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| Share Name | Share Symbol | Market | Type | Share ISIN | Share Description |
|---|---|---|---|---|---|
| Savannah Resources Plc | LSE:SAV | London | Ordinary Share | GB00B647W791 | ORD 1P |
| Price Change | % Change | Share Price | Bid Price | Offer Price | High Price | Low Price | Open Price | Shares Traded | Last Trade | |
|---|---|---|---|---|---|---|---|---|---|---|
| -0.03 | -0.90% | 3.30 | 3.20 | 3.30 | 3.35 | 3.25 | 3.35 | 3,795,764 | 16:35:15 |
| Industry Sector | Turnover | Profit | EPS - Basic | PE Ratio | Market Cap |
|---|---|---|---|---|---|
| Gold Ores | 0 | -2.86M | -0.0016 | -20.31 | 59.41M |
From Apr 2019 to Apr 2024
TIDMSAV
RNS Number : 1552Z
Savannah Resources PLC
13 December 2017
Savannah Resources Plc / Index: AIM / Epic: SAV / Sector: Mining
13 December 2017
Savannah Resources Plc
Outstanding Lithium Results identified at the Mina do Barroso Lithium Project, Portugal Zone of continuous lithium mineralisation over 100m in width intersected
Savannah Resources plc (AIM: SAV) ('Savannah' or 'the Company'), the AIM quoted resource development company, is pleased to announce new and outstanding results from the ongoing reverse circulation ('RC') drill programme at the Mina do Barroso Lithium Project ('Mina do Barroso' or the 'Project') located in Portugal (Figure 1). The drill programme, which is aiming to generate a JORC - 2012 compliant Mineral Resource Estimate, has returned significant intersections of lithium mineralisation. To view the press release with the illustrative maps and diagrams please use the following link: http://www.rns-pdf.londonstockexchange.com/rns/1552Z_-2017-12-12.pdf
HIGHLIGHTS:
-- Total of 66 holes for 5,558m completed to date as part of the ongoing RC drill programme
-- Drill results from three deposits being targeted confirm the outstanding potential of Mina do Barroso - Savannah believes these intercepts represent some of the best lithium spodumene intersections ever reported for a European deposit
-- Grandao:
o Mineralised zone over 100m intersected: results from recent drilling has recorded the broadest and most significant results for the project to date. Key results include:
-- 109m at 1.04% Li O from surface (uncut), including 52m at 1.32% Li O in 17GRARC17
-- 71m at 1.06% Li O from 88m, including 57m at 1.2% Li O in 17GRARC19
-- 31m at 1.2% Li O from surface in 17GRARC12
-- 25m at 1.15% Li O from 36m in 17GRARC23
o New high-grade zone discovered: drill testing of a newly identified sub-vertical pegmatite body has been successful, identifying a new high-grade zone of mineralisation. Results from the first drill hole include:
-- 25m at 1.49% Li O from 32m including 14m at 2.1% Li O in 17GRARC20
o Drill programme extended - an additional 16 holes have been added to the drilling programme to help outline the full potential of the Grandao deposit
o Pegmatite and structural experts on site, to assist in developing the mineralisation model for these outstanding new results at Grandao
-- Reservatorio:
o Deposit expanded - assay results confirm that the lithium mineralisation extends to over 400m strike length, with good down dip extensions of at least 100m. New assay results include:
-- 32m at 1.05% Li O from 78m in 17RESRC17
-- 15m at 1.19% Li O from 79m in 17RESRC16
o Maiden Mineral Resource Estimate for Reservatorio, expected by the end of 2017
-- NOA - further drilling and results pending: drilling of a further 6 holes has confirmed the presence of lithium mineralisation over a 200m strike length together with good down dip extensions of at least 50m and pegmatite widths up to 15m
-- Phase 2 of the metallurgical test work programme underway - samples taken from Grandao, Reservatorio and NOA being tested with results expected in early 2018
Savannah's CEO, David Archer said: "We believe these are outstanding results that represent some of the best lithium spodumene intersections ever reported for a European deposit. Additionally, they highlight the potential of the extensive pegmatite systems in the northern part of Portugal to host major deposits of lithium.
"The results from Grandao are particularly exciting as there are some exceptional widths and high-grades reported and the geometry of what we are seeing suggests that there is potential for a low stripping ratio, open-cut mine development. It is important to remember that all of the results are from deposit areas for which we have a granted mining lease.
"These results continue to underscore the potential of the Mina do Barroso Project to be a strategic upstream feature in the European lithium value chain. From an investment perspective, we see the Project as the closest European analogue to the very successful Australian hard-rock, open cut mine developments which produce highly sought-after lithium spodumene concentrates for international markets.
"Ongoing drilling and metallurgical test work will be used to support an early scoping study around a potential mine development."
Figure 1. Mina do Barroso Project Summary Map showing prospects and 2017 drilling - see PDF link
Grandao
A total of 36 drill holes for 2,809m (17GRARC01-36) have been completed targeting the flat lying pegmatite body at Grandao and two newly identified sub vertical pegmatite bodies nearby the flat body. Results for drill holes 17GRARC10 to 23 have now been received and returned the most significant set of results for the Project to date (Table 1-3 and Figure 2-3).
Drilling targeted at intersecting the near surface, flat or shallowly west dipping pegmatite body has continued to meet with significant success, with extensive mineralisation now being defined. Drilling has confirmed a zone of lithium mineralisation extending to over 400m in length, reaching up to 150m in width and with continuous anomalous mineralisation recorded as deep as 109m below surface. Significant drill results targeting the flat lying pegmatite body are summarised in Table 1.
Table 1. Summary of drill results for Grandao flat lying pegmatite using a 0.2% and 0.5% Li(2) O cut-off
Hot Features
Premium
0.2%Li O Cut-off 0.5%Li O Cut-off
----------- --------------------- ---------------------
Hole ID From Width Grade From Width Grade
----------- ----- ------ ------ ----- ------ ------
17GRARC10 0 16 0.87 4 12 1.09
----------- ----- ------ ------ ----- ------ ------
17GRARC11 NSA
----------- ----- ------ ------ ----- ------ ------
17GRARC12 0 33 1.14 0 31 1.2
----------- ----- ------ ------ ----- ------ ------
17GRARC13 18 16 1.14 18 16 1.14
----------- ----- ------ ------ ----- ------ ------
17GRARC15 12 26 0.79 26 12 1.34
----------- ----- ------ ------ ----- ------ ------
42 11 0.7 43 6 1.01
----------- ----- ------ ------ ----- ------ ------
17GRARC16 22 11 0.65 28 5 1.15
----------- ----- ------ ------ ----- ------ ------
17GRARC17 0 83 1.08 4 52 1.32
----------- ----- ------ ------ ----- ------ ------
89 20 1.17
----------- ----- ------ ------ ----- ------ ------
17GRARC19 0 13 1.24 0 12 1.32
----------- ----- ------ ------ ----- ------ ------
17 6 0.8 17 5 0.91
----------- ----- ------ ------ ----- ------ ------
29 9 0.91 29 8 0.98
----------- ----- ------ ------ ----- ------ ------
88 71 1.06 88 57 1.2
17GRARC21 7 3 0.6
----------- ----- ------ ------ ----- ------ ------
17GRARC22 5 2 0.95
----------- ----- ------ ------ ----- ------ ------
17GRARC23 27 34 1.02 36 25 1.15
----------- ----- ------ ------ ----- ------ ------
It is important to note that a number of angled drill holes will be completed in the vicinity of 17GRARC17 and 19 as part of the ongoing drill programme to confirm the current geological interpretation in this area.
In addition, mapping has highlighted a series of at least four sub-vertical pegmatite bodies, many of which can be traced over 200m in strike and in places reach widths up to 40m. Limited drill testing of two of these bodies to date has met with early success including the identification of a high-grade lithium bearing pegmatite body. Recently received results are summarised in Table 2.
Table 2. Summary of drill results for Grandao new vertical pegmatites using a 0.2% and 0.5% Li(2) O cut-off
0.2%Li O Cut-off 0.5%Li O Cut-off
----------- --------------------- ---------------------
Hole
ID From Width Grade From Width Grade
----------- ----- ------ ------ ----- ------ ------
17GRARC14 36 13 0.63 36 6 0.99
----------- ----- ------ ------ ----- ------ ------
17GRARC18 9 17 0.45 22 4 0.9
----------- ----- ------ ------ ----- ------ ------
40 17 0.37 43 3 0.89
----------- ----- ------ ------ ----- ------ ------
17GRARC20 22 9 0.86 22 5 1.32
----------- ----- ------ ------ ----- ------ ------
32 25 1.49 32 22 1.65
----------- ----- ------ ------ ----- ------ ------
The pegmatite bodies identified to date remain open in all directions; further work is underway including RC drilling, geological and mineralogical mapping to better understand and define the full potential of the Grandao pegmatite bodies.
Table 3. Summarised downhole geology for drill assays received from Grandao
Hole Summarised Downhole Geology
ID
---------- ------------------------------------------------
17GRARC10 Schist 0-3m, Pegmatite/Schist 3-4m; Pegmatite
4-16m; Pegmatite/Schist 16-18m; Schist
18-44m; Schist/Quartz 44-45m; Schist
45-65m; Schist/Quartz 65-68m; Schist
68-73m
---------- ------------------------------------------------
17GRARC11 Schist 0-50m
---------- ------------------------------------------------
17GRARC12 Pegmatite 0-31m; Schist/Pegmatite 31-32m;
Schist 32-50m
---------- ------------------------------------------------
17GRARC13 Schist/Pegmatite 2-3m; Pegmatite 3-9m;
Schist/Pegmatite 9-15m; Pegmatite/Schist
17-18m; Pegmatite 18-35m; Schist/Pegmatite
35-37m; Pegmatite 45-52m; Pegmatite/Schist
52-53m
---------- ------------------------------------------------
17GRARC14 Schist/Pegmatite 35-36m; Pegmatite 36-52m;
Schist/Pegmatite 63-64m; Pegmatite 64-65m;
Schist/Pegmatite 65-66m; Schist/Pegmatite
77-81m
---------- ------------------------------------------------
17GRARC15 Schist/Pegmatite 16-17m; Pegmatite 17-18m;
Schist/Pegmatite 18-19m; Schist/Pegmatite
24-26m; Pegmatite 26-49m; Schist/Pegmatite
49-54m; Pegmatite 54-58m
---------- ------------------------------------------------
17GRARC16 Pegmatite 0-19m; Schist/Pegmatite 26-28m;
Pegmatite 28-34m; Schist/Pegmatite 34-35m
---------- ------------------------------------------------
17GRARC17 Schist/Pegmatite 4-5m; Pegmatite 5-26m;
Schist/Pegmatite 26-29m; Pegmatite 29-52m;
Schist/Pegmatite 52-53m; Pegmatite 53-56m;
Schist/Pegmatite 56-57m; Schist/Pegmatite
59-64m; Pegmatite 64-83m; Schist/Pegmatite
83-84m; Schist/Pegmatite 88-89m; Pegmatite
89-109m
---------- ------------------------------------------------
17GRARC18 Schist/Pegmatite 8-9m; Pegmatite 9-11m;
Schist/Pegmatite 11-13m; Pegmatite 13-26m;
Schist/Pegmatite 26-27m; Pegmatite 43-45m;
Schist/Pegmatite 45-47m; Pegmatite 47-51m;
Schist/Pegmatite 51-52m
---------- ------------------------------------------------
17GRARC19 Pegmatite 0-11m; Schist/Pegmatite 11-13m;
Pegmatite 13-24m; Schist/Pegmatite 24-26m;
Pegmatite 26-27m; Schist/Pegmatite 28-30m;
Pegmatite 30-34m; Schist/Pegmatite 34-35m;
Schist/Pegmatite 36-37m; Pegmatite 37-41m;
Schist/Pegmatite 41-42m; Schist/Pegmatite
48-49m; Pegmatite 49-57m; Schist/Pegmatite
61-62m; Pegmatite 62-63m; Schist/Pegmatite
67-68m; Pegmatite 68-70m; Schist/Pegmatite
70-71m; Schist/Pegmatite 87-88m; Pegmatite
88-158m
---------- ------------------------------------------------
17GRARC20 Pegmatite/Schist 2-4m; Pegmatite 4-6m;
Pegmatite/Schist 6-8m; Schist/Pegmatite
19-20m; Pegmatite 20-27m; Pegmatite/Schist
27-28m; Pegmatite/Schist 31-32m; Pegmatite
32-41m; Pegmatite/Schist 41-42m; Pegmatite
42-57m; Pegmatite/Schist 57-58m
---------- ------------------------------------------------
17GRARC21 Pegmatite/Schist 6-8m; Schist/Pegmatite
8-9m; Pegmatite/Schist 9-12m; Schist/Pegmatite
12-14m; Pegmatite/Schist 14-16m
---------- ------------------------------------------------
17GRARC22 Pegmatite/Schist 5-7m; Pegmatite 7-8m;
Pegmatite/Schist 8-16m; Schist/Pegmatite
20-22m
---------- ------------------------------------------------
17GRARC23 Schist/Pegmatite 9-10m; Pegmatite/Schist
21-28m; Pegmatite 28-52m; Pegmatite/Schist
52-54m; Pegmatite 57-60m; Pegmatite/Schist
60-63m
---------- ------------------------------------------------
Figure 2. Summary of drilling at Grandao showing significant assay results and holes with pending assays - see PDF
Figure 3. RC drill chips from 17GRARC17 which returned a result of 109m at 1.04% Li O (uncut) from surface - see PDF
Reservatorio
A total of 20 RC holes (17RESRC01-20) totalling 1,981m have been completed at Reservatorio and results for the last 6 holes (17RESRC15-20) have now been received (Table 4-5 and Figure 4). Lithium mineralisation has been identified along a 400m strike length and to a depth of at least 100m. Drilling in an area of faulting and shearing on the eastern part of the pegmatite has caused the pegmatite to become weathered resulting in some zones of near surface depletion. Further infill drilling is now required to further define these zones.
Table 4. Summary of drill results for Reservatorio reported at a 0.2% and 0.5% Li(2) O cut-off
0.2%Li O Cut-off 0.5%Li O Cut-off
----------- --------------------- ---------------------
Hole ID From Width Grade From Width Grade
----------- ----- ------ ------ ----- ------ ------
17RESRC15 73 11 0.9 74 8 1.13
----------- ----- ------ ------ ----- ------ ------
17RESRC16 48 18 0.43 51 5 0.81
----------- ----- ------ ------ ----- ------ ------
79 15 1.19 79 19 0.99
----------- ----- ------ ------ ----- ------ ------
17RESRC17 78 46 0.85 78 32 1.05
----------- ----- ------ ------ ----- ------ ------
17RESRC18 80 23 0.39 85 4 0.66
----------- ----- ------ ------ ----- ------ ------
17RESRC19 130 26 0.36 139 7 0.8
----------- ----- ------ ------ ----- ------ ------
17RESRC20 95 27 0.71 98 13 0.87
----------- ----- ------ ------ ----- ------ ------
126 12 0.71 127 9 0.86
----------- ----- ------ ------ ----- ------ ------
Table 5. Summarised downhole geology for drill assays received from Reservatorio
Hole Summarised Downhole Geology
ID
---------- ------------------------------------------------------
17RESRC15 Schist/Pegmatite 74-45m; Pegmatite 75-82m;
Schist/Pegmatite 82-83m; Pegmatite/Schist
89-90m; Pegmatite 90-91m; Schist/Pegmatite
91-92m; Schist/Pegmatite 97-98m; Pegmatite
98-110m; Pegmatite/Schist 110-111m; Schist/Pegmatite
115-116m; Pegmatite 116-117m
---------- ------------------------------------------------------
17RESRC16 Pegmatite 50-57m; Schist/Pegmatite 57-58m;
Schist/Pegmatite 61-65m; Pegmatite/Schist
78-79m; Pegmatite 79-94m; Schist/Pegmatite
94-96m
---------- ------------------------------------------------------
17RESRC17 Schist/Pegmatite 78-79m; Pegmatite 79-111m;
Schist/Pegmatite 111-112m; Pegmatite 114-117m;
Schist/Pegmatite 117-119m
---------- ------------------------------------------------------
17RESRC18 Schist/Pegmatite 66-76m; Pegmatite 76-102m;
Schist/Pegmatite 102-106m; Pegmatite 106-108m;
Schist/Pegmatite 108-109m
---------- ------------------------------------------------------
17RESRC19 Schist/Pegmatite 113-114m; Pegmatite 114-119m;
Schist/Pegmatite 119-121m; Pegmatite 121-149m;
Schist/Pegmatite 149-151m
---------- ------------------------------------------------------
17RESRC20 Schist/Pegmatite 98-99m; Pegmatite 99-110m;
Schist/Pegmatite 110-112m; Schist/Pegmatite
114-116m; Pegmatite 116-136m
---------- ------------------------------------------------------
Figure 4. Summary of drilling at Reservatorio, showing drilling completed and significant assays received - see PDF
NOA Deposit
Drilling at the NOA deposit now totals 10 holes for 768m (17NOARC01-10) with results from 5 holes (17NOARC06-10) still pending. Drilling results from the NOA prospect have been encouraging with 10-15m wide zones of pegmatite being intersected over a strike length of 200m and a down dip depth of around 50m (Figure 5).
Figure 5. Summary of drilling at NOA of holes with pending assays - see PDF
Ongoing Drill Programme
Based on the new results an additional 16 RC drill holes have been added to the programme at Grandao in order to further evaluate the potential of this prospect area.
Lithium Mineralisation
All geological mapping, drill hole logging and metallurgical have confirmed that the predominant lithium mineral (over 95%) is spodumene and to date no lithium mica mineralisation has been identified.
Grandao Mineralisation Model
Portuguese lithium pegmatite expert Professor Alexandre Lima and structural expert Professor Pablo Gumiel are currently on site working with the Savannah team to develop a mineralisation and exploration model based on these very significant new results.
Metallurgical Testwork
A series of scoping tests on a 100kg composite sample from Grandao, Reservatorio and NOA are currently underway at specialist lithium laboratory Nagrom in Perth, to find out the response of the ore to gravity separation. The work will determine the crush size and the density at which a 6% concentrate can be produced and mass yield. These are the three fundamental design parameters for developing a gravity process flow sheet based on the dense medium (DMS) process.
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 Australian 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.
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:
Savannah Resources Tel: +44 20
David Archer plc 7117 2489
David Hignell / Gerry Northland Capital Tel: +44 20
Beaney (Nominated Partners Ltd 3861 6625
Adviser)
Christopher Raggett finnCap Ltd Tel: +44 20
/ Emily Morris (Joint 7220 0500
Broker)
Jon Belliss Beaufort Securities Tel: +44 20
(Joint Broker) Ltd 7382 8300
Charlotte Page / St Brides Partners Tel: +44 20
Lottie Wadham Ltd 7236 1177
(Financial PR)
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.
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 * Method of recording and assessing core and chip * Field assessment of sample volume. A theoretical
recovery 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 are
data verification, data storage (physical and supervised 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 * Internal company auditing
or 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 and * Type, reference name/number, location and ownership * All work was completed inside the 100% owned Mina do
land tenure including agreements or material issues with third Barroso project C-100
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 other * Acknowledgment and appraisal of exploration by 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 * A summary of all information material to the * Grid used WSG84
Information 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
Hole WGS84_East WGS84_North Depth Azimuth Dip
o easting and northing of the drill hole collar ID Actual (m)
o elevation or RL (Reduced Level - elevation above sea ------------ ----------- ------------ ------ -------- ----
level in metres) of the drill hole 17NOARC06 599186 4609429 57 203 -60
collar ------------ ----------- ------------ ------ -------- ----
o dip and azimuth of the hole 17NOARC07 599203 4609464 78 207 -60
o down hole length and interception depth ------------ ----------- ------------ ------ -------- ----
o hole length. 17NOARC08 599006 4609537 90 207 -60
* If the exclusion of this information is justified on ------------ ----------- ------------ ------ -------- ----
the basis that the information is not Material and 17NOARC09 598957 4609556 90 206 -60
this exclusion does not detract from the ------------ ----------- ------------ ------ -------- ----
understanding of the report, the Competent Person 17NOARC10 599076 4609486 69 207 -60
should clearly explain why this is the case. ------------ ----------- ------------ ------ -------- ----
17GRARC25 601736 4607985 90 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC26 601831 4608079 72 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC27 601821 4608025 81 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC28 601964 4608062 50 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC29 601988 4608021 60 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC30 601929 4607967 45 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC31 601759 4608021 159 142 -60
------------ ----------- ------------ ------ -------- ----
17GRARC32 601760 4607859 80 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC33 602005 4608082 60 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC34 601892 4608053 84 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC35 601838 4607966 75 0 -90
------------ ----------- ------------ ------ -------- ----
17GRARC36 601809 460809 78 0 -90
------------ ----------- ------------ ------ -------- ----
--------------- --------------------------------------------------------------- -----------------------------------------------------------------------
Data
aggregation * In reporting Exploration Results, weighting averaging * Low Grade Intercepts are weighted averages using a
methods techniques, maximum and/or minimum grade truncations 0.2% Li O cut off with no more than 3m of internal
(e.g. cutting of high grades) and cut-off grades are dilution
usually Material and should be stated.
* High Grade Intercepts are weighted averages using a
* Where aggregate intercepts incorporate short lengths 0.5% Li O cut off with no more than 2m of internal
of high grade results and longer lengths of low grade dilution
results, the procedure used for such aggregation
should be stated and some typical examples of such
aggregations should be shown in detail. * Narrow zones of schist (less than 5m) have been
included in the significant intercepts where they are
mineralised
* 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 company news service from the London Stock Exchange
END
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