Operational Update

RNS Number : 8759H
Sula Iron & Gold PLC
13 June 2017
 

Sula Iron & Gold plc / Index: AIM / Epic: SULA / Sector: Natural Resources

13 June 2017

Sula Iron & Gold plc

("Sula" or the "Company")

Operational Update: Phase 3 drilling commences; structural survey identifies new targets and assay results

Sula (AIM: SULA), the gold exploration company focused on Sierra Leone, is pleased to announce that:

 

·     phase 3 drill programme has commenced;

·     17 new target zones for gold mineralisation have been identified through a structural geology review by a leading independent expert commissioned by Sula; and

·     the last of Batch Two assay results have been returned.

 

Phase 3 Drill Programme

Following an initial 1,500m programme carried out in 2015 and the recently completed 3,800m scout programme, Sula will focus Phase 3 drilling on areas of known high grade mineralisation. This drilling programme started on Monday 12 June 2017. The new 5,000m drilling contract with Equity Drilling ("EQD") is focusing primarily on the Sanama Hill and Southern Targets utilising drill rigs that are on site and which were used for the recently completed 3,800m programme. Sanama returned values of up to 15.9 g/t over 3.2m, within 3.65g/t over 21m in the most recent drill programme while the Southern Target showed 5.2g/t over 1.2m.

 

As previously announced, the programme will aim to extend and infill the areas of known high grade mineralisation and to improve the confidence in the geological interpretation and support a more accurate determination of the contained gold.

 

17 New Targets from Detailed Structural Survey

A detailed structural review of the licence has been completed by Tect Geological Consulting ("Tect") with the identification of a total of 19 target zones at Ferensola, including both Sanama Hill and the Southern Target. See Figure 1 below for detail demonstrating the range of identified targets. Tect have worked on projects in Sierra Leone and elsewhere in Africa with a similar structural setting to that observed at Ferensola.

 

http://www.rns-pdf.londonstockexchange.com/rns/8759H_-2017-6-12.pdf

 

 

Figure 1: Tect regional structural interpretation target definition

 

Assay Results

Sula is pleased to report that all assay results have now been received from the recently completed 3,800m drill programme. Highlights from these assays are:

·     confirmation of a new mineralised system at the newly identified TZ4 Southern Target, where FDD023 intersected two true thickness intervals of 0.8m grading 1.59g/t and 1.79g/t. These hits are 135m distant from the previously reported discovery hole FDD021 (5.2g/t over 1.22m) and so provide evidence of potential to establish lateral continuity of mineralisation;

·     a new zone of mineralisation beneath the Kuwait artisanal area from the underlying fresh material where FDD024 hit a true thickness interval of 0.8m at 2.13g/t between 63m and 64m down the hole; and

·     further evidence of gold mineralisation at Sanama Hill where FDD020 hit true thickness intervals of 1.3m at 0.97g/t and 1.8m at 1.48g/t. With this result, 10 of the 14 drill holes into Sanama Hill have returned mineralisation with an average of 2.05m at 3.9 g/t (average true thickness and length-weighted grade).

 

Roger Murphy, Sula's CEO, commented:

"This drill programme has continued to prove our confidence in Sanama Hill, demonstrating that there are thick high-grade pay-shoots to be found. Our success at the Southern Target has confirmed our belief in the regional potential of the Ferensola licence and the exciting results of the independent structural survey once again demonstrates the validity of our vision for Ferensola and confirms that there are many other areas that merit detailed investigation for gold mineralisation that we will be adding to future programmes.

I am pleased to be able to commence our Phase 3 drill programme so quickly and well before the start of the rainy season. I am confident that this drilling programme, taken together with the results from the previous two drill programmes, will continue to take this project towards the potential that we have always seen."

**ENDS**

For further information please contact:

 

For further information please contact:

 

 

Sula Iron & Gold plc


Roger Murphy (CEO)

+44 (0) 20 7583 8304



WH Ireland Limited (Nominated Adviser and Broker)

Paul Shackleton / James Bavister

+44 (0) 20 7220 1666

VSA Capital Limited (Broker)


Andrew Raca

+44 (0) 20 3005 5000

Ongeza Mining (Financial and Technical Adviser)


Iain Macpherson / Ilja Graulich

 

+27 (0) 11 469 0629

Exploration Summary

Figure 2 below shows the location of the Ferensola Licence and the drillhole collars set against the regional magnetic anomaly and interpreted regional shear zones and artisanal workings.

 

http://www.rns-pdf.londonstockexchange.com/rns/8759H_-2017-6-12.pdf

 

 

Figure 3 below shows the location of the TZ0 (Sanama Hill), TZ2 (Eastern Target) and TZ4 (Southern Target) with a view from the south of TZ4 looking north towards Sanama Hill.

 

http://www.rns-pdf.londonstockexchange.com/rns/8759H_-2017-6-12.pdf

 

 

The collar coordinates and collar dip and azimuth for the recently completed 3,783m drill programme are shown in Table 1 with the locations of the drillholes shown in Figure 4 where they are set against the magnetic anomaly and Induced Polarisation ("IP") chargeability data.

 

All samples are half diamond core and have been analysed by fire assay at ALS Laboratories in Ireland. As part of the sampling programme and along with the standard half core samples, Sula inserted certified reference samples and locally sourced blank samples. The samples submitted are summarised in Table 2.

 

Table 1:           DGPS Drillhole Collar Information

Assay Batch

Hole ID

Target

Easting

Northing

Elevation

Collar Dip

Collar Azimuth

Depth (m)

1

FDD011

TZ2

221918

1016499

568.4

55

130

305.5

1

FDD012

TZ2

222129

1016679

621.3

55

130

385.5

1

FDD013

TZ2

222012

1016603

602.0

55

131

309.5

1

FDD014

Sanama Hill

221396

1017822

605.5

60

115

196.8

1

FDD015

TZ2

222421

1017091

654.6

55

130

329.5

2

FDD016

TZ2

222485

1017034

675.7

55

130

155.3

2

FDD017

Sanama Hill

221594

1017683

603.5

55

120

352.6

2

FDD018

TZ2

222003

1016427

576.5

55

130

158.2

2

FDD019

TZ2

221873

1016533

562.1

55

130

158.5

2

FDD020

Sanama Hill

221368

1017657

560.1

55

110

298.9

2

FDD021

TZ4

221393

1015423

600.9

55

150

155.4

2

FDD022

Sanama Hill

221537

1017325

527.9

55

130

331.5

2

FDD023

TZ4

221261

1015399

606.8

55

130

332.4

2

FDD024

Kuwait (TZ2)

221381

1016524

528.8

55

130

313.7



TOTAL

3,783m

 

Table 2:           Summary of Sample Submission

Batch

Hole ID

Standard Half Core Samples

Blank Samples

Certified Reference Samples

2

FDD016

119

3

6

2

FDD017

110

3

5

2

FDD018

111

3

6

2

FDD019

123

3

6

2

FDD020

85

1

4

2

FDD021

81

3

4

2

FDD022

124

3

7

2

FDD023

124

3

7

2

FDD024

207

6

11

Total

1084

28

56

 

http://www.rns-pdf.londonstockexchange.com/rns/8759H_-2017-6-12.pdf

 

Figure 4: Location of drillholes comprising the Batch 2 samples (including FDD016 and FDD021 previously reported)

 

Table 3 shows the significant intersections returned from the Batch 2 assays with Figure 5, Figure 6 and Figure 7 showing the locations of the assay results at their respective locations of Sanama Hill, the TZ4 southern target and the Kuwait artisanal mining area.

 

The true thickness of each interval has been determined from the structural data recorded from the intersection which provides the dip and dip direction of the structure.

 

Table 3:           Significant intersections from Batch 2

Hole ID

From

To

Apparent Thickness (m)

True Thickness (m)

Au (g/t)

FDD016

-

-

-

-

-

FDD017

-

-

-

-

-

FDD018

-

-

-

-

-

FDD019

-

-

-

-

-

FDD020

72.4

74.0

1.6

1.3

0.97


80.8

83.0

2.2

1.8

1.48

FDD021

116.5

117.7

1.2

1.2

5.20

Including

116.45

117

0.55

0.55

3.7


117

117.67

0.67

0.67

6.4

FDD023

118.0

119.0

1.0

0.8

1.59


153.5

154.5

1.0

0.8

1.79

FDD024

63

64

1

0.8

2.13

 

Figure 5 shows the intersections from FDD020 with Table 4 summarising all Sanama Hill mineralised intervals returned to date. Based on an approximate cut-off grade of 0.5g/t Au, the mineralised true thickness equates to 2.05m with a length weighted average grade of 3.88g/t Au. Mineralisation is observed across multiple sub parallel strands. In total, 14 drillholes have been completed at Sanama Hill with significant mineralisation observed in 10 of the holes completed.

 

Mineralisation at Sanama Hill appears to be associated with a high resistivity anomaly which is believed to be related to the increased quartz content within the major intersections being particularly evident in FDD002, FDD004 and the recently completed FDD014 which reported a true thickness of 21m at 3.65g/t.

 

Sula completed two drillholes at the TZ4 Southern target with both FDD021 and FDD023 returning mineralised intervals. In addition to the drillholes completed by Sula, SDD013 completed by the previous licence holders returned an oxide sample of 1.72g/t over an apparent thickness of 6.45m. The true thickness of the historical intersection is unknown due to the oxide nature of the sample and the unknown dip of the mineralisation in this area. As shown in Figure 6, the TZ4 mineralised intersections correspond with an IP Chargeability high and lies near high-grade grab samples collected in the area surrounding TZ4 which is the site of intensive artisanal mining activities.

 

Figure 7 shows the location of FDD024 completed at the Kuwait artisanal mining area. The site was selected due to the location of intense artisanal mining and the location of a high resistivity zone similar to that observed at Sanama Hill. FDD024 returned a 2.13g/t sample between 63 and 64 m.

 

http://www.rns-pdf.londonstockexchange.com/rns/8759H_-2017-6-12.pdf

 

 

Figure 5: Location of the FDD020 intersections at Sanama Hill along with the locations of the FDD017 and FDD022 drill collars

 

 

Table 4:           Sanama Hill Intersection Summary

Hole ID

From

To

Apparent Thickness (m)

True Thickness (m)

Au (g/t)

FDD001

120

122.45

2.45

2.01

3.25

FDD001

139

140.7

1.7

1.39

1.03

FDD001

147.15

148.05

0.9

0.74

11.56

FDD001

160

161

1

0.82

10.58

FDD001

165

166

1

0.82

0.67

FDD002

19

24

5

3.83

1.72

FDD002

83.8

88

4.2

3.22

3.05

FDD003

51.3

54

2.7

1.91

2.29

FDD003

57.47

58.1

0.63

0.45

3.52

FDD003

75.9

76.4

0.5

0.35

1.03

FDD004

102.5

105.2

2.7

1.74

2.26

FDD004

109.2

114.25

5.05

3.25

4.93

FDD004

120.2

123.6

3.4

2.19

3.98

FDD005

60.4

61.4

1

0.71

0.85

FDD005

97.4

98.1

0.7

0.49

0.55

FDD005

120

120.5

0.5

0.35

12.05

FDD005

129

130

1

0.71

0.84

FDD005

131.8

132.5

0.7

0.49

3.88

FDD005

136

138

2

1.41

0.80

FDD005

155.3

156.3

1

0.71

3.54

FDD005

158.65

159.65

1

0.71

1.30

FDD008

21

23.4

2.4

1.97

5.66

FDD008

29.4

30.1

0.7

0.57

1.60

FDD008

55.3

56

0.7

0.57

1.24

FDD008

70

72

2

1.64

0.86

FDD009

96

97.5

1.5

1.23

0.64

FDD009

133.9

134.8

0.9

0.74

1.28

FDD010

27

28

1

0.82

1.13

SDD004

82.9

99.66

16.76

7.08

10.72

SDD016

169.8

174.1

4.3

1.82

5.25

SDD033

164.8

170.1

5.3

4.34

3.42

FDD014

2.93

4.53

1.6

1.03

0.53

FDD014

48.03

49.53

1.5

0.96

2.31

FDD014

122.85

155.45

32.6

20.95

3.65

FDD014

185

186.18

1.18

0.76

6.78

FDD020

72.35

73.98

1.63

1.34

0.97

FDD020

80.84

83

2.16

1.77

1.48

Average True Thickness and Length Weighted Grade

2.05

3.88

 

http://www.rns-pdf.londonstockexchange.com/rns/8759H_-2017-6-12.pdf

 

Figure 6: Location of the FDD021, FDD023 and historical SDD013 intersections at the TZ4 Southern Target set against the modelled IP data

 

http://www.rns-pdf.londonstockexchange.com/rns/8759H_-2017-6-12.pdf 

 

Figure 7: Location of the FDD024 intersection at the Kuwait artisanal mining area

 

Structural Review

Sula commissioned a review of all data collected to date by Tect Geological Consulting. Tect is a group of structural geologists who specialise on the link between structural geology and mineralisation. They have worked on gold mineralisation in Sierra Leone and several other West African countries for a number of companies.  Tect focussed on the regional geology, geophysical data and structural data collected during the two drill campaigns completed by Sula along with the assay results and core photographs.

 

Based on the work completed, and shown in Figure 8, Tect identified 19 targets that are deemed suitable structural traps for gold mineralisation as well as creating an interpretation of the regional shear zone network within the licence.

 

Of the 19 targets identified, Target 1 corresponds with Sanama Hill and Targets 5 and 16 correspond with the TZ4 Southern Target. Several of the other targets are also corroborated by artisanal activity or soil geochemistry.

 

The work completed by Tect will be used to guide future exploration campaigns.

 

http://www.rns-pdf.londonstockexchange.com/rns/8759H_-2017-6-12.pdf

 

 

Figure 8: Tect regional structural interpretation target definition

 

Notes:

Sula Iron & Gold plc is a gold focused exploration company focused on West Africa. The Company's main objective is to explore and advance its 153km2 Ferensola Project in Northern Sierra Leone. In December 2014, the Company achieved a corporate milestone in delivering its JORC MRE for the BIF 1 iron ore project. A total resource of 514.5Mt @ 31.8% Fe was identified and total oxide resource of 55.5Mt @ 45.39% Fe. In June 2015, the Company defined a JORC Exploration Target on its Ferensola Gold Project. The Exploration Target centres on Sanama Hill, with a tonnage range of between 5 and 7 million tonnes ("Mt"), grading at between 4 and 8 g/t Au, which equates to between 0.8 and 1.5 million ounces ("Moz") Au. The Exploration Target was restricted to a 2km strike length segment of the regional fold belt that is believed to extend for over 10km.

 

The potential quantity and grade is conceptual in nature and there has been insufficient exploration to estimate a JORC compliant Mineral Resource and it is uncertain if further exploration will result in the estimation of a JORC compliant Mineral Resource. In SRK's opinion, the historical exploration data reviewed and verified here, is sufficient in both quality and quantity for an Exploration Target as defined by the JORC Code to be defined. 

 

The information in this release that relates to Exploration Results has been reviewed by Mr Howard Baker, Non-Executive Technical Director of Sula Iron and Gold plc. Mr Baker is a Chartered Professional Fellow of the Australasian Institute of Mining and Metallurgy (Membership Number 224239) and a Competent Person as defined by the rules of International Reporting Codes that are aligned with CRIRSCO.

 

Howard Baker 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 targets, Exploration Results, Mineral Resources and Ore Reserves', also known as the JORC Code. The JORC code is a national reporting organisation that is aligned with CRIRSCO. Howard Baker consents to the inclusion in the announcement of the matters based on his information in the form and context in which they appear.

 

 

** Ends **

 


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