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% Li₂O Mineral Resource Estimate
· Key results include:
Grandao and Grandao Extended
- 25m at 1.56% Li2O from 56m in 18GRARC52 diamond tail
- 22m at 1.41% Li2O from 54m in 18GRARC51 diamond tail
- 15m at 1.32% Li2O from 96m in 18GRARC79
- 25m at 1.05% Li2O from 13m in 18GRARC93
- 25m at 1.02% Li2O from 21m in 18GRARC99
- 49m at 1.09% Li2O from 35m in 18GRARC100
- 20m at 1.42% Li2O from 125m in 18GRARC103
- 22m at 1.05% Li2O from 19m in 18GRADD01
- 23.7m at 0.99% Li2O from 17.2m in 18GRADD02
- 48.9m at 1.33% Li2O from 6.9m and 21m at 1.22% Li2O from 129m in 18GRADD006
Reservatorio
- 32m at 1.18% Li2O 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% Li2O cut-off
Hole ID |
Prospect |
Northing |
Easting |
rL |
Azimuth |
Dip |
EOH |
From (m) |
To (m) |
Down hole |
Grade |
|
|
|
|
(Deg) |
(Deg) |
(m) |
|
|
Interval (m) |
% Li2O |
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 |
18GRARC91 |
Grandao |
4607805.00 |
601412.00 |
525.00 |
0 |
-90.00 |
187.60 |
Diamond tail 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% Li2Ocut-off
Hole ID |
Prospect |
Northing |
Easting |
rL |
Azimuth |
Dip |
EOH |
From (m) |
To (m) |
Down hole |
Grade |
|
|
|
|
(Deg) |
(Deg) |
(m) |
|
|
Interval (m) |
% Li2O |
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.
**ENDS**
For further information please visit www.savannahresources.com or contact:
David Archer |
Savannah Resources plc |
Tel: +44 20 7117 2489 |
David Hignell / Dugald J. Carlean (Nominated Adviser) |
Northland Capital Partners Ltd |
Tel: +44 20 3861 6625 |
Christopher Raggett / Camille Gochez (Broker) |
finnCap Ltd |
Tel: +44 20 7220 0500 |
Grant Barker (Equity Adviser) |
Whitman Howard |
Tel: +44 020 7659 1225 |
Charlotte Page / Lottie Wadham (Financial PR) |
St Brides Partners Ltd |
Tel: +44 20 7236 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".