# Savannah Resources Plc Grandao Extended – High Grade Lithium Discovered

- Link: https://www.directorstalkinterviews.com/savannah-resources-plc-grandao-extended-high-grade-lithium-discovered/412748848
- Published: 2018-04-05T07:30:33+01:00
- Author: Giles Arbor

**Savannah Resources plc** (LON:SAV), the AIM quoted resource development company,
has today announced further results from the ongoing reverse circulation (‘RC’) 
drill programme at the Mina do Barroso Lithium Project (‘Mina do Barroso’ or the‘
Project’) in Portugal, where an area of new high-grade lithium mineralisation has
been discovered.

**HIGHLIGHTS:**

· Drill testing of the Exploration Target to the west and southwest of the main 
Grandao Deposit has led to the discovery of new high-grade lithium mineralisation
which has been named “Grandao Extended”

· Key results include:

– 90m at 0.96% Li₂O from surface including 31m at 1.06% Li₂O from surface and 34m
at 1.37% Li₂O from 50m in 18GRARC65

– 31m at 1.42% Li₂O from 47m in 18GRARC63

– 18m at 1.52% Li₂O from 24m in 18GRARC50

– 25m at 1.27% Li₂O from 34m in 18GRARC53

– 11m at 1.71% Li₂O from 45m in 18GRARC46

· Drilling to date at Grandao Extended has defined a zone of pegmatite approximately
300m long and 200m wide confirming the excellent potential of the zone

· Total of 120 holes for 9,600m drilled to date as part of the ongoing RC drill 
programme across three primary targets of Grandao, Reservatorio and NOA

· Drill testing of Piagro Negro, Campo de Futebol and Romainho returned encouraging
first pass results including:

– 15m at 0.4% Li₂O from surface in 18PGNRC01 (Piagro Negro)

– 13m at 0.5% Li₂O from 2m in 18CAMRC02 (Campo de Futebol)

– 6m at 0.85% Li₂O from surface in 18ROMRC05 (Romainho)

· The Hatch Scoping Study is on schedule to be completed towards the end of Q2 2018
together with a further Mineral Resource update

· Phase 3 of the metallurgical test work programme is progressing well and on schedule
to be completed during Q3 2018 – six (480m drilled) out of the eight planned diamond
holes to collect metallurgical drill samples at the Grandao and Reservatorio deposits
have been completed

> **Savannah Resources Plc CEO, David Archer said:** “We are delighted with the 
> consistently excellent results we are seeing from the drilling of the Grandao 
> system. The main Grandao Deposit already extends over a large area of 400m north-
> south and 330m east-west. Grandao Extended is adding to this with a 300m extension
> to the southwest which suggests that much of the Exploration Target in this area
> has the potential to be converted to additional Mineral Resource. It is particularly
> encouraging to see the excellent grades being reported as we believe this will
> only add to the economic appeal of a mine development at Grandao which already
> benefits from near surface mineralisation which should be able to be mined with
> a very low stripping ratio.
> “In parallel, our metallurgical and Scoping Study work continues, and we are on
> track to take the project towards an early development decision regarding a mine
> that we believe has the potential to be the most significant near-term lithium
> development in Europe.
> “First pass exploration drilling of three other deposits within our project (Campo
> de Futebol, Piagro Negro and Romainho) produced encouraging results despite the
> limitations resulting from the necessity of siting the holes on existing tracks.
> I look forward to providing further updates from Mina do Barroso as we continue
> to unlock the value in this exciting project.”

**Grandao**

A total of 76 drill holes for 6,711m (17GRARC01-76) have been completed and results
for drill holes 17GRARC43 to 65 have now been received and returned further very
encouraging results (Table 1)

Drilling targeting the defined Exploration Target to the west and southwest of the
main Grandao deposit has been successful in defining a potentially significant extension
to the Grandao mineralisation, “Grandao Extended”. All holes completed in the area
to date have intersected significant mineralisation with recent results pointing
towards the potential for the zone to be of higher grade than the current Grandao
Mineral Resource.

Drilling to date has defined a zone around 300m long and 200m wide with the widest
intercept returned to date being 90m in 18GRARC65.

Table 1. Summary of drill results for Grandao flat lying pegmatite using a 0.2% 
and 0.5% Li2O cut-off.

  |

Hole ID

  |

0.2% Li₂O Cut-Off

  |

0.5% Li₂O Cut-Off

  |

 |  
 |

From

  |

Width

  |

Li₂O

  |

From

  |

Width

  |

Li₂O

  |  
 |

18GRARC43

  |

32

  |

15

  |

0.79

  |

34

  |

12

  |

0.88

  |  
 |

18GRARC43

  |

51

  |

7

  |

0.56

  |

53

  |

4

  |

0.8

  |  
 |

18GRARC44

  |

8

  |

12

  |

1.06

  |

10

  |

10

  |

1.23

  |  
 |

18GRARC44

  |

25

  |

2

  |

0.28

  |

 |

 |

 |  
 |

18GRARC45

  |

30

  |

16

  |

1.22

  |

30

  |

16

  |

1.22

  |  
 |

18GRARC45

  |

50

  |

8

  |

0.93

  |

50

  |

7

  |

1.01

  |  
 |

18GRARC46

  |

0

  |

4

  |

0.77

  |

0

  |

2

  |

1.15

  |  
 |

18GRARC46

  |

38

  |

23

  |

0.9

  |

45

  |

11

  |

1.71

  |  
 |

18GRARC46

  |

68

  |

1

  |

0.92

  |

68

  |

1

  |

0.92

  |  
 |

18GRARC46

  |

74

  |

7

  |

0.95

  |

75

  |

6

  |

1.05

  |  
 |

18GRARC47

  |

1

  |

7

  |

0.43

  |

1

  |

2

  |

1.03

  |  
 |

18GRARC48

  |

47

  |

17

  |

1.13

  |

47

  |

16

  |

1.19

  |  
 |

18GRARC49

  |

24

  |

16

  |

0.51

  |

26

  |

7

  |

0.58

  |  
 |

 |

 |

 |

 |

37

  |

2

  |

1.07

  |  
 |

18GRARC50

  |

6

  |

2

  |

0.5

  |

6

  |

1

  |

0.78

  |  
 |

18GRARC50

  |

24

  |

19

  |

1.46

  |

24

  |

18

  |

1.52

  |  
 |

18GRARC53

  |

29

  |

36

  |

0.95

  |

34

  |

25

  |

1.27

  |  
 |

18GRARC55

  |

14

  |

13

  |

0.48

  |

22

  |

5

  |

0.87

  |  
 |

18GRARC58

  |

38

  |

6

  |

1.09

  |

38

  |

5

  |

1.24

  |  
 |

18GRARC58

  |

77

  |

7

  |

0.44

  |

79

  |

5

  |

0.55

  |  
 |

18GRARC62

  |

14

  |

8

  |

0.27

  |

43

  |

1

  |

0.51

  |  
 |

18GRARC62

  |

32

  |

20

  |

0.26

  |

63

  |

1

  |

0.5

  |  
 |

18GRARC62

  |

63

  |

1

  |

0.5

  |

72

  |

1

  |

0.5

  |  
 |

18GRARC62

  |

72

  |

1

  |

0.5

  |

 |

 |

 |  
 |

18GRARC63

  |

43

  |

40

  |

1.16

  |

47

  |

31

  |

1.42

  |  
 |

18GRARC64

  |

81

  |

23

  |

0.97

  |

83

  |

20

  |

1.06

  |  
 |

18GRARC65

  |

0

  |

90

  |

0.96

  |

0

  |

31

  |

1.06

  |  
 |

 |

 |

 |

 |

54

  |

34

  |

1.37

  |  
 |   |   |   |

**Piagro Negro**

The pegmatites at Piagro Negro occur as folded northwest to southeast trending gentle
anticlines and synclines plunging towards northwest. Drilling of six holes (18PGNRC01-
06) for 270m targeted at the eastern part of the prospect where access was easy,
and results intersected good widths of mineralized pegmatite (Table 2). Further 
detailed work is now required with a focus on accessing the western part of the 
prospect.

Table 2. Summary of drill results for Piagro Negro reported at a 0.2% and 0.5% Li2O
cut-off

  |

Hole ID

  |

0.2% Li₂O Cut-Off

  |

0.5% Li₂O Cut-Off

  |  
 |

From

  |

Width

  |

Li₂O%

  |

From

  |

Width

  |

Li₂O%

  |  
 |

18PGNRC01

  |

0

  |

15

  |

0.4

  |

0

  |

8

  |

0.52

  |  
 |

18PGNRC02

  |

23

  |

7

  |

0.32

  |

26

  |

1

  |

0.87

  |  
 |

18PGNRC04

  |

0

  |

2

  |

0.24

  |

 |

 |

 |  
 |

18PGNRC04

  |

25

  |

1

  |

0.2

  |

 |

 |

 |  
 |

18PGNRC04

  |

34

  |

2

  |

0.2

  |

 |

 |

 |  
 |

18PGNRC05

  |

15

  |

12

  |

0.29

  |

19

  |

1

  |

1.1

  |  
 |

18PGNRC06

  |

1

  |

12

  |

0.44

  |

2

  |

2

  |

1.4

  |  
 |

18PGNRC06

  |

19

  |

11

  |

0.31

  |

24

  |

1

  |

0.56

  |  
 |

 |

 |

 |

 |

27

  |

1

  |

0.72

  |

 

**Campo de Futebol**

The Lithium pegmatite of Campo Futebol shows a classic S-type fold geometry which
are typical of a major structural zone like the one at Mina do Barroso which hosts
the majority of the pegmatites within the project area. A total of three holes (
18CAMRC01-03) for 145m were completed with drilling intersecting good widths of 
mineralized pegmatites and further work is required to further access the potential
of the prospect area (Table 3).

Table 3. Summary of drill results, Campo de Futebol reported at a 0.2% and 0.5% 
Li2O cut-off

  |

Hole ID

  |

0.2% Li₂O Cut-Off

  |

0.5% Li₂O Cut-Off

  |  
 |

From

  |

Width

  |

Li₂O%

  |

From

  |

Width

  |

Li₂O%

  |  
 |

18CAMRC01

  |

16

  |

2

  |

0.22

  |

 |

 |

 |  
 |

18CAMRC01

  |

26

  |

3

  |

0.22

  |

 |

 |

 |  
 |

18CAMRC02

  |

2

  |

13

  |

0.5

  |

6

  |

2

  |

1.26

  |  
 |

 |

 |

 |

 |

12

  |

2

  |

0.72

  |  
 |

18CAMRC03

  |

3

  |

11

  |

0.43

  |

5

  |

4

  |

0.77

  |

 

**Romainho**

Drilling of five holes (18ROMRC01-05) for 257m at Romainho targeting a series of
pegmatites with an apparent width of over 20m has intersected a thin sub horizontal
pegmatite body up to 6m in width (Table 4). The flat nature of the pegmatite body
has given an exaggerated surface expression of the body. Further mapping and evaluation
of the prospect will now be completed to determine what additional work is required.

Table 4. Summary of drill results for Romainho reported at a 0.2% and 0.5% Li2O 
cut-off

  |

Hole ID

  |

0.2% Li₂O Cut-Off

  |

0.5% Li₂O Cut-Off

  |  
 |

From

  |

Width

  |

Li₂O%

  |

From

  |

Width

  |

Li₂O%

  |  
 |

18ROMRC03

  |

0

  |

2

  |

0.67

  |

0

  |

2

  |

0.67

  |  
 |

18ROMRC04

  |

14

  |

2

  |

0.2

  |

 |

 |

 |  
 |

18ROMRC05

  |

0

  |

6

  |

0.85

  |

1

  |

4

  |

1.07

  |

 

**Ongoing Drill Programme**

Based on the new results additional RC drill holes have been added to the programme
at Grandao, in order to further evaluate the potential of Grandao Extended and the
wider project area.

Following the completion of the diamond drilling for the phase 3 metallurgical test
work programme, the diamond rig will complete the extension of six existing RC holes
to depth to target the newly identified broad zone of sub-vertical lithium mineralisation
identified at depth below the main tabular, near surface Grandao Deposit.

**Metallurgical Test Work**

Diamond drilling at both the Reservatorio and Grandao deposits is progressing well,
with four diamond holes now completed at Reservatorio. The drill core from these
holes is currently being cut and prepared for shipment to Nagrom in Perth for test
work and an additional two holes of a four-hole programme completed at Grandao. 
Work is on track to be completed in Q3 2018.

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