections).
Criteria
|
Commentary
|
Sampling techniques
|
Australian Titanium
Sampling activities include 43 grab and rock chip samples
collected by Australian Titanium between 16-18 April 2024. Samples
consisted of 1-3kg of mullock spoil or in situ outcrop sampled
using a handheld geo pick hammer. Samples were collected in
numbered calico bags and dispatched to Intertek Genalysis and
assayed by fifty-gram fire assay with ICP-MS finish (FA50/MS) for
Au, Pd and Pt.
Historical Drill Data (Prior to Australian
Titanium)
Limited details about historical sampling methods not carried
out by NEOMETALS were included in the WAMEX reports. Historical
sampling referenced has been carried out by Samson Exploration NL,
Regional Resources NL, Black Swan Gold Mines Ltd, Acclaim
Exploration NL, Golden West Resources Ltd, Great Australian
Resources NL, St Barbara Mines Limited, and Classic Minerals Ltd.
Sampling included soil sampling, reverse circulation (RC) drilling,
diamond drilling (DD), rotary air blast (RAB) drilling, aircore
(AC) drilling, and unknown (UK) drilling.
RAB/AC sampling:
· Samson Exploration 1987
(A21923, A22002, A22584, A22837, A23205, A23650, A23662, and
A24458). Used spear sampling of 2m to 6m composite samples which
were submitted to an appropriate lab for gold determination by Aqua
Regia, such as Minlab.
· Acclaim Exploration NL 1996
(Acclaim, A49171, A52165), One metre sample piles were sampled with
a scoop as four metre composites of average weight 2.5kg. Samples
were then transported to Perth and assayed; those above 0.2g/t Au
were resampled at one metre intervals using the scoop and calico
bags. Assayed at Genalysis by Aqua Regia Digest with unknown
finish.
· Dominion Mining Ltd 1992
(Dominion, A35163), drilled 92 RAB holes for 2,107m taking bottom
of hole samples and 18 additional samples at the discretion of the
geologist logging the holes. All samples were analysed for Au, As,
Cu, Pb, Zn and Ni by Genalysis in Perth.
· Samson Exploration NL 1993
(Samson, A40046). Holes were sampled at 1m intervals and 5m
composite samples were sent to Australian Assay Laboratory to be
assayed using Fire Assay, aqua regia digest, and carbon rod finish
with 1ppb lower detection limit. 30g charges of 250g pulps were
used for repeat assays.
· Samson 1995 (A44301) One
metre intervals were sampled and four metre composites collected.
Anomalous composite samples (generally greater than 0.25ppm Au)
were resampled at one metre and assayed at Minlabs Perth using aqua
regia digest and AAS analysis for gold, arsenic and copper. A total
of 1531 4m composite samples were collected with a further 119 one
metre resamples taken.
· Tindals Gold Mines NL 1995
(Tindals, A47011). Samples were laid out in 1m piles and 4m
composite samples were collected. Samples were assayed at Minlabs
Perth using aqua regia digest and AAS analysis for Au(ppb), V(ppm)
and Cu(ppm).
· Newcrest Mining Limited 1996
(Newcrest, A47114). 4m composite samples were taken for all holes
and sent to Genalysis Laboratory Services for low level Au B/ETA
(1ppb) and As and Cu B/AAS (ppm) analysis.
· Great Australian Resources
1985 (GAR, A16272) and 1986 (A17137). Holes were sampled at 2m
intervals using an unknown method. Samples were assayed for gold at
Pilbara Labs using AAS and Aqua Regia digest. Samples with massive
titano-martite were also assayed for Fe, V, Ti, Cr, Ni, Pt and Pd
by fire assay.
· St Barbara Mines Limited 1997
(St Barbara, A52148), 2000 (A61495), and 2001 (A62800). 6m
composite samples were taken by unknown method. Samples were sent
to SBML laboratory at Bluebird and assayed for gold by 50g Fire
Assay with AAS finish. Samples that assayed >= 0.1ppm Au were
re-assayed at 1m intervals.
RC
sampling:
· Miralga Mining NL 1986
(Miralga, A22658). Samples were collected at 1
metre intervals and riffle split to 2 kg. The samples were sent to
ALS Perth for gold determination by Au50 Fire Assay analysis which
has a 0.01ppm detection limit.
· Samson 1987 - as for
Aircore.
· Black Swan Gold Mines Ltd
1992 (BSGM, A37144). Samples weighing around 1kg
collected every metre from a mechanical splitter attached to the
rig.
· Acclaim 1996 (A52165) and
1997 (A48813). 1m samples were collected using a cyclone and
splitter.
· Golden West Resources 2008
(GWR, A78133). Samples were collected in 1m intervals using a cone
splitter attached to the cyclone, residues were collected in
plastic bags.
DD
sampling:
· Samson 1987 -
RC pre-collars submitted at 1m intervals for Au (AAS) and the
core was selectively sampled and intervals were cut into quarters.
One quarter was sent for Au assay by Fire Assay and the remaining
core kept.
Samson Exploration drilled several holes of unknown type in
1988 (A26799). No sampling information was available for these
holes in the WAMEX report.
The
Competent Person considers these methods of sampling to be
appropriate for this style of exploration and consistent with
industry practise at the time.
|
Drilling techniques
|
Historical Drill Data (Prior to Australian
Titanium)
RAB/Aircore drilling was carried out for:
· Samson 1987 -
Cockburn Drilling
using a Mole Pioneer Pl60. All holes were 20m holes drilled at -60°
to grid west, along grid lines 100 metres apart.
· Acclaim 1996, Holes were
drilled by Orbit drilling using a KL150 rig with 250psi at 650cfm.
Holes were drilled to blade refusal. Holes were between 8 and 108m
deep. Holes were drilled at -60o to grid west or
east.
· Dominion 1991, 1992 and 1993
completed by Kennedy Drilling of Kalgoorlie. Holes were between 1
and 39m deep and were all drilled vertically.
· Samson 1993 was
carried out by
Ryanex Pty Ltd using a Deutz-powered self-built rig with a capacity
of 400 cfm at 175 psi. Holes were between 5 and 84m deep and were
all drilled vertically.
· Samson 1995,
completed by
Challenge Drilling using a Challenger RA150 rig. Holes were between
9 and 75m deep. Holes were either drilled vertically, or at
-60o to grid east.
· Tindals 1995
was
completed by
Challenge Drilling using a Challenger RA150 rig. Holes were between
1 and 64m deep. Holes were drilled vertically or at -60o
to grid east.
· Acclaim 1996 was completed by
Orbit Drilling using a KL150 drilling rig with 250psi/650cfm
capacity. Holes were between 3 and 98m deep. Holes were drilled at
-60o to grid west or east. One hole was a water bore
drilled vertically.
· Newcrest 1996
was
completed by
Challenge Drilling. Holes were between 2 and 101m deep and all
holes were drilled vertically.
· GAR 1985 and 1986. Holes were
drilled by Kennedy Drilling using a Mole Pioneer drill rig. Holes
were between 22 and 74m deep. Holes were drilled at -60o
to grid east.
· St Barbara 1997, 2000, and
2001. Holes were drilled by an unknown contractor using a GEMCO
drill rig. Holes were 3 to 50m deep. Holes were drilled at
-60o to grid west or east.
RC
drilling was carried out by:
· Miralga 1986 by Civil
Drilling Services using an Ingersoll-Rand TH 60 rig having 250psi
with 750cfm capacity. Holes were between 38 and 50m deep. Holes
were drilled at -60o to grid west or
east.
· Samson 1987 Holes were
completed by Green Drilling using a
Schramm 66. Holes were between 15 and 93m. Holes drilled vertically
or at -60o with azimuths between 30o and
260o grid.
· BSGM 1992 (was completed by
Leonora Drilling Pty Ltd using an RC aircore drilling rig.
Holes were between 20 and 31m deep. Holes were either vertical or
drilled at -60o with azimuths between 60o and
240o grid.
· Acclaim 1996 and 1997 was
completed by Butchart Drilling using an Ingersoll Rand THIO
drill-rig drilling 5.25-inch holes using a face sampling hammer and
an RC rod string. Holes were between 104m and 128m deep at
-60o with 60o azimuths
grid.
· GWR 2008 were drilled by
contractor Grovebrook Drilling. Vertical holes were between 101 and
200m deep.
· Samson 987 diamond drilling
by Green Drilling using a Schramm 66 for the RC pre-collars and
Collie Drilling completing the NQ coring portions of the holes.
Holes were between 45 and 51m deep, drilled at -60o with
223o azimuth grid.
|
Drill sample recovery
|
Historical Drill Data (Prior to Australian
Titanium)
Limited sample recovery and condition information has been
found in the historical reports to date.
|
Logging
|
Historical Drill Data (Prior to Australian
Titanium)
In
some cases, original coordinates were only provided in unknown
local grids. In these cases, MGA coordinates for holes were derived
by georeferencing maps contained in the WAMEX reports and
digitising the collars and it is expected that the accuracy of hole
collar coordinates is within a few metres - roughly equivalent to
GPS accuracy. Historic tenement boundaries and landmarks visible on
aerial photography were used to georeference the maps. Minor
corrections were then made where drill pads were still visible on
aerial photography.
For
reports that only contained handwritten logs, hole dips and
azimuths were based on planned hole details, compass readings, or
averages of survey tool measurements. These measurements are
considered less reliable than modern downhole survey using
north-seeking gyro.
· Miralga 1986
consist of
handwritten drill logs included as an appendix and are consistent
with logging procedures of the time with a Hole ID, Co-ordinates,
Rock description, a summary description, sample number, and logged
metre interval with an end of hole depth
recorded.
· Samson 1987 consist of
handwritten drill logs included as an appendix and are consistent
with logging procedures of the time with a Hole ID, Co-ordinates,
Rock description, a summary description, sample number, and logged
metre interval with an end of hole depth
recorded.
· Acclaim 1997, Chip Logging: A
representative selection of sample of each metre was logged using a
binocular microscope onto a graphical log at 1 :200 scale. Special
notes were made of the sample quality and approximate water depth.
Original drill logs are consistent with logging
procedures of the time with a Hole ID, Co-ordinates, Rock
description, a summary description, sample number, and logged metre
interval with an end of hole depth recorded.
· Dominion 1991, 1992 and
1993 consist of handwritten drill logs included as an appendix and
are consistent with RAB logging procedures of the
time.
· BSGM 1992 consist of
handwritten drill logs included as an appendix and are consistent
with RC and AC logging procedures of the time.
· Samson 1993 and 1995 consist
of handwritten drill and are consistent with RAB logging procedures
of the time.
· Tindals 1995
consist of
handwritten drill logs and are consistent with RAB logging
procedures of the time.
· Newcrest 1996
consist of
handwritten drill logs included as an appendix and are consistent
with RAB logging procedures of the time with a Hole ID,
Co-ordinates, rock description, a summary description, sample
number, and logged metre interval with an end of hole depth
recorded.
· Acclaim 1996
consist of
handwritten drill logs are consistent with RAB logging procedures
of the time.
· GWR 2008 included digital
logs and are consistent with logging procedures of the time.
Downhole survey data were generated by handheld compass, though the
holes are all vertical, so this is not considered
problematic.
· GAR 1985 and 1986
(consist of handwritten drill logs and are consistent with RAB
logging procedures of the time.
· St Barbara 1997, 2000, and
2001 consist of handwritten drill logs and are consistent with RAB
logging procedures of the time.
· Samson 1988. No logging
information was located for these holes. Hole collar coordinates
were derived by georeferencing maps, and other hole details and
assays were derived from cross sections in the
report.
|
Sub-sampling techniques and sample
preparation
|
Australian Titanium
Rock chip samples were collected in numbered calico bags and
dispatched to the Intertek Genalysis for fifty-gram fire assay with
ICP-MS finish (FA50/MS) for Au, Pd and Pt.
Historical Drill Data (Prior to Australian
Titanium)
Limited details about historical sub-sampling was
located.
· Miralga 1986 samples were
collected at 1 metre down hole intervals prior to being riffled on
site to an assay sample weight of approximately 2kg. The sample
residues for each metre were bagged, numbered, and left in rows at
the drill site. Samples were dispatched to Australian Assay
Laboratories in Perth for gold assay by 50g fire assay with 0.1ppm
detection limit.
· Samson 1987
reported samples
were collected at one-metre intervals by spearing. Samples were
dispatched to Minlab for gold determination by Aqua Regia, with a
detection limit of 0.05ppm. Approximately 5% of the coarse rejects
were submitted to Resource Development Laboratories of Perth for
cross-checking by Fire Assay.
· Acclaim 1997 reported that
samples were collected at one-metre intervals by cyclone and
splitter. Green bags caught the drill spoil passed through the
cyclone for each metre. The resulting sample was tipped through the
87.5:12.5 multiple splitter. The sample residues were collected in
numbered plastic UV bags and put in rows of 20, the 12.5 split was
collected in numbered calico bags and weighed to ensure the sample
weight did not exceed 3.3kg. If the weight exceeded this, it was
re-split through a single stage splitter. Samples were dispatched
to Ultratrace laboratories in Belmont Perth. Samples were dried in
the calico bags then pulverised in a LM5 disc Mill. A 50g charge
was then assayed for Au, Pt, and Pd by Aqua Regia digest with
ICP-OES finish. A selection of mineralised samples from each hole
were submitted to Genalysis for screen Fire
Assay.
· Dominion 1991 to 1993. End of
hole samples were taken and dispatched to Genalysis Laboratory
Services Pty Ltd. Samples were analysed for Au by Aqua Regia with
AAS finish (B/ETA), and As, Cu, Sb, Bi, Mo, Pb, Zn and Ni by Aqua
Regia digest with AAS finish (B/AAS)
· BSGM 1992 holes were sampled
every metre. No details on sampling methodology were included in
the report. Samples were assayed for gold by Fire Assay at an
unknown laboratory.
· Samson 1993. Cuttings were
collected at 1m intervals and laid out in lines with five-metre
composites collected. Samples were sent to Australian Assay
Laboratory and assayed using Fire recovery, Aqua Regia Digest, and
Carbon Rod finish with a detection limit of 1ppb Au. 30g of 250g
pulps were used for repeat assays.
· Samson 1995. Cuttings were
collected at 1m intervals and laid out in lines with four-metre
composites collected. Samples were dispatched to
Minlabs in Perth
and assayed for Au, As, and Cu by Aqua Regia digest with AAS
finish. Composite results >0.25ppm Au were resampled on a one-metre
basis and assayed using the same method.
· Tindals 1995.
Cuttings were
collected at 1m intervals and laid out in lines with four-metre
composites collected. Samples were dispatched to
Minlabs in Perth
for Aqua Regia assay with AAS finish for gold (ppb), vanadium (ppm)
and copper (ppm).
· Newcrest 1996.
Cuttings were
collected at 1m intervals and laid out in lines with four-metre
composites collected. Samples were dispatched to Genalysis
Laboratory Services Pty Ltd and assayed for gold by Aqua
Regia digest with AAS finish (B/ETA - 1ppb detection limit), and As
and Cu by Aqua Regia digest with AAS finish (B/AAS - 5ppm and 1ppm
detection limit respectively).
· Acclaim 1996 to 1997. Samples
were laid out in one-metre piles next to the hole with a pin marker
placed in the first metre with the hole number. Samples were
collected using an aluminium scoop for four-metre composites for an
average 2.5kg sample. Samples were packed in poly-woven bags and
taken to Key Transport Meekatharra for transport to Perth.
Composite assay results > 0.2g/t Au were resampled at one-metre
intervals using scoop and calico bags. Samples were sent
to Genalysis Perth for Au analysis by Aqua Regia with a 1ppb
detection limit.
· GWR 2008.
Samples were
collected in 1m intervals using a cone splitter attached to the rig
cyclone, residues were collected in plastic bags. Samples were
dispatched to SGS laboratory for analysis of Au and As. Au
was analysed by method FAA505 and As by method
AAS21R.
· GAR 1985 and 1986. Holes were
sampled at 2m intervals using an unknown method. Samples were
assayed for gold at Pilbara Labs using AAS and Aqua Regia digest.
Samples with massive titano-martite were also assayed for Fe, V,
Ti, Cr, Ni, Pt, and Pd by fire assay.
· St Barbara 1997, 2000 and
2001. 6m composite samples were taken by unknown method. Samples
were sent to SBML laboratory at Bluebird and assayed for gold by
50g Fire Assay with AAS finish. Samples that assayed >= 0.1ppm
Au were re-assayed at 1m intervals.
· Samson drilled several holes
of unknown type in 1988. No sampling information was available for
these holes in the WAMEX report.
The
Competent Person considers these methods of sub-sampling and assay
to be appropriate for this style of exploration and consistent with
industry practise at the time.
|
Quality of assay data and laboratory tests
|
Australian Titanium
To
assure sample quality met the standards required by the Company and
the mineralisation being sampled, the commercial lab's procedures
and equipment were inspected and assessed for (among other things)
maintenance, cleanliness, and appropriateness for the task. Company
history and personnel experience were also assessed.
One
CRM was included in the batch of samples submitted for rock chip
analysis to Intertek Genalysis for assay. The lab also performed
lab duplicate checks and inserted CRMs into the batch as part of
their routine QAQC checks. The company analysed the performance of
these duplicates and CRMs as results became available to ensure
issues were detected and meaningful corrective actions
implemented.
Historical Drill Data (Prior to Australian
Titanium)
All
historical samples are assumed to have been prepared and assayed by
then industry standard techniques and methods.
Limited historical QAQC data were available in the WAMEX
reports. Industry standard best practice is assumed in regard to
QAQC
· Miralga 1986
utilised
Australian Assay Laboratories Group. Reports indicate the lab
carried out repeats of primary samples however there is no
indication of standards or blanks being used.
· Samson 1987
samples were
dispatched to Minlab for gold determination. Approximately 5% of
the coarse rejects were submitted to Resource Development
Laboratories of Perth for cross-checking by fire
assay.
· Acclaim 1997. Samples were
dispatched to Ultratrace laboratories in Belmont Perth and
subjected to a 50g aqua regia digest for Au, Pt and Pd using
ICP-OES method. Detection levels are 1ppb, 5ppb and 2ppb
respectively. Routine lab checking consisted of a random 6% of
samples being analysed in duplicate. No details on any standard or
blank samples for these Aqua Regia assays were in the WAMEX report.
A selection of mineralised samples from each hole were also
submitted to Genalysis for screen Fire Assay as validation of the
Aqua Regia assays at Ultratrace. Standards and lab checks were
included in the WAMEX report for the Fire assays.
· Dominion 1991, 1992 and 1993.
Samples were dispatched to Genalysis Laboratory Services Pty
Ltd, reported assay results show the use of blanks, standards, and
regular Au repeats.
· BSGM 1992. Assay by Fire
Assay. Unclear which lab was used. Sample result sheets show
standards and duplicates were included in the assay
methodology.
· Samson 1993 and 1995. Samples
were dispatched to Minlabs in Perth and assayed
by Aqua Regia digest with AAS finish analysis for gold, arsenic,
and copper. 1ppb detection limit for Au. Duplicates were completed
for selected samples. No standards or blanks were recorded in the
WAMEX reports.
· Tindals 1995.
Samples were
dispatched to Minlabs in Perth for Aqua
regia assay with AAS analysis for gold (ppb), vanadium (ppm) and
copper (ppm). Reported assay results shows the use
of regular Au repeats for QAQC by the lab. No standard or blank
samples were recorded.
· Newcrest 1996.
Samples were
dispatched to Genalysis Laboratory Services Pty Ltd
for low level Au
B/ETA (1ppb) and As and Cu B/ASS (ppm) analysis.
Assay reports
show no evidence of QAQC.
· Acclaim 1996 and 1997.
Samples were sent to Genalysis Perth for Aqua
Regia analysis Au with a 1ppb detection limit. Samples from
the Cove prospect were also analysed for Au (1ppb), Cu (1ppm),
Zn(1ppm), Ag (0.5ppm), Ni (2ppm) and Co (0.5ppm).
Check assays included assaying 4% of a random selection of duplicate
assays for all elements and well as up to 6% of selected gold
repeats. No blanks were used. Some standards were inserted into
batches.
· GWR 2008. Samples were
dispatched to SGS laboratory for analysis of Au and As. Au was
analysed by Fire Assay method FAA505 and As by method
AAS21R. Check assays include a selection of
lab gold repeats.
· GAR 1985 and 1986. Reports
show lab duplicates were completed for selected samples. No record
of standards or blanks was included in the
reports.
· Samson 1988 Selected samples
were assayed in duplicate. No standards or blanks were
reported.
· St Barbara 1997, 2000, and
2001. Two standards were inserted into each lab batch and one in
six samples were randomly selected for duplicate assay. Samples
that assayed >0.5g/t Au were re-assayed in
duplicate.
The
Competent Person considers that the quality of the historical assay
data is sufficient to provide an indication but absolute measure of
the tenor of mineralisation sampled.
|
Verification of sampling and assaying
|
Australian Titanium
Geological data files were checked by the supervising
geologist to ensure integrity of logs and metadata prior to
submission to the database manager and upload to the hosted
database. Assay files were received from the lab by the data base
administrator, reviewed, and uploaded to the hosted database. The
database hosting software includes automated error checking to flag
any incorrect codes or numerical data outside of expected
ranges.
After import into the database, an export was created and all
data underwent a final check by the Senior Geologist and database
manager.
Significant results were reviewed by multiple company
geologists with reference to geological logs.
Historical data (drill data prior to
Australian
Titanium)
Historical data was compiled by experienced geologists from
existing digital data sets downloaded from WAMEX or digitised from
non-digital reports. Digitised datasets were visually validated in
both two and three dimensions. Once validated complete datasets
were compiled and uploaded to the hosted database. The
database hosting software includes automated error checking to flag
any incorrect codes or numerical data outside of expected
ranges.
Outside of any details included in the historical reports any
details about data entry, verification, and storage protocols
remains unknown for historical operators.
|
Location of data points
|
Australian Titanium
Samples were located in the field using hand- held GPS
(accuracy 5m) in the UTM zone 50J coordinate system (Equivalent to
MGA94 zone 50 projection).
Historical Drill Data (Prior to Australian
Titanium)
Historical collars are recorded as being located by DGPS, GPS,
compass, hip and chain measurement, or unknown methods. The
original coordinates were recorded in local grid, AMG66, AMG84, or
MGA94 coordinate systems. Coordinates were converted to MGA94 zone
50 using an automatic transformation in QGIS where possible. Where
unknown local grids were used, maps from WAMEX reports were
georeferenced and collars were digitised from the maps. In some
cases, minor corrections to collar locations were used based on
visibility of historic drill pads on aerial photography and
satellite images. Little information has been provided in terms of
downhole survey methods. Historical reports indicate a mix of
compass, north-seeking gyro, Eastman single shot, and multi shot
downhole cameras being used.
|
Data spacing and distribution
|
Historical Drill Data (Prior to Australian
Titanium)
Based on the stages of exploration advancement for each of the
project areas covered within the historical reports data spacing
and distribution is considered appropriate for
their style, stage, and level of understanding at the time.
However, by current standards most of the drill data prior to 1990
are considered suboptimal.
The
Competent Person considers that the spacing of the data is
sufficient to provide an indication but absolute measure of the
presence and location of mineralisation sampled and is suitable for
geological targeting.
|
Orientation of data in relation to geological
structure
|
Historical Drill Data (Prior to Australian
Titanium)
Based on drill hole orientations and the regional
aeromagnetics it appears that previous explorers attempted to drill
holes perpendicular to the interpreted strike of the structures.
The presence of historical workings would have aided them in
orientating the drilling appropriately. A review of the historic
data has determined that the orientation of drill holes was
appropriate for the level of understanding at the
time.
|
Sample security
|
Australian Titanium
Chain-of-custody protocols included supervision by Company
employees of the samples while on site and transportation of
samples to the lab.
Historical Drill Data (Prior to Australian
Titanium)
Sample security measures are unknown and generally not
referenced in the reports.
|
Audits or reviews
|
No
independent audits or reviews of sampling techniques and data were
conducted.
|
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this
section).
Criteria
|
Commentary
|
Mineral tenement and land tenure status
|
Drilling and Rock chip data being reported are located within
100% owned granted mining lease M57/173-I, and exploration licences
E57/769-I and E57/770-I in the Eastern Murchison Goldfields. No
known impediments exist to operate in the area.
|
Exploration done by other parties
|
The
Company has owned and been exploring Barrambie for approximately 25
years.
The
information below is based on annual technical reports submitted to
DMIRS and available through the online WAMEX portal: Each report is
identified by its unique A-number (e.g. Miralga Mining NL 1986
report A22658). The annual technical reports contain detailed
context about the work completed and results achieved, including
digital data for more recent reports.
Gold at Barrambie was discovered in 1905 during the
construction of the Rabbit Proof Fence. Subsequent prospecting
opened four main gold centres in the Barrambie area,
namely:
1. Barrambie Centre (including the Barrambie
Gold Mine)
2. Scheelite Centre* (including the Dohertys
Gold Mine)
3. Sugarstone Centre (including Sugarstone
Gold Mine, Mystery Gold Mine)
4. Errolls Centre* (including the Legacy
Gold Mine)
The
total production from the 4 mining centres mentioned above totalled
27,294 ounces of gold from 34,233 long tons of treated ore at an
average grade of 24.8g/t Au.
Location
|
Years
|
Tonnes Ore
|
Au
(g/t)
|
Gold (oz)
|
Errolls
|
1906 - 1919
|
10,141
|
19.01
|
6,197
|
Barrambie
|
1907 - 1966
|
16,530
|
28.96
|
15,390
|
Sugarstone
|
1908 - 1913
|
5,270
|
22.90
|
3,880
|
Dohertys
|
1955 - 1985
|
2,292
|
24.79
|
1,827
|
Total
|
|
34,233
|
|
27,294
|
· Miralga 1986
focused
exploration around the Legacy mine which was discovered in 1905.
Surrounding the Legacy mine is the Three Star mine and the
Inheritance mine, with reported combined production of 6,011.84
ounces of gold. Miralga completed 15 RC holes targeting the
historic workings looking for strike and down dip extensions of the
structures mined.
· Samson 1987
completed soil
sampling, costeaning, and drilling of 380 RAB holes, 152 RC holes
and 2 diamond holes. Rock chips were taken from the old workings.
Geological maps were produced at 1:10,000 scale. Samson defined
three historic estimates of gold mineralisation:
o Ironclad: 134,000t @ 3.2g/t
Au (Sjerp, 1989)
o Errolls: 28,000t @ 4.1g/t Au
(Sjerp, 1989)
o Dohertys: 6,500t @ 21.3g/t Au
(Tomich, 1989)
The
Competent Person cautions that these estimates were not estimated
or reported in accordance with the JORC Code or any of its
precedents and do not comprise Mineral Resource estimates but are
indications of the presence of mineralisation.
· Acclaim 1996 explored from
the Errolls prospect south to the Barrambie Mining Lease, including
the Sugarstone/Mystery and Ironclad prospects. Acclaim completed 13
RC holes for 1,421m to test the depth and strike of the Ironclad
prospect and also completed geochemistry over the Floodway East
prospect, following up on historic RAB drilling. Acclaim drilled
110 RAB holes for 5,928m to test Au anomalies from previous soil
samples. They also completed 538 soil samples across the tenement
to detect gold anomalism.
· Dominion 1991 to
1993:
o Exploration an area northeast
of the Ironclad prospect consisted of 94 vertical RAB holes
targeting the greenstone granite contact.
o At Errolls North exploration
consisted of lag sampling and 41 vertical RAB holes targeting
Archean bedrock for bottom of hole Au and multielement
analysis.
· BSGM 1992 explored the
Barrambie Range to feed the company's Whistler Gold operation, 50km
to the east. Drilling focused on identifying mineralisation in the
top 20m of the Ironclad prospect, comprising 125, 20m deep RC holes
and further drilling at Errolls and Dohertys, which are off
NEOMETALS tenure.
· Samson:
o In 1993, exploration included
soil sampling, ground mag and RAB drilling. A total of 83 RAB holes
were drilled targeting a shear structure
o In 1995, work comprised 120
RAB holes testing several targets generated from 1993 ground
magnetics and RAB geochemical anomalies.
· Tindals 1995 exploration
comprised 63 RAB holes drilled on the
Barrambie Greenstone Belt assaying for As, As and
Cu.
· Newcrest 1996 explored
the Errolls joint venture project where 63 RAB holes were drilled
in the reporting period.
· Acclaim 1996 121 RAB holes
were drilled following up on Au in soil and rock-chip anomalies and
25 RC holes drilled testing Au mineralisation discovered at the
Woodies and Silver Lining Prospects.
· GWR 2008 drilled into the
Dohertys prospect for 6 holes with the assay results reported
later. Drilling intersected the Dohertys quartz vein and associated
pyrite mineralisation.
· Samson 1996 explored the
Dohertys gold mine and Barrambie Ranges and completed aerial
photography, gridding, sampling and mapping, stream sediment
samplings, RAB drilling, RC drilling, diamond drilling, underground
exploration, metallurgical sampling and dump sampling at Dohertys
mine.
· GAR 1985 and 1986 drilled 114
RAB holes for a total of 5,479m to test for gold potential at the
Barrambie and Sugarstone mining centres and to test the gold
potential of titano-martite bearing rocks.
· St Barbara 1997, 2000 and
2001 explored the Kismet, Sugarstone, and Ironstone prospects and
drilled 41 AC holes for 1,708m, and 15 RAB holes for 621m at the
Kismet prospect to test granitoid contacts and old workings. 25 RAB
holes for 868m were drilled to the east of Ironclad to test
granitoid contacts.
|
Geology
|
The
Barrambie gold project occurs within the Archaean Barrambie
Greenstone Belt, which is a narrow, NNW-SSE trending greenstone
belt in the northern Yilgarn Craton. The linear greenstone belt is
about 60 km long and attains a maximum width of about 4 km. It is
flanked by banded gneiss and granitoids. The Barrambie Sill is
comprised of anorthositic magnetite-bearing gabbros that intrude a
sequence of metasediments, banded iron formation, metabasalts and
metamorphosed felsic volcanics of the Barrambie Greenstone Belt.
The metasediment unit forms the hanging-wall to the layered sill
complex.
All
of the rocks of the Eastern Goldfields Superterrane have been
subjected to the same post 2720 Ma structural history, comprising
the D1 to D6 of Blewett and Czarnota (2010). The layered sequence
is folded into an upright isoclinal anticline with attendant minor
folds plunging to the northwest at 30 degrees. A Strong schistosity
has developed as an axial plane fabric and is parallel or
sub-parallel to the bedding.
Early shears trend from 345° to 360° with later faults
trending 070° to 090°. Later second order faults trend 060°. Fault
displacements range from a few metres to 400
metres.
Historically gold mineralisation was reported to occur mainly
within the preserved eastern limb of the anticline and that the
western limb was interpreted to have been consumed by intruding
granites.
Historically it has been reported that the gold mineralisation
occurs mainly within the preserved eastern limb for a strike length
of 35km.
The
mineralisation is structurally controlled. It
occurs:
•
In N-S
shear-zones (Barrambie Ranges, Sugarstone-Mystery,
Kismet-Errolls).
•
Shear zones off a
N-S strike will have mineralisation associated with a stockwork of
quartz veins (Ironclad, Silver Lining, Old Mill). Orientation of
the shear will dictate the dips of the shears. Shears that strike
120° tend to dip steeply to the east. Shears that strike 050-060°
dip flatly to moderately northwest or southeast.
•
Infilled quartz
vein stockworks within shear zones of the vanadium-titanium
Barrambie Sill (White Dingo, Cove, Lost Chance).
•
Infilled
quartz-filled ferruginous saddle reef (or drag-fold) structures
(Scheelite Gold Mine, Dohertys).
|
Drill hole Information
|
All
drill summary data material to the understanding of the exploration
results has been included in the above announcement to which this
table is attached.
|
Data aggregation methods
|
Intercepts tabulated in Appendix 2 are based on a minimum
intercept of 10 gram*meters, lower cut off of 0.6g/t Au and a
maximum internal dilution of 1m. The historic results reported
consist of grade widths greater than 10ppm. No top assay cut was
applied.
|
Relationship between mineralisation widths and intercept
lengths
|
All
holes were drilled perpendicular to the interpreted orientation of
known, mineralised structures. Intercepts reported use down-hole
lengths.
|
Diagrams
|
Representative geological and drill location plans and cross
sections are included in the above announcement to which this table
is attached.
|
Balanced reporting
|
It
is not practical to report all historical exploration results from
the Barrambie gold project. Selected historical intercepts have
been re-reported by Neometals to highlight the prospectivity of the
region. Full drillhole details can be found in the publicly
available historical annual reports listed in this
table.
|
Other substantive exploration data
|
See
ASX announcements 17th April 2018, 8th November 2017, 11th
September 2017 and 6th December 2013 for further information
regarding the Barrambie deposit.
|
Further work
|
Further work is discussed in the document.
|