REG - Savannah Resources - New Lithium Mineralisation Identified at Project
22/01/2025 07:15
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RNS Number : 2626U Savannah Resources PLC 22 January 2025
22 January 2025
Savannah Resources Plc
(AIM: SAV) ('Savannah', or the 'Company')
Extensive New Lithium Mineralisation Identified at the Barroso Lithium Project
Savannah Resources plc (AIM: SAV) ('Savannah' or the 'Company'), the developer
of the Barroso Lithium Project (the 'Project') in Portugal, Europe's largest
spodumene lithium deposit, is pleased to announce further excellent results
from rock chip sampling completed as part of the ongoing exploration programme
at the Project. These results provide a firm indication that significant
follow up targets exist on the Project's licence areas in addition to the
potential extensions of the existing orebodies.
Highlights:
· Lab generated assay results from exploration works on both the C-100
and Aldeia (Block B) Mining Licences have shown that lithium mineralisation
within the two licence areas is extensive.
C-100 Licence:
· New mineralised pegmatites have been identified at the western end of
the C-100 licence, which provide further targets for follow up work.
· Extensions to the known lithium mineralisation at Carvalha da Baccora
and Altos dos Cortiços have been confirmed, increasing the potential of these
areas. Significant lithium mineralisation from rock chip samples include:
o From Carvalha da Bacora: 1.66% Li₂O; 1.5% Li₂O; 1.75% Li₂O; 1.46%
Li₂O
o From Alto dos Corticos: 3.01% Li₂O; 1.9% Li₂O
Aldeia Licence, Block B:
· Reconnaissance rock chip and channel sampling on Aldeia Block B has
highlighted multiple new lithium bearing pegmatites which are beyond
Savannah's initial estimation. Significant lithium mineralisation includes:
o Rock chips: 2.11% Li₂O and 1.32% Li₂O
Channel samples:
o 6m @ 1.39% Li₂O from Trench 1
o 14m @ 1.01% Li₂O from Trench 1b
o 4m @ 2.08% Li₂O and 4m @ 2.62% Li₂O from Trench 2
Light and Detection ('LIDAR') Survey:
· The first LIDAR drone survey conducted over the Project has
identified several historical tin mining areas hidden by vegetation. Savannah
will follow up these targets as at Grandão and Pinheiro, zones of historical
mining indicate a possible association between the spodumene and tin bearing
pegmatites.
Conclusions:
· These results reiterate the significant potential which exists to add
to Savannah's current 28Mt at 1.05% Li(2)O (at 0.5% Li(2)O cut-off) JORC
resource inventory in the future.
Savannah's Chief Executive Officer, Emanuel Proença said, "The results from
the surface exploration which our team undertook are truly exciting. All of
these results come from targets which have received little or no significant
exploration work to date and are separate to the Project's five existing
orebodies, all of which themselves have known extensions we are still to fully
define. While there remains much work to do as a result of these initial
high-grade chip and channel samples, the early conclusion is very clear: the
Barroso Lithium Project remains highly prospective for further spodumene
lithium resource delineation.
"We are firmly focused on the many workstreams required for the Definitive
Feasibility Study and enablement of the Project's startup. However, we can and
will continue to develop these, and other, additional exploration targets at
the same time. In this way, we can build a pipeline of opportunities to
increase the Project's existing resources and life of mine over time.
Furthermore, as our experience on the C-100 licence has shown, the full extent
of the mineralisation is easily underestimated from outcrops alone. For
example, at Grandão, outcropping pegmatite is found mainly at the top of the
hill with no indications of subsurface continuity. Through subsequent drilling
however, Grandão has now been delineated as the largest orebody at the
Project.
"It's great to be able to add significant further exploration upside to our
already compelling European lithium development story."
Further Information
Savannah has completed a field exploration programme of rock chip sampling and
mapping to identify further mineralised pegmatite targets for future follow up
drill programmes (Figure 1). The pegmatite field within the C-100 and
adjoining Aldeia Licence B licence areas is extensive and is controlled by a
broad east - west trending structural corridor. To date Savannah has
concentrated most of its work on the main pegmatite clusters at Grandão,
Reservatório, Pinheiro, NOA and Aldeia Block A. Some initial preliminary
evaluations have been carried out at several locations including Piagro Negro
and Carvalha da Bacora which demonstrated their prospectivity. The field
programme concentrated on locating more pegmatites with lithium mineralisation
at the western end of the C-100 licence, and on the Aldeia Block B licence
area, which have only had a limited amount of historical exploration work
carried out.
Figure 1: Project summary map showing location of rock chip sampling &
mapped pegmatites
Access in these areas was very limited in places due to the amount of dense
undergrowth requiring a significant amount of clearing to assess an area in
detail. However, the team managed to conduct a comprehensive programme,
collecting 110 samples in total.
Aldeia Block B licence area
In the Aldeia Block B licence area, several northeast trending pegmatite
bodies seen in the western part of the Block follow the same trend as the
pegmatite at the Reservatório deposit, and rock chip sampling has shown them
to contain significant lithium mineralisation (Figure 2). Two of the larger
outcrops are seen to align along the same strike, similar to what is seen at
Reservatório, and could represent a part buried pegmatite with approximately
500m of strike length. In the eastern part of the Block, two distinct north -
south trending clusters of pegmatites have been sampled in detail with channel
samples collected across available faces of the pegmatite. Significant Aldeia
Block B results are as follows:
Rock chips: 2.11% Li₂O and 1.32% Li₂O
Channel samples:
· 6m @ 1.39% Li₂O from Trench 1
· 14m @ 1.01% Li₂O from Trench 1b
· 4m @ 2.08% Li₂O and 4m @ 2.62% Li₂O from Trench 2
Figure 2. Aldeia Block B potential showing location of significant rock chip
and channel samples
In addition, several historical tin mining areas were evident from Savannah's
recently flown LIDAR (Light detection and ranging survey), which was able to
map the underlying topography in fine detail through the vegetation cover.
While not the main focus of the exploration programme, these tin mining areas
are of potential interest as significant amounts of lithium mineralisation may
be associated with these pegmatite bodies. Further assessment is required but
at Grandão and Pinheiro there are also zones of historical mining peripheral
to the main pegmatite bodies that indicate a possible association between the
spodumene and tin bearing pegmatites.
C-100 licence area
At Carvalha da Bacora, on the C-100 licence area, previous drilling (see RNS
announcements dated 25 May 2017 and 6 September 2018) had intersected a west
dipping pegmatite body that contained significant mineralisation which
included:
· 26m at 1.09% Li₂O from 17m in 18CDBRC002*
· 12m at 1.22% Li₂O from 50m in SAC2
*Assay corrected from that reported in the Company's RNS dated 6 September
2018. The Carvalha da Bacora target and this assay do not feature in any JORC
Resource estimations for the Project and had no impact on the Project's
economics, as reported in the June 2023 Scoping Study.
The mapping was able to locate further pegmatite bodies to the south of the
drilling (Figure 3) and rock chip sampling highlighted these pegmatites as
lithium bearing with significant results at Carvalha da Bacora including:
1.75% Li₂O; 1.66% Li₂O; 1.5% Li₂O; 1.46% Li₂O.
This area will be the target for follow up work, with the aim of carrying out
further preliminary reverse circulation drilling to define the extent of the
lithium mineralisation.
Figure 3. Carvalha da Bacora potential showing significant drill intersections
and rock chip sample location
At Altos dos Corticos, there is a pegmatite body that outcrops in a forestry
road cutting that can be traced to the north on satellite imagery. The trend
of the pegmatite is north - south and it extends for approximately 600m up to
the major ridge line where it is seen to outcrop in a large fire break
clearing. The Altos Corticos pegmatite zone contains areas of historical tin
workings and rock chip sampling from this zone returned significant lithium
mineralisation including 3.01% Li₂O and 1.9% Li₂O.
This zone has only had a very limited amount of exploration work on it to date
and is worthy of further evaluation so its full potential can be understood.
Results to date have indicated that there could be a significant zone of
lithium mineralisation that will be the focus of future follow up exploration
work.
A third area of pegmatite occurrence is found at the western end of the
licence. Called Altos da Urreta, the area is marked by small, isolated
outcrops and sub outcrops of pegmatite consisting of small blocks visible
above the surface vegetation. There is evidence that the previous holders of
the licence carried out a trenching programme in the area and mapped an east -
west trending pegmatite. However, this area has been backfilled and there is
little evidence of pegmatite apart from small pegmatite rocks and boulders in
the general vicinity. While no high-grade lithium mineralisation was
encountered there were several samples that contained anomalous Li₂O,
greater than 0.1% Li₂O, with two of the samples being above 0.5% Li₂O. The
limited outcrop highlights that more work needs to be carried out to fully
assess the potential of the area.
Conclusion
The results of the mapping programme have continued to highlight the enormous
potential to discover and delineate further resources within Savannah's
Barroso Lithium Project and in particular the C-100 and Aldeia Block B mining
licences.
The surface mapping highlighted that pegmatite outcrop is often randomly
dispersed and, from Savannah's experience on the C-100 licence, is often not
indicative of the full extent of the associated mineralisation. For example,
at Reservatório, pegmatite outcrop was limited to just two locations at the
eastern and western end of the deposit, but Savannah's drill programme
highlighted the continuity of the pegmatite body (Figure 4). This was also
evident at Grandão where the pegmatite is found mainly at the top of the hill
and no indications of subsurface continuity were evident. Grandão has now
been delineated through drilling as the largest orebody at the Project. At
Pinheiro outcropping pegmatite was confined to three restricted areas and
drilling has confirmed continuity of the pegmatite below the surface.
Hence, Savannah is encouraged by the findings from this field programme,
indicating that significant follow up targets exist on the Project's licence
areas in addition to extensions of the existing orebodies. This highlights
that the Barroso pegmatite field is a major lithium bearing province and that
Savannah is ideally placed to add to its already considerable lithium
resource.
Figure 4. Outlining pegmatite outcrop vs actual extent of pegmatite body at
Reservatório and NOA
Competent Person and Regulatory Information
The information in this announcement that relates to exploration results is
based upon information compiled by Mr Dale Ferguson, Technical Director of
Savannah Resources Limited. Mr Ferguson is a Member of the Australasian
Institute of Mining and Metallurgy (AusIMM) and has sufficient experience
which is relevant to the style of mineralisation and type of deposit under
consideration and to the activity which he is undertaking to qualify as a
Competent Person as defined in the December 2012 edition of the "Australasian
Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves"
(JORC Code) and is a Qualified Person under the AIM Rules. Mr Ferguson
consents to the inclusion in the report of the matters based upon the
information in the form and context in which it appears.
Regulatory Information
This Announcement contains inside information for the purposes of the UK
version of the market abuse regulation (EU No. 596/2014) as it forms part of
United Kingdom domestic law by virtue of the European Union (Withdrawal) Act
2018 ("UK MAR").
Savannah - Enabling Europe's energy transition.
**ENDS**
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For further information please visit www.savannahresources
(http://www.savannahresources) .com or contact:
Savannah Resources PLC Tel: +44 20 7117 2489
Emanuel Proença, CEO
SP Angel Corporate Finance LLP (Nominated Advisor & Broker) Tel: +44 20 3470 0470
David Hignell/ Charlie Bouverat (Corporate Finance)
Grant Barker/Abigail Wayne (Sales & Broking)
Camarco (UK Financial PR) Tel: +44 20 3757 4980
Gordon Poole/ Emily Hall / Nuthara Bandara
Portugal Media Relations
Savannah Resources: Antonio Neves Costa, Communications Manager Tel: +351 962 678 912
LPM: Herminio Santos/ Jorge Coelho / Margarida Pinheiro Tel: +351 218 508 110
About Savannah
Savannah Resources is a mineral resource development company and the sole
owner of the Barroso Lithium Project (the 'Project') in northern Portugal, the
largest battery grade spodumene lithium resource outlined to date in Europe.
Through the Project, Savannah will help Portugal to play an important role in
providing a long-term, locally sourced, lithium raw material supply for
Europe's lithium battery value chain. Once in operation the Project will
produce enough lithium (contained in c.190,000tpa of spodumene concentrate)
for approximately half a million vehicle battery packs per year, and hence
make a significant contribution towards the European Commission's Critical Raw
Material Act goal of a minimum 10% of European endogenous lithium production
from 2030. Savannah is being supported in its development goals by its
strategic partner and largest shareholder, AMG Critical Materials N.V., the
global critical materials business.
Savannah is focused on the responsible development and operation of the
Barroso Lithium Project so that its impact on the environment is minimised and
the socio-economic benefits that it can bring to all its stakeholders are
maximised.
The Company is listed and regulated on the London Stock Exchange's Alternative
Investment Market (AIM) and trades under the ticker "SAV".
APPENDIX 1 - Rock Chip Locations from Mapping Program.
Prospect SampleID Sample Type NAT_East NAT_North Trench Loc Li₂O_pct2
Carvalha da Bacora S01232 Rock chip 598514 4608548 0.15
Carvalha da Bacora S01233 Rock chip 598511 4608525 0.04
Carvalha da Bacora S01234 Rock chip 598514 4608522 0.09
Carvalha da Bacora S01235 Rock chip 598465 4608169 1.66
Carvalha da Bacora S01236 Rock chip 598454 4608168 1.5
Carvalha da Bacora S01237 Rock chip 598459 4608157 1.75
Carvalha da Bacora S01238 Rock chip 598462 4608150 1.46
Carvalha da Bacora S01239 Rock chip 598462 4608142 1.06
Carvalha da Bacora S01240 Rock chip 598461 4608133 0.79
Carvalha da Bacora S01241 Rock chip 598488 4608167 0.09
Carvalha da Bacora S01242 Rock chip 598601 4608164 0.71
Carvalha da Bacora S01243 Rock chip 598585 4608193 0.2
Carvalha da Bacora S01244 Rock chip 598611 4608217 1.09
Carvalha da Bacora S01245 Rock chip 598625 4608177 0.34
Carvalha da Bacora S01246 Rock chip 598480 4608208 0.02
Carvalha da Bacora S01247 Rock chip 598452 4607950 0.08
Carvalha da Bacora S01248 Rock chip 598514 4607950 0.17
Carvalha da Bacora S01249 Rock chip 598567 4607875 0.04
Carvalha da Bacora S01250 Rock chip 598612 4607952 0.21
Alto dos Corticos S01251 Rock chip 597836 4608674 0.08
Alto dos Corticos S01252 Rock chip 597817 4608727 0.02
Alto dos Corticos S01253 Rock chip 597889 4608589 0.04
Alto dos Corticos S01254 Rock chip 597793 4608755 0.05
Alto dos Corticos S01255 Rock chip 597817 4608811 0.39
Alto dos Corticos S01256 Rock chip 597845 4608863 0.1
Alto dos Corticos S01257 Rock chip 597863 4608857 3.01
Alto dos Corticos S01258 Rock chip 597911 4608879 0.36
Alto dos Corticos S01259 Rock chip 597865 4608886 0.23
Alto da Urreta S01260 Rock chip 597366 4609493 0.04
Alto da Urreta S01261 Rock chip 597365 4609496 0.02
Alto da Urreta S01262 Rock chip 597354 4609491 0.03
Alto da Urreta S01263 Rock chip 597354 4609498 0.02
Alto da Urreta S01264 Rock chip 597356 4609505 0.01
Alto da Urreta S01265 Rock chip 597352 4609524 0.14
Alto da Urreta S01266 Rock chip 597348 4609526 0.02
Alto dos Corticos S01267 Rock chip 597901 4609036 0.53
Alto dos Corticos S01268 Rock chip 597909 4609053 0.7
Alto dos Corticos S01269 Rock chip 597910 4609066 1.9
Alto da Urreta S01270 Rock chip 597333 4609530 0.03
Alto da Urreta S01271 Rock chip 597324 4609552 0.04
Alto da Urreta S01272 Rock chip 597282 4609590 0.03
Alto da Urreta S01273 Rock chip 597319 4609594 0.01
Alto da Urreta S01274 Rock chip 597228 4609606 0.03
Alto da Urreta S01275 Rock chip 597258 4609568 0.04
Alto da Urreta S01276 Rock chip 597251 4609580 0.06
Alto da Urreta S01277 Rock chip 597140 4609678 0.01
Alto da Urreta S01278 Rock chip 597234 4609731 0.07
Alto da Urreta S01279 Rock chip 597186 4609760 0.71
Alto da Urreta S01280 Rock chip 596991 4609764 0.29
Alto da Urreta S01281 Rock chip 596993 4609749 0.14
Alto da Urreta S01282 Rock chip 597019 4609681 0.03
Alto da Urreta S01283 Rock chip 597011 4609699 0.59
Alto da Urreta S01284 Rock chip 597019 4609722 0.13
Alto da Urreta S01285 Rock chip 596977 4609686 0.03
Alto da Urreta S01286 Rock chip 596946 4609682 0.23
Aldeia B A001 Chip Sample 600718 4608462 0.14
Aldeia B A002 Chip Sample 600676 4608335 0.53
Aldeia B A003 Chip Sample 600675 4608273 2.52
Aldeia B A004 Chip Sample 600317 4608228 2.11
Aldeia B A005 Chip Sample 600342 4608356 0.75
Aldeia B A006 Chip Sample 599723 4608595 0.14
Aldeia B A007 Chip Sample 599296 4608458 0.04
Aldeia B A008 Chip Sample 599326 4608460 1.32
Aldeia B A009 Chip Sample 599358 4608466 0.08
Aldeia B S01022 Rock chip 600694 4608151 Aldeia B 01_1b 1.51
Aldeia B S01023 Rock chip 600693 4608151 Aldeia B 01_1b 1.4
Aldeia B S01024 Rock chip 600692 4608151 Aldeia B 01_1b 2.69
Aldeia B S01025 Rock chip 600691 4608151 Aldeia B 01_1b 0.55
Aldeia B S01026 Rock chip 600690 4608151 Aldeia B 01_1b 1.32
Aldeia B S01027 Rock chip 600689 4608151 Aldeia B 01_1b 1.23
Aldeia B S01028 Rock chip 600688 4608151 Aldeia B 01_1b 1.29
Aldeia B S01029 Rock chip 600687 4608151 Aldeia B 01_1b 1.21
Aldeia B S01030 Rock chip 600686 4608151 Aldeia B 01_1b 0.22
Aldeia B S01031 Rock chip 600685 4608151 Aldeia B 01_1b 1.42
Aldeia B S01032 Rock chip 600684 4608151 Aldeia B 01_1b 0.82
Aldeia B S01033 Rock chip 600683 4608151 Aldeia B 01_1b 0.08
Aldeia B S01034 Rock chip 600682 4608151 Aldeia B 01_1b 0.13
Aldeia B S01035 Rock chip 600681 4608151 Aldeia B 01_1b 0.21
Aldeia B S01036 Rock chip 600680 4608151 Aldeia B 01_1b 0.06
Aldeia B S01037 Rock chip 600679 4608151 Aldeia B 01_1b 0.05
Aldeia B S01038 Rock chip 600678 4608151 Aldeia B 01_1b 0.06
Aldeia B S01039 Rock chip 600677 4608151 Aldeia B 01_1b 0.03
Aldeia B S01040 Rock chip 600676 4608151 Aldeia B 01_1b 0.02
Aldeia B S01041 Rock chip 600675 4608151 Aldeia B 01_1b 0.03
Aldeia B S01042 Rock chip 600674 4608151 Aldeia B 01_1b 0.06
Aldeia B S01043 Rock chip 600673 4608151 Aldeia B 01_1b 0.07
Aldeia B S01044 Rock chip 600672 4608151 Aldeia B 01_1b 0.03
Aldeia B S01045 Rock chip 600671 4608152 Aldeia B 01_2b 0.03
Aldeia B S01075 Rock chip 600696 4608175 Aldeia B 01_2b 0.06
Aldeia B S01076 Rock chip 600695 4608175 Aldeia B 01_2b 0.03
Aldeia B S01077 Rock chip 600694 4608176 Aldeia B 01_2b 0.03
Aldeia B S01078 Rock chip 600693 4608176 Aldeia B 01_2b 0.02
Aldeia B S01079 Rock chip 600693 4608177 Aldeia B 01_2b 0.03
Aldeia B S01080 Rock chip 600683 4608260 Aldeia B 02_1 1.16
Aldeia B S01081 Rock chip 600682 4608260 Aldeia B 02_1 2.24
Aldeia B S01082 Rock chip 600681 4608259 Aldeia B 02_1 2.15
Aldeia B S01083 Rock chip 600680 4608259 Aldeia B 02_1 2.76
Aldeia B S01084 Rock chip 600677 4608267 Aldeia B 02_2 1.83
Aldeia B S01085 Rock chip 600676 4608267 Aldeia B 02_2 2.93
Aldeia B S01086 Rock chip 600675 4608266 Aldeia B 02_2 3.9
Aldeia B S01087 Rock chip 600674 4608266 Aldeia B 02_2 1.81
Aldeia B S01088 Rock chip 600679 4608329 Aldeia B 02_1b 0.03
Aldeia B S01089 Rock chip 600678 4608330 Aldeia B 02_1b 0.02
Aldeia B S01090 Rock chip 600678 4608331 Aldeia B 02_1b 0.62
Aldeia B S01091 Rock chip 600677 4608332 Aldeia B 02_1b 0.81
Aldeia B S01092 Rock chip 600677 4608332 Aldeia B 02_1b 2.45
Aldeia B S01093 Rock chip 600676 4608333 Aldeia B 02_1b 2.26
Aldeia B S01094 Rock chip 600676 4608334 Aldeia B 02_1b 1.75
Aldeia B S01095 Rock chip 600675 4608335 Aldeia B 02_1b 0.46
Aldeia B S01096 Rock chip 600675 4608336 Aldeia B 02_1b 0.04
APPENDIX 2 - JORC 2012 Table 1
JORC Table 1 Section 1 Sampling Techniques and Data
Criteria JORC Code Explanation Commentary
Sampling techniques · Nature and quality of sampling (e.g. cut channels, random chips, or · The samples consisted of random chips of available pegmatite
specific specialised industry standard measurement tools appropriate to the outcrop, selected to give a representative sample of the rock forming the
minerals under investigation, such as down hole gamma sondes, or handheld XRF outcrop and channel samples across continuous outcrop. The rock chips and
instruments, etc). These examples should not be taken as limiting the broad channel samples were collected and placed in pre-numbered sample bag and the
meaning of sampling. bag sealed.
· Include reference to measures taken to ensure sample representivity · The form of the pegmatite was assessed to find the best vantage
and the appropriate calibration of any measurement tools or systems used. to get a sample that is representative of the style of mineralisation. Where
an outcrop presented a face that was greater than a metre, chips of the rock
· Aspects of the determination of mineralisation that are Material to face were selected across the face and placed in the sample bag. Where the
the Public Report. In cases where 'industry standard' work has been done this sample was made of isolated blocks appearing above the vegetation, a
would be relatively simple (e.g. 'reverse circulation drilling was used to collection of chips from the outcropping blocks were taken and placed in the
obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for sample bag. Where a pegmatite showed continuity across the strike, then
fire assay'). In other cases more explanation may be required, such as where continuous channel samples were taken to get a better understanding of the
there is coarse gold that has inherent sampling problems. Unusual commodities true grade of the pegmatite.
or mineralisation types (e.g. submarine nodules) may warrant disclosure of
detailed information. · The outcropping pegmatites are often silicified remnants that
have resisted erosion and assessment of the mineralisation is difficult. The
lithium mineralisation is predominantly in the form of Spodumene, which on
weathered surfaces is not readily evident. Therefore to best assess the
geochemical character of the outcrop several chips from around the outcrop are
taken or where possible channel samples were taken.
Drilling techniques · Drill type (e.g. core, reverse circulation, open-hole hammer, rotary • No drilling was carried out during this program.
air blast, auger, Bangka, sonic, etc) and details (e.g. core diameter, triple
or standard tube, depth of diamond tails, face-sampling bit or other type,
whether core is oriented and if so, by what method, etc).
Drill sample recovery · Method of recording and assessing core and chip sample recoveries and · No drilling was carried out during this program.
results assessed.
· Measures taken to maximise sample recovery and ensure representative
nature of the samples.
· Whether a relationship exists between sample recovery and grade and
whether sample bias may have occurred due to preferential loss/gain of
fine/coarse material.
Logging · Whether core and chip samples have been geologically and · No drilling was carried out during this program.
geotechnically logged to a level of detail to support appropriate Mineral
Resource estimation, mining studies and metallurgical studies.
· Whether logging is qualitative or quantitative in nature. Core (or
costean, channel, etc) photography.
· The total length and percentage of the relevant intersections logged.
Sub-sampling techniques and sample preparation · If core, whether cut or sawn and whether quarter, half or all core · Samples were random rock chips of available outcrop, or
taken. continuous channels, no sub sampling has taken place.
· If non-core, whether riffled, tube sampled, rotary split, etc and · The sampling was conducted using industry standard field sampling
whether sampled wet or dry. techniques and were considered appropriate for the program that was
undertaken.
· For all sample types, the nature, quality and appropriateness of the
sample preparation technique. · Due to the reconnaissance nature of the surface sampling, and
randomness of the rock chips along with the coarse nature of the
· Quality control procedures adopted for all sub-sampling stages to mineralisation, field duplicates were not considered appropriate as form of
maximise representivity of samples. quality control.
· Measures taken to ensure that the sampling is representative of the · Every effort was made to ensure that the samples were
in situ material collected, including for instance results for field representative and not biased in any way.
duplicate/second-half sampling.
· Whether sample sizes are appropriate to the grain size of the
material being sampled.
Quality of assay data and laboratory tests · The nature, quality and appropriateness of the assaying and · Samples were received, sorted, labelled, and dried.
laboratory procedures used and whether the technique is considered partial or
total. · Samples were crushed to 70% less than 2mm, riffle split off 250g,
pulverise split to better than 85% passing 75 microns and 5g was split of for
· For geophysical tools, spectrometers, handheld XRF instruments, etc, assaying.
the parameters used in determining the analysis including instrument make and
model, reading times, calibrations factors applied and their derivation, etc. · The samples were analysed using ALS Laboratories ME-MS89L Super
Trace method which combines a sodium peroxide fusion with ICP-MS
· Nature of quality control procedures adopted (e.g. standards, blanks, instrumentation utilising collision/reaction cell technologies to provide the
duplicates, external laboratory checks) and whether acceptable levels of lowest detection limits available.
accuracy (i.e. lack of bias) and precision have been established.
· A prepared sample (0.2g) is added to sodium peroxide flux, mixed
well and then fused in at 670°C. The resulting melt is cooled and then
dissolved in 30% hydrochloric acid. This solution is then analysed by ICP-MS
and the results are corrected for spectral inter-element interferences.
· The final solution is then analysed by ICP-MS, with results
corrected for spectral inter-element interferences.
· Standards/blanks were inserted on a per batch basis due to the
small amount of samples sent for analysis.
· No duplicate samples were added.
· The use of QA/QC controls for reconnaissance field rock chip
samples is less critical as the aim is to gain indicative results to assess
mineralisation rather than absolute results for assessing the nature of the
mineral deposit. The use of standards and blanks on a per batch process is
considered appropriate for the style of sampling used.
· A QA/QC review of all information indicated that all assays were
satisfactory.
Verification of sampling and assaying · The verification of significant intersections by either independent · All information was internally audited by company personnel.
or alternative company personnel.
· No drilling was carried out.
· The use of twinned holes.
· Savannah's experienced project geologists supervised all
· Documentation of primary data, data entry procedures, data processes.
verification, data storage (physical and electronic) protocols.
· All field data is entered into a custom sample sheet and then
· Discuss any adjustment to assay data. into excel spreadsheets at site and subsequently validated as it is imported
into the centralised Access database.
· Hard copies of sampling data are stored in the local office and
electronic data is stored on the company's cloud drive.
· Results were reported as Li (ppm) and were converted to a
percentage by dividing by 10,000 and then to Li(2)O% by multiplying by 2.153.
Location of data points · Accuracy and quality of surveys used to locate drill holes (collar · The coordinate of each rock chip sample or channel was taken at
and down-hole surveys), trenches, mine workings and other locations used in the time of collecting using a handheld GPS with an accuracy of 5m.
Mineral Resource estimation.
· The grid system used is WSG84 Zone29N.
· Specification of the grid system used.
· An accurate, aerial topographic survey was obtained with accuracy
· Quality and adequacy of topographic control. of +/- 0.5m, and used to verify the location of the sample.
Data spacing and distribution · Data spacing for reporting of Exploration Results. · The surface sampling program was of a reconnaissance nature and
therefore sample locations was dependant on available outcrop, which was
· Whether the data spacing and distribution is sufficient to establish variable depending on terrain and vegetation cover.
the degree of geological and grade continuity appropriate for the Mineral
Resource and Ore Reserve estimation procedure(s) and classifications applied. · The data spacing is not considered appropriate to assess grade
continuity.
· Whether sample compositing has been applied.
· Some compositing of rock chips was carried out in areas where
outcrop was spread out and rock chips from each small area would be added to
the sample bag.
Orientation of data in relation to geological structure · Whether the orientation of sampling achieves unbiased sampling of · Often the pegmatite outcrop is limited in extent and strike and
possible structures and the extent to which this is known, considering the dip of the body is hard to distinguish, therefore random chip samples are
deposit type. taken across the face. Where there is an obvious orientation of pegmatite,
channel samples were taken from across the face
· If the relationship between the drilling orientation and the
orientation of key mineralised structures is considered to have introduced a · Due to the random nature of outcropping pegmatite, it is possible
sampling bias, this should be assessed and reported if material. that some orientation bias is included in the sample.
Sample security · The measures taken to ensure sample security. · Samples were delivered to a courier and chain of custody is
managed by Savannah.
Audits or reviews · The results of any audits or reviews of sampling techniques and data. · Internal company auditing based on previous programs is carried
out and an external review will be carried out by the resource consultant to
assure that all data collection and QA/QC procedures were conducted to
industry standards.
JORC Table 1 Section 2 Reporting of Exploration Results
Criteria JORC Code explanation Commentary
Mineral tenement and land tenure status · Type, reference name/number, location and ownership including · All work was completed inside the Mina do Barroso project C-100
agreements or material issues with third parties such as joint ventures, and within the company's Aldeia Block B tenement.
partnerships, overriding royalties, native title interests, historical sites,
wilderness or national park and environmental settings. · Savannah has received written confirmation from the DGEG that
under article 24 of Decree-Law no. 88/90 of March 16 being relevant
· The security of the tenure held at the time of reporting along with any justification based on the resources allocated exploited and intended,
known impediments to obtaining a license to operate in the area. Savannah has been approved an expansion up to 250m of C100 mining concession
in specific areas where a resource has been defined and the requirement for
the expansion can be justified.
Exploration done by other parties · Acknowledgment and appraisal of exploration by other parties. · Limited exploration work has been carried out by previous
operators.
· No historic information has been included in the Mineral Resource
estimates.
Geology · Deposit type, geological setting and style of mineralisation. · The lithium mineralisation is predominantly in the form of
Spodumene-bearing pegmatites which are hosted in meta-pelitic and mica
schists, and occasionally carbonate schists of upper Ordovician to lower
Devonian age. The pegmatites vary in thickness from 5m-109m.
Drill hole information · A summary of all information material to the under-standing of the · No drilling was carried out.
exploration results including a tabulation of the following information for
all Material drill holes:
· easting and northing of the drill hole collar .
· elevation or RL (Reduced Level - elevation above sea level in metres)
of the drill hole collar
· dip and azimuth of the hole
· down hole length and interception depth
· hole length
· If the exclusion of this information is justified on the basis that the
information is not Material and this exclusion does not detract from the
understanding of the report, the Competent Person should clearly explain why
this is the case.
Data aggregation methods · In reporting Exploration Results, weighting averaging techniques, · No aggregation or weighting of the results was applied.
maximum and/or minimum grade truncations (e.g. cutting of high grades) and
cut-off grades are usually Material and should be stated. · No high-grade cuts have been applied to reported grades.
· Where aggregate intercepts incorporate short lengths of high grade · Metal equivalent values are not being reported; however Li is
results and longer lengths of low grade results, the procedure used for such reported as ppm and converted to the oxide Li(2)O for resource purposes. The
aggregation should be stated and some typical examples of such aggregations conversion factor used is to divide the Li value by 10,000 and multiplying by
should be shown in detail. 2.153 to represent the value as a percentage.
· The assumptions used for any reporting of metal equivalent values
should be clearly stated.
Relationship between mineralisation widths and intercept lengths · These relationships are particularly important in the reporting of · The rock chip samples were from the random locations on an outcrop
Exploration Results. and is not representative of true width of the mineralised body. In places
where there was continuity in the strike direction of the pegmatite and enough
· If the geometry of the mineralisation with respect to the drill hole of the face was exposed then continuous channel samples were taken.
angle is known, its nature should be reported.
· It was not always possible to assess the true strike and dip of the
· If it is not known and only the down hole lengths are reported, there pegmatite being sampled. In places where this could be assessed the
should be a clear statement to this effect (e.g. 'down hole length, true width orientation data was recorded.
not known').
Diagrams · Appropriate maps and sections (with scales) and tabulations of · A relevant plan showing the location of all samples is included
intercepts should be included for any significant discovery being reported. within this release.
These should include, but not be limited to a plan view of drill hole collar
locations and appropriate sectional views.
Balanced Reporting · Accuracy and quality of surveys used to locate drill holes (collar · All relevant results available have been previously reported.
and down-hole surveys), trenches, mine workings and other locations used in
Mineral Resource estimation.
· Where comprehensive reporting of all Exploration Results is not
practicable, representative reporting of both low and high grades and/or
widths should be practiced to avoid misleading reporting of Exploration
Results.
Other substantive exploration data · Other exploration data, if meaningful and material, should be reported · Drilling has been carried out in several locations and four major
including (but not limited to): geological observations; geophysical survey mineral deposits have been reported previously. Geological mapping and rock
results; geochemical survey results; bulk samples - size and method of chip sampling has been conducted over other areas of C-100 license and
treatment; metallurgical test results; bulk density, groundwater, geotechnical adjoining Aldeia license areas.
and rock characteristics; potential deleterious or contaminating substances.
Further work · The nature and scale of planned further work (e.g. tests for lateral · The present program was designed to assess the extent of lithium
extensions or depth extensions or large- scale step-out drilling). mineralisation within the C-100 and Aldeia Block B license area, new
pegmatites were discovered and known areas of mineralisation were extended. A
· Diagrams clearly highlighting the areas of possible extensions, follow up program will be initiated at a later stage consisting of trenching
including the main geological interpretations and future drilling areas, and drilling to assess the true extent of the pegmatites and corresponding
provided this information is not commercially sensitive. lithium mineralisation.
· Diagrams showing the extent of mapped pegmatites are included.
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