TIDMSAV
RNS Number : 6998U
Savannah Resources PLC
16 July 2018
16 July 2018
Savannah Resources Plc
Grandao Continues to Grow - More Robust Lithium Intersections
from the
Mina do Barroso Lithium Project, Portugal
Savannah Resources plc (AIM: SAV and SWB: SAV) ('Savannah' or
the 'Company'), the AIM quoted resource development company, is
pleased to announce further encouraging results from the ongoing
reverse circulation ('RC') and diamond drill ('DD') programme at
the Mina do Barroso Lithium Project ('Mina do Barroso' or the
'Project'), located in Portugal (Figure 1). A total of 181 holes
for 15,345m have now been drilled to date across three primary
targets of Grandao, Reservatorio and NOA. To view the press release
with the illustrative maps and diagrams please use the following
link:
http://www.rns-pdf.londonstockexchange.com/rns/6998U_1-2018-7-15.pdf
HIGHLIGHTS:
-- Ongoing RC and DD at both the Grandao and Reservatorio
Deposits has intersected lithium mineralisation over significant
widths
-- Drilling continues to expand the boundaries of the known
mineralised pegmatites demonstrating the Project's potential for
further increases in the existing 14Mt at 1.1% Li O Mineral
Resource Estimate
-- Key results include:
Grandao and Grandao Extended
- 25m at 1.56% Li(2) O from 56m in 18GRARC52 diamond tail
- 22m at 1.41% Li(2) O from 54m in 18GRARC51 diamond tail
- 15m at 1.32% Li(2) O from 96m in 18GRARC79
- 25m at 1.05% Li(2) O from 13m in 18GRARC93
- 25m at 1.02% Li(2) O from 21m in 18GRARC99
- 49m at 1.09% Li(2) O from 35m in 18GRARC100
- 20m at 1.42% Li(2) O from 125m in 18GRARC103
- 22m at 1.05% Li(2) O from 19m in 18GRADD01
- 23.7m at 0.99% Li(2) O from 17.2m in 18GRADD02
- 48.9m at 1.33% Li(2) O from 6.9m and 21m at 1.22% Li(2) O from 129m in 18GRADD006
Reservatorio
- 32m at 1.18% Li(2) O from 36m in 18RESDD02
- Diamond drilling was completed primarily to obtain lithium
bearing pegmatite for the metallurgical test work programme
-- Phase 3 of the metallurgical test work programme continues to progress well
-- A second diamond drill rig is due to arrive on site shortly
to commence geotechnical drilling to support the fast-tracked
Feasibility Study
-- Detailed discussions continue with potential Feasibility Study specialists
Savannah's CEO, David Archer said: "The drill programme
continues to deliver encouraging results, which will go towards
further increasing what is already the largest spodumene lithium
Mineral Resource Estimate in Western Europe. We are upping the
drilling tempo with the addition of a third rig and drilling, which
commenced a little under one year ago, now totals over 15km in
length and constitutes one of the most intensive drill programmes
undertaken in Portugal in recent years.
"In offsite activities, we have narrowed the field of parties
interested in undertaking a Feasibility Study of a mine development
at Mina do Barroso. We are intent on teaming with a group with
best-in-class lithium experience and capabilities to ensure we
maximise the significant value potential of our Project."
Figure 1. Mina do Barroso Project summary map showing the
location of deposits and drilling completed - see PDF
Grandao and Grandao Extended
A total of 113 drill holes for 9,812m (17GRARC01-113) have been
completed and results for drill holes 18GRARC79-103,
18GRADD001-006, and diamond tails on 18GRARC051-052 have now been
received and returned further encouraging results (Tables 1 and
Figure 2-5).
Drilling is continuing to target the confirmation of the
Exploration Target(*) to the west and southwest of the main Grandao
Deposit and has returned further encouraging zones of lithium
mineralisation which are summarised below. The further encouraging
results point towards the excellent potential to further expand the
existing Mineral Resource Estimate.
*Cautionary Statement: The potential quantity and grade of the
Exploration Targets is conceptual in nature, there has been
insufficient exploration work to estimate a mineral resource and it
is uncertain if further exploration will result in defining a
mineral resource.
Drilling to date at Grandao and Grandao Extended has now defined
a virtually continuous zone of shallowly westerly dipping pegmatite
from surface to a vertical depth of over 100m and covering a zone
of approximately 600m long and up to 500m wide, confirming the
excellent potential of the zone.
Table 1. Summary of drill results for Grandao flat lying
pegmatite using a 0.5% Li(2) O cut-off
Hole rL From To Down
ID Prospect Northing Easting Azimuth Dip EOH (m) (m) hole Grade
%
Interval Li(2)
(Deg) (Deg) (m) (m) O
---------- ----------- ---------- -------- ------- ------- -------- ------- --------- ------
18GRARC79 Grandao 4607883.24 601578.24 535.79 0 -90 146.00 96.00 111.00 15.00 1.32
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
122.00 126.00 4.00 1.05
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC80 Grandao 4607984.00 601508.00 502.00 0 -90 155.20 102.30 144.40 Pegmatite
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- -----------------
18GRARC81 Grandao 4608007.00 601535.00 501.00 0 -90 173.30 13.00 17.00 4.00 0.92
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
114.00 120.00 6.00 0.72
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
120.00 164.20 Pegmatite
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- -----------------
18GRARC82 Grandao 4607897.00 601978.00 569.00 0 -90 48.00 0.00 6.00 6.00 1.13
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC84 Grandao 4607748.00 601742.00 572.00 0 -90 150.00 61.00 67.00 6.00 1.46
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
87.00 95.00 8.00 1.38
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRADD01 Grandao 4608012.00 601885.00 573.00 0 -90 77.10 19.00 41.00 22.00 1.05
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
53.00 58.00 5.00 1.21
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRADD02 Grandao 4607985.00 601862.00 573.00 0 -90 64.70 17.20 40.90 23.70 0.99
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRADD03 Grandao 4607984.00 601819.00 586.00 0 -90 132.70 28.00 35.00 7.00 0.87
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
51.00 55.00 4.00 0.78
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
77.00 89.00 12.00 0.94
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
93.00 103.00 10.00 0.87
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRADD05 Grandao 4608007.00 601950.00 594.00 0 -90 67.60 24.40 29.00 4.60 1.28
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
33.00 42.00 9.00 1.15
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRADD06 Grandao 4607983.00 601784.00 581.00 0 -90 176.40 6.90 55.80 48.90 1.33
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
69.00 90.00 21.00 0.97
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
98.00 103.00 5.00 0.72
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
109.00 116.00 7.00 0.79
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
120.00 126.00 6.00 0.98
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
129.00 150.00 21.00 1.22
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC52 Grandao 4607948.87 601634.42 520.83 0 -90 150.75 56.00 81.00 25.00 1.56
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
104.75 111.65 6.90 1.29
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC51 Grandao 4608025.27 601601.13 503.62 0 -90.00 144.90 54.00 76.00 22.00 1.41
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
91.25 95.00 3.75 1.02
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC86 Grandao 4607657.00 601864.00 579.00 0 -90.00 89.00 23.00 27.00 4.00 0.75
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC90 Grandao 4607862.00 601544.00 548.00 0 -90.00 138.00 110.00 118.00 8.00 1.44
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
Diamond
tail
18GRARC91 Grandao 4607805.00 601412.00 525.00 0 -90.00 187.60 pending
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC92 Grandao 4607856.00 601770.00 523.00 53 -60.00 22.00 6.00 19.00 13.00 0.83
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC93 Grandao 4607963.00 601757.00 532.00 115 -60.00 120.00 13.00 38.00 25.00 1.05
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
95.00 104.00 9.00 1.24
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC94 Grandao 4608040.00 601514.00 525.00 0 -90.00 132.00 54.00 59.00 5.00 0.72
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC97 Grandao 4607715.00 601867.00 551.00 0 -90.00 65.00 25.00 31.00 6.00 0.64
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC98 Grandao 4607987.00 602010.00 574.00 0 -90.00 63.00 10.00 20.00 10.00 0.89
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC99 Grandao 4608066.00 601763.00 547.00 90 -60.00 110.00 21.00 46.00 25.00 1.02
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
53.00 59.00 6.00 1.16
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC100 Grandao 4608054.00 601741.00 537.00 90 -60.00 84.00 11.00 27.00 16.00 1.06
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
35.00 84.00 49.00 1.09
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
inc 66.00 84.00 18.00 1.48
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC101 Grandao 4608002.00 601703.00 518.00 0 -90.00 100.00 55.00 78.00 23.00 0.89
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
18GRARC103 Grandao 4607850.00 601713.00 533.00 90 -64.00 159.00 45.00 53.00 8.00 1.07
---------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
61.00 67.00 6.00 1.36
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
125.00 145.00 20.00 1.42
----------------------- ----------- ---------- ------- -------- ------- ------- -------- ------- --------- ------
Note: All holes highlighted in grey require diamond tails to
reach the primary pegmatite target
Figure 2. Summary of drilling at Grandao showing significant
assay results - see PDF
Figure 3. Grandao Cross Section 4,608,050North (see Figure 2 for
location of cross section) - see PDF
Figure 4. Grandao Cross Section 4,608,000North (see Figure 2 for
location of cross section) - see PDF
Figure 5. Grandao Cross Section 4,607,850North (see Figure 2 for
location of cross section) - see PDF
Reservatorio
A total of four drill holes for 336.3m (18RESDD01-04) have been
completed and results for all drill holes have now been received
and returned further encouraging results (Tables 2 and Figure 6-7).
The holes were primarily drilled to provide material for
metallurgical test work, but the holes also doubled as infill holes
to help increase the confidence level in the Reservatorio Mineral
Resource Estimate from Inferred to Indicated.
Table 2. Summary of drill results for Reservatorio drilling
using a 0.5% Li(2) Ocut-off
Hole rL From To Down
ID Prospect Northing Easting Azimuth Dip EOH (m) (m) hole Grade
%
Interval Li(2)
(Deg) (Deg) (m) (m) O
-------------- ----------- ---------- -------- ------ ------ ------ ------ --------- ------
18RESDD01 Reservatorio 4609175.12 599873.89 602.38 150 -60 68.00 18.00 36.00 18.00 0.75
-------------- ----------- ---------- ------- -------- ------ ------ ------ ------ --------- ------
59.10 64.00 4.90 1.36
-------------------------- ----------- ---------- ------- -------- ------ ------ ------ ------ --------- ------
18RESDD02 Reservatorio 4609188.43 599782.73 612.58 150 -60 91.20 36.00 68.00 32.00 1.18
-------------- ----------- ---------- ------- -------- ------ ------ ------ ------ --------- ------
18RESDD03 Reservatorio 4609172.24 599704.71 610.45 150 -60 97.40 30.00 42.00 12.00 1.06
-------------- ----------- ---------- ------- -------- ------ ------ ------ ------ --------- ------
45.00 60.00 15.00 0.97
-------------------------- ----------- ---------- ------- -------- ------ ------ ------ ------ --------- ------
63.00 73.00 10.00 0.78
-------------------------- ----------- ---------- ------- -------- ------ ------ ------ ------ --------- ------
18RESDD04 Reservatorio 4609027.92 599595.08 604.25 150 -60 79.70 49.00 57.00 8.00 1.05
-------------- ----------- ---------- ------- -------- ------ ------ ------ ------ --------- ------
Figure 6. Summary of drilling at Reservatorio showing
significant assay results - see PDF
Figure 7. Reservatorio Oblique Cross Section (See Figure 8 for
cross section location) - see PDF
Ongoing Drill Programme
Diamond drilling with the current drill rig is focusing on
completing diamond tails on the RC holes which have failed to reach
their target depths as they are beyond the reach of the RC drill
rig.
An additional diamond drill rig is due to arrive on site shortly
to help speed up development activities and will focus on the
geotechnical drilling required for the detailed pit designs as part
of the Feasibility Study.
Phase 3 Metallurgical Test Work
Progress with the Feasibility Study metallurgical test work is
continuing to progress well, with work remaining on track to be
completed on schedule in Q3 2018.
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). 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.
The Information in this report that relates to Mineral Resources
is based on information compiled by Mr Paul Payne, a Competent
Person who is a Fellow of the Australasian Institute of Mining and
Metallurgy. Mr Payne is a full-time employee of Payne Geological
Services. Mr Payne has sufficient experience that is relevant to
the style of mineralisation and type of deposit under consideration
and to the activity being undertaken to qualify as a Competent
Person as defined in the 2012 Edition of the "Australasian Code for
Reporting of Exploration Results, Mineral Resources and Ore
Reserves". Mr Payne consents to the inclusion in the report of the
matters based on his information in the form and context in which
it appears.
This announcement contains inside information for the purposes
of Article 7 of Regulation (EU) 596/2014.
**S**
For further information please visit www.savannahresources.com
or contact:
David Archer Savannah Resources plc Tel: +44 20 7117
2489
David Hignell / Dugald Northland Capital Partners Tel: +44 20 3861
J. Carlean (Nominated Adviser) Ltd 6625
Christopher Raggett / Camille finnCap Ltd Tel: +44 20 7220
Gochez (Broker) 0500
Grant Barker (Equity Adviser) Whitman Howard Tel: +44 020 7659
1225
Charlotte Page / Lottie St Brides Partners Ltd Tel: +44 20 7236
Wadham (Financial PR) 1177
About Savannah
We are a diversified resources group (AIM: SAV) with a portfolio
of energy metals projects - lithium in Portugal and copper in Oman
- together with the world-class Mutamba Heavy Mineral Sands Project
in Mozambique, which is being developed in a consortium with the
global major Rio Tinto. We are committed to serving the interests
of our shareholders and to delivering outcomes that will improve
the lives of our staff and the communities we work with.
The group is listed and regulated on AIM and the Company's
ordinary shares are also available on the Börse Stuttgart (SWB)
under the ticker "SAV".
APPIX 1 - JORC 2012 Table 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria JORC Code explanation Commentary
Sampling
techniques * Nature and quality of sampling (e.g. cut channels, * Reverse circulation (HQ size) samples were taken on
random chips, or specific specialised industry either 1 intervals for pegmatite or 4m composites in
standard measurement tools appropriate to the surrounding schist. RC samples were collected in
minerals under investigation, such as down hole gamma large plastic bags from an on-board rig splitter and
sondes, or handheld XRF instruments, etc). These a 4-6kg representative sample taken for analysis.
examples should not be taken as limiting the broad
meaning of sampling.
------------------------------------------------------------ -----------------------------------------------------------------------
* Include reference to measures taken to ensure sample * Drilling was conducted on a nominal 80m by 40m
representivity and the appropriate calibration of any spacing based on geological targets using RC drilling
measurement tools or systems used. technology, an industry standard drilling technique.
Drilling rods are 3m long and 1 sample is taken for
each rod interval.
* Collar surveys are carried using hand held GPS with
an accuracy to within 5m, and the z direction was
determined by satellite derived elevation data and is
accurate to less than a metre.
* A downhole survey for each hole was completed
------------------------------------------------------------ -----------------------------------------------------------------------
* Aspects of the determination of mineralisation that * The lithium mineralization is predominantly in the
are Material to the Public Report. form of Spodumene-bearing pegmatites, the pegmatites
are unzoned and vary in thickness from 15m-39m.
* In cases where 'industry standard' work has been done
this would be relatively simple (e.g. 'reverse * Down hole sampling is carried out on either a 1 or 4m
circulation drilling was used to obtain 1 m samples interval from which 4-6kg of pulverized material (RC)
from which 3 kg was pulverised to produce a 30 g was pulverized to produce a 50g charge for assaying
charge for fire assay'). In other cases, more
explanation may be required, such as where there is
coarse gold that has inherent sampling problems.
Unusual commodities or mineralisation types (e.g.
submarine nodules) may warrant disclosure of detailed
information.
------------------------------------------------------------ -----------------------------------------------------------------------
Drilling
techniques * Drill type (e.g. core, reverse circulation, open-hole * RC drilling at a diameter of 120mm is a form of
hammer, rotary air blast, auger, Bangka, sonic, etc) reverse circulation drilling requiring annular drill
and details (e.g. core diameter, triple or standard rods. Compressed air is pumped down the outer tube
tube, depth of diamond tails, face-sampling bit or and the sample is collected from the open face
other type, whether core is oriented and if so, by drilling bit and blown up the inner tube.
what method, etc).
------------------------------------------------------------ -----------------------------------------------------------------------
Drill sample
recovery * Method of recording and assessing core and chip * Field assessment of sample volume. A theoretical
sample recoveries and results assessed. dried sample mass was estimated to be within the
range of 18 kg to 24 Kg, 70% of samples are within
the expected range. Lower than average sample
recovery is recorded only for the very top of the
drill hole due to air and sample losses into the
surrounding soil
------------------------------------------------------------ -----------------------------------------------------------------------
* Measures taken to maximise sample recovery and ensure * RC drilling sample weights were monitored to ensure
representative nature of the samples. samples were maximized. Samples were carefully loaded
into a splitter and split in the same manner ensuring
that the sample split to be sent to the assay
laboratories were in the range of 4-6kg.
------------------------------------------------------------ -----------------------------------------------------------------------
* Whether a relationship exists between sample recovery * No obvious relationships
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 * RC holes were logged in the field at the time of
and geotechnically logged to a level of detail to sampling.
support appropriate Mineral Resource estimation,
mining studies and metallurgical studies.
* Each 1m sample interval was carefully homogenized and
assessed for lithology, colour, grainsize, structure
* Whether logging is qualitative or quantitative in and mineralization.
nature. Core (or costean, channel, etc) photography.
* A representative chip sample produced from RC
* The total length and percentage of the relevant drilling was washed and taken for each 1m sample and
intersections logged. stored in a chip tray which was photographed
------------------------------------------------------------ -----------------------------------------------------------------------
Sub-sampling
techniques * If core, whether cut or sawn and whether quarter, * RC samples were split by the rotary splitter on the
and sample half or all core taken. drill rig and sampled dry
preparation
* If non-core, whether riffled, tube sampled, rotary
split, etc and whether sampled wet or dry.
------------------------------------------------------------ -----------------------------------------------------------------------
* For all sample types, the nature, quality and * The sampling was conducted using industry standard
appropriateness of the sample preparation technique. techniques and were considered appropriate
------------------------------------------------------------ -----------------------------------------------------------------------
* Quality control procedures adopted for all * The 4m composites were collected using a spear with
sub-sampling stages to maximise representivity of the spear inserted into the bag at a high angle and
samples. pushed across the sample to maximise representivity
of the sample
------------------------------------------------------------ -----------------------------------------------------------------------
* Measures taken to ensure that the sampling is * Every effort was made to ensure that the samples were
representative of the in-situ material collected, representative and not bias in anyway
including for instance results for field
duplicate/second-half sampling.
------------------------------------------------------------ -----------------------------------------------------------------------
* Whether sample sizes are appropriate to the grain * All samples were taken once they went through the
size of the material being sampled. on-board splitter from the drill rig. Depending on
the rock types on average a 4-6kg sample was sent to
the lab for analysis and the remaining material
averaged 18-24kg and remains stored on site for any
further analysis required
------------------------------------------------------------ -----------------------------------------------------------------------
Quality
of assay * The nature, quality and appropriateness of the * Samples were received, sorted, labelled and dried
data and assaying and laboratory procedures used and whether
laboratory the technique is considered partial or total.
tests * Samples were crushed to 70% less than 2mm, riffle
split off 250g, pulverize split to better than 85%
passing 75 microns and 5g was split of for assaying
* The samples were analysed using ALS laboratories
ME-MS89L Super Trace method which combines a sodium
peroxide fusion with ICP-MS instrumentation utilizing
collision/reaction cell technologies to provide the
lowest detection limits available.
* A prepared sample (0.2g) is added to sodium peroxide
flux, mixed well and then fused in at 670degC. The
resulting melt is cooled and then dissolved in 30%
hydrochloric acid. This solution is then analysed by
Inductively Coupled Plasma - Mass Spectrometry 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.
------------------------------------------------------------ -----------------------------------------------------------------------
* Not used
* For geophysical tools, spectrometers, handheld XRF
instruments, etc, the parameters used in determining
the analysis including instrument make and model,
reading times, calibrations factors applied and their
derivation, etc.
------------------------------------------------------------ -----------------------------------------------------------------------
* Nature of quality control procedures adopted (e.g. * Standards/blanks and duplicates we inserted on a 1:20
standards, blanks, duplicates, external laboratory ratio for both to samples taken
checks) and whether acceptable levels of accuracy
(i.e. lack of bias) and precision have been
established. * Duplicate sample regime is used to monitor sampling
methodology and homogeneity.
* A powder chip tray for the entire hole is completed
for both RC and RAB. A sub-sample is sieved from the
large RC bags at site into chip trays over the
pegmatite interval to assist in geological logging.
These are photographed and kept on the central
database
* Routine QA/QC controls for the method ME-MS89L
include Blanks, certified reference standards of
Lithium and duplicate samples. Samples are assayed
within runs or batches up to 40 samples. At the
fusion stage that quality control samples are
included together with the samples so all samples
follow the same procedure until the end. Fused and
diluted samples are prepared for ICP-MS analysis. ICP
instrument is calibrated through appropriate
certified standards solutions and interference
corrections to achieve strict calibration fitting
parameters. Each 40 samples run is assayed with 2
blanks, 2 certified standards and one duplicate
samples and results are evaluated accordingly.
* A QA/QC review of all information indicated that all
assays were inside reasonable tolerance levels.
------------------------------------------------------------ -----------------------------------------------------------------------
Verification
of sampling * The verification of significant intersections by * All information was internally audited by company
and assaying either independent or alternative company personnel. personnel
------------------------------------------------------------ -----------------------------------------------------------------------
* The use of twinned holes. * Several historical holes we twinned for comparison
purposes with the modern drilling
------------------------------------------------------------ -----------------------------------------------------------------------
* Documentation of primary data, data entry procedures, * Savannah's experienced project geologists supervise
data verification, data storage (physical and all processes.
electronic) protocols.
* All field data is entered into a custom log sheet and
then into excel spreadsheets (supported by look-up
tables) at site and subsequently validated as it is
imported into the centralized Access database.
* Hard copies of logs, survey and sampling data are
stored in the local office and electronic data is
stored on the main server.
------------------------------------------------------------ -----------------------------------------------------------------------
* Discuss any adjustment to assay data. * 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 * Accuracy and quality of surveys used to locate drill * The coordinate of each drill hole was taken at the
points holes (collar and down-hole surveys), trenches, mine time of collecting using a handheld GPS with an
workings and other locations used in Mineral Resource accuracy of 5m.
estimation.
* The grid system used is WSG84
* Specification of the grid system used.
* Topographic accuracy was +/- 5m
* Quality and adequacy of topographic control.
------------------------------------------------------------ -----------------------------------------------------------------------
Data spacing
and * Data spacing for reporting of Exploration Results. * Drilling was on a nominal 80m by 40m spacing and
distribution based on geological targets
* Whether the data spacing and distribution is
sufficient to establish the degree of geological and * Drill data is not currently at sufficient spacing to
grade continuity appropriate for the Mineral Resource define a mineral resource.
and Ore Reserve estimation procedure(s) and
classifications applied.
* Some samples were composited on a 4m basis based on
geological criteria, these areas were all outside the
* Whether sample compositing has been applied. pegmatite bodies where 1m sampling was completed
------------------------------------------------------------ -----------------------------------------------------------------------
Orientation
of data * Whether the orientation of sampling achieves unbiased * Drilling was orientated perpendicular to the known
in relation sampling of possible structures and the extent to strike of the pegmatites
to which this is known, considering the deposit type.
geological
structure * Drill holes we orientated at either -60 degrees or
* If the relationship between the drilling orientation -90 degrees depending on the dip of the pegmatite in
and the orientation of key mineralised structures is an attempt to get drill holes as close to true width
considered to have introduced a sampling bias, this as possible
should be assessed and reported if material.
------------------------------------------------------------ -----------------------------------------------------------------------
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 * Internal company auditing
reviews * The results of any audits or reviews of sampling
techniques and data.
------------------------------------------------------------ -----------------------------------------------------------------------
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this
section.)
Criteria JORC Code explanation Commentary
Mineral
tenement * Type, reference name/number, location and ownership * All work was completed inside the 75% owned Mina do
and land including agreements or material issues with third Barroso project C-100
tenure status parties such as joint ventures, partnerships,
overriding royalties, native title interests,
historical sites, wilderness or national park and
environmental settings.
* The security of the tenure held at the time of
reporting along with any known impediments to
obtaining a license to operate in the area.
--------------------------------------------------------------- ------------------------------------------------------------------
Exploration * N/A
done by * Acknowledgment and appraisal of exploration by other
other parties parties.
--------------------------------------------------------------- ------------------------------------------------------------------
Geology
* Deposit type, geological setting and style of * The lithium mineralization is predominantly in the
mineralisation. 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 are unzoned and vary in
thickness from 15m-109m. Lithium is present in most
aplite compositions.
--------------------------------------------------------------- ------------------------------------------------------------------
Drill hole
Information * A summary of all information material to the * Grid used WSG84
understanding of the exploration results including a
tabulation of the following information for all
Material drill holes: * No material data has been excluded from the release
o easting and northing of the drill * See table 1 and 2 in the main release for hole
hole collar co-ordinates
o elevation or RL (Reduced Level -
elevation above sea level in metres)
of the drill hole collar
o dip and azimuth of the hole
o down hole length and interception
depth
o 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 * In reporting Exploration Results, weighting averaging * Intercepts are weighted averages using a 0.5% Li O
methods techniques, maximum and/or minimum grade truncations cut off with no more than 2m of internal dilution
(e.g. cutting of high grades) and cut-off grades are
usually Material and should be stated.
* Narrow zones of schist (less than 5m) have been
included in the significant intercepts where they are
* Where aggregate intercepts incorporate short lengths mineralised
of high grade results and longer lengths of low grade
results, the procedure used for such aggregation
should be stated and some typical examples of such
aggregations should be shown in detail.
* The assumptions used for any reporting of metal
equivalent values should be clearly stated.
--------------------------------------------------------------- ------------------------------------------------------------------
Relationship
between * These relationships are particularly important in the * Exploration results are reported as down hole
mineralisation reporting of Exploration Results. intercepts
widths and
intercept
lengths * If the geometry of the mineralisation with respect to * No metal equivalent values have been used.
the drill hole angle is known, its nature should be
reported.
* The drill holes are detailed in the table in the main
release and the pegmatite at Reservatorio appears to
* If it is not known and only the down hole lengths are dip at around 40degrees to the north west and at
reported, there should be a clear statement to this Grandao it is sub horizontal
effect (e.g. 'down hole length, true width not
known').
--------------------------------------------------------------- ------------------------------------------------------------------
Diagrams
* Appropriate maps and sections (with scales) and * Relevant diagrams and maps have been included in the
tabulations of intercepts should be included for any main body of the release.
significant discovery being reported These should
include, but not be limited to a plan view of drill
hole collar locations and appropriate sectional
views.
--------------------------------------------------------------- ------------------------------------------------------------------
Balanced * All relevant results available have been reported.
reporting * 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 * Other exploration data, if meaningful and material, * The interpretation of the results is consistent with
exploration should be reported including (but not limited to): the observations and information obtained from the
data geological observations; geophysical survey results; data collected.
geochemical survey results; bulk samples - size and
method of treatment; metallurgical test results; bulk
density, groundwater, geotechnical and rock
characteristics; potential deleterious or
contaminating substances.
--------------------------------------------------------------- ------------------------------------------------------------------
Further
work * The nature and scale of planned further work (e.g. * Further rock chip sampling, channel sampling and RC
tests for lateral extensions or depth extensions or drilling. Once planning has been completed the detail
large-scale step-out drilling). will be provided
* Diagrams clearly highlighting the areas of possible
extensions, including the main geological
interpretations and future drilling areas, provided
this information is not commercially sensitive.
--------------------------------------------------------------- ------------------------------------------------------------------
This information is provided by RNS, the news service of the
London Stock Exchange. RNS is approved by the Financial Conduct
Authority to act as a Primary Information Provider in the United
Kingdom. Terms and conditions relating to the use and distribution
of this information may apply. For further information, please
contact rns@lseg.com or visit www.rns.com.
END
MSCUVSRRWOABAUR
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