Wudinna Project Update

RNS Number : 1485W
Cobra Resources PLC
16 August 2022
 

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THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES OF ARTICLE 7 OF REGULATION 2014/596/EU WHICH IS PART OF DOMESTIC UK LAW PURSUANT TO THE MARKET ABUSE (AMENDMENT) (EU EXIT) REGULATIONS (SI 2019/310) ("UK MAR"). UPON THE PUBLICATION OF THIS ANNOUNCEMENT, THIS INSIDE INFORMATION (AS DEFINED IN UK MAR) IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN.

 

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY IN OR INTO THE UNITED STATES, AUSTRALIA, CANADA, JAPAN, THE REPUBLIC OF SOUTH AFRICA OR ANY OTHER JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION.

 

16 August 2022

 

Cobra Resources plc

 ("Cobra" or the "Company")

 

Wudinna Project Update

 

Aircore Drilling Yields Exceptional Gold and Rare Earth Results at Clarke

 

Cobra, a gold, IOCG, and rare earth exploration company focused on the Wudinna Project in South Australia, announces results from 29 holes that were drilled as part of an extensive 91-hole, 4,000m aircore drilling programme in June 2022 designed to inform and de-risk deeper Reverse Circulation ("RC") drilling later this year. The results received to date from 29 shallow holes drilled at the Clarke prospect are exceptional for both gold and rare earths and confirm:

 

· Further along-strike gold mineralisation , highlighted by CBAC0014 that intersected 12m at 1.25 g/t gold from only 18m and includes 6m at 2.29 g/t gold. This extends intersected gold mineralisation at Clarke beyond 500m

 

· Significant, target-generating gold in saprolite has been defined across broad zones north of previously intersected gold mineralisation. In comparison to drilled mineralisation zones, the anomalous zones northwest of Clarke are more significant, supporting further mineralisation down-dip and along strike

 

· Expanding high-grade clay hosted rare earths : Rare Earth Elements ("REE") have been intersected above and proximal to gold intersections, with 26 of the 29 holes yielding intersections with a length weighted average intersection of 13.3m at 934 ppm Total Rare Earth Oxide ("TREO"), and an average Magnet Rare Earth ("MREO")1 equating to 24% of the TREO

 

· The REE results infill and extend the defined 4 km2 mineralisation footprint of clay hosted REE mineralisation and demonstrate grade upside. REE mineralisation remains open in all directions

 

· Significant REE intersections include:

 

14m at 3,703 ppm TREO from 18m, including 6m at 6,648 ppm TREO from 22m  [CBAC0021]

 

10m at 2,220 ppm TREO from 42m, including 2m at 8,163 ppm TREO from 48m [CBAC0022]

 

34m at 854 ppm TREO from 16m, including 4m at 1,205 ppm TREO from 34m [CBAC0023]

 

26m at 928 ppm TREO from 14m, including 6m at 2,046 ppm TREO from 22m [CBAC0027]

 

· The results provide the Board with confidence of further exploration success within the planned RC drilling scheduled to commence once all results are received

 

Note 1 MREO = Nd2O3 + Pr6O11 + Dy2O3 + Tb2O3

 

Rupert Verco, CEO of Cobra, commented :

 

"These results confirm along-strike continuity of gold and rare earth mineralisation at the Clarke prospect. Some of the widths and grades intersected at such shallow depths are extremely exciting and should have positive implications on grades at depth when we return with the RC rig. Whilst we eagerly await further assays, the results from Clarke enable us to refine our geological models and improve the precision of our planned RC drilling campaign.

 

Over a six-month period, we have unveiled an exceptional value-add opportunity with rare earth mineralisation that is not only complementary to gold mineralisation, but regionally scalable. Whilst there remains further metallurgical test work to improve recoveries to be undertaken, the vertically associated nature of mineralisation at Clarke and Baggy Green supports favourable mining economics, whilst the growing regional occurrence across our 3,261 km2 land holding places Cobra in a position to define a potentially extensive clay-hosted rare earth resource enabling us to capitalise on the global demand for critical rare earth minerals and to contribute to decarbonisation .

 

We look forward to updating the market as further results are received and we complete our preparations for our highly anticipated RC programme."

 

Presentation

 

A presentation of results from the June 2022 aircore drilling programme of the Clarke prospect with management commentary is available on the Company's website at www.cobraplc.com .

 

Results highlights 

 

· CBAC0014 intersected 12m at 1.25 g/t gold from 18m, including 6m at 2.29 g/t from 22m. This is the shallowest defined gold mineralisation encountered at the project

 

· Highly anomalous gold in saprolite across broad zones recorded within 16 holes, supporting further gold mineralisation along strike and at depth that will be followed up with planned RC drilling. Notable anomalous zones include:

 

CBAC0020 intersected 16m at 0.22 g/t gold from 12m, including 2m at 0.9 g/t from 16m

CBAC0013 intersected 12m at 0.29 g/t gold from 18m

CBAC0007 intersected 18m at 0.14 g/t gold from 14m

CBAC0027 intersected 6m at 0.31 g/t gold from 16m

CBAC0016 intersected 10m at 0.16 g/t gold from 10m

CBAC0009 intersected 12m at 0.10 g/t gold from 20m

CBAC0017 intersected 8m at 0.12 g/t gold from 50m

· Gold mineralisation at Clarke has now been intersected over 500m of strike at Clarke, with mineralisation remaining open to the northwest

 

· 89% of holes yield significant REE mineralisation greater than 500 ppm TREO, where:

 

The highest 2m intersection grade is 8,682 ppm TREO, where the neodymium + praseodymium + dysprosium + terbium oxide grade is 2,015 ppm [CBAC0021]

 

The average true width of reported intersections is 13.3m and the weighted average TREO is 934 ppm

 

The length weighted average TREO minus Cerium ("TREO-Ce") is 609 ppm, demonstrating a favourable basket assemblage of high-value rare earths

 

Intersections are enriched in high-value rare earths used in permanent magnets "MREO", where neodymium + praseodymium + dysprosium + terbium equate to 24% of the TREO

 

The length weighted average of scandium oxide (Sc2O3) is 30 ppm which is comparable to other REE associated resources. Scandium is an element utilised in aviation, is in growing demand and is often associated with clay hosted REE deposits

 

· REE mineralisation remains open to the north, east and west of the defined REE mineralisation footprint

 

· Results provide favourable drill density to contribute to a planned maiden REE resource estimate

 

· Highlight intersections above and proximal to gold mineralisation at Clarke include:

 

CBAC0021 intersects 14m at 3,703 ppm TREO from 18m, including 6m at 6,648 ppm TREO from 22m

 

CBAC0022 intersects 10m at 2,220 ppm TREO from 42m, including 2m at 8,163 ppm TREO from 48m

 

CBAC0023 intersects 34m at 854 ppm TREO from 16m, including 4m at 1,205 ppm TREO from 34m

 

CBAC0027 intersects 26m at 928 ppm TREO from 14m, including 6m at 2,046 ppm TREO from 22m

 

CBAC0019 intersects 26m at 793 ppm TREO from 26m

 

CBAC0026 intersects 22m at 704 ppm TREO from 16m

 

CBAC0012 intersects 12m at 1,212 ppm TREO from 18m

 

CBAC0008 intersects 2m at 789 ppm TREO and 17m at 1,515 ppm TREO from 56m

 

CBAC0007 intersects 22m at 672 ppm TREO from 22m

 

CBAC0016 intersects 10m at 965 ppm TREO from 14m

 

· Multi-element pathfinder chemistry remains outstanding for all drillholes. Gold and REE assays are outstanding for the remaining 62 drillholes and are expected to be received over the coming weeks

 

Further information pertaining to reported results

 

The Clarke gold and REE prospect is located 1.75 km north of the 94,000 oz Baggy Green gold deposit that forms part of the Wudinna Project's 211,000 oz gold Mineral Resource Estimate ("MRE"). In Cobra's maiden 2020 drilling programme, drilling intersected 31m at 3.06 g/t to the north of previously intercepted gold mineralisation at the Clarke prospect.

 

RC drilling in November 2021 defined broad intersections of clay hosted mineralisation above and proximal to intersected gold mineralisation. A comprehensive re-analysis programme has defined extensive REE mineralisation over a 4 km2 footprint:

 

· Elevated REE mineralisation occurs within the weathered saprolite zone, above and proximal to gold mineralisation across the Clarke and Baggy Green prospects

 

· XRD analysis performed by the CSIRO supports that a component of REE bursary is adsorbed to the primary clay particles being kaolin and montmorillonite in similar fashion to the highly desirable Ion Adsorbed Clay ("IAC") hosted deposits of southern China

 

· Preliminary metallurgical test work focusing on extraction techniques adopted to ionic phase mineralisation using H2SO4 as a lixiviant and performed by ANSTO yielded recoveries of up to 34% TREE ("Total Rare Earth Element") from samples across two holes at Clarke

 

· Further re-analysis of historic drilling demonstrates considerable regional scalability

 

Results from this programme at Clarke were intended to:

 

1.  De-risk follow-up RC drilling that will enable intersected gold mineralisation at Clarke to be incorporated into an updated MRE

2.  Validate REE intersections defined from the re-analysis of pulps retained from historic drill programmes

3.  Infill and extend REE mineralisation for the incorporation into a maiden REE mineral resource estimate

 

Significant and anomalous gold intersections from the aircore programme and significant REE oxide intersections are defined in tables 1 and 2 below.

 

· The intersected strike of gold mineralisation at Clarke now exceeds 500m

 

· Results support the current lode interpretation striking WNW and dipping moderately to the NE

 

· Mineralisation remains open to the northwest of drillhole CBAC0014 that intersected 12m at 1.25 g/t gold

 

· Follow-up RC drilling will test down-dip continuities of highly anomalous gold in saprolite

 

· REE mineralisation remains open in all directions, whilst intersection widths and higher REE grades will contribute favourably to a maiden REE estimate at Clarke

 

The location of reported gold and REE intersections is demonstrated in Figure 1 below:

Figure 1: Significant intersections and collar locations from the reported 29 holes at Clarke

 

Table 1 : Significant and anomalous gold intersections from the June 2022 aircore drilling programme, reported as downhole intersections

 

BHID

DH From (m)

DH To

(m)

Interval (m)

Au g/t

Including

 




CBAC0014

18

30

12

1.25

6m at 2.29 g/t Au [22 - 28m]



CBAC0020

12

38

26

0.22

2m at 0.9 g/t Au [16 - 18m]



CBAC0005

10

12

2

0.12




CBAC0007

14

32

18

0.11




CBAC0008

26

28

2

0.11




CBAC0008

38

40

2

0.12




CBAC0009

20

32

12

0.10




CBAC0010

22

24

2

0.19




CBAC0027

16

22

6

0.31




CBAC0011

38

40

2

0.11




CBAC0013

18

30

12

0.29




CBAC0016

14

24

10

0.16




CBAC0017

50

58

8

0.12




 

 

 

 

 

 

Table 2 : Significant rare earth oxide intersections, reported as downhole and true width







 


BHID

DH From (m)

DH To (m)

Interval (m)

Au g/t

Including

 




CBAC0005

10

12

2

0.11




CBAC0007

14

32

18

0.12




CBAC0008

26

28

2

0.10




CBAC0008

38

40

2

0.19




CBAC0009

20

32

12

0.12




CBAC0010

22

24

2





CBAC0008

38

40

2

0.16




CBAC0009

18

30

12

0.12




CBAC0014

18

30

12

0.12

6m at 2.29 g/t Au [22 - 28m]



 

BHID

DH From (m)

DH To (m)

DH Int (m)

TREO + Y (ppm)

Neodymium

Praseodymium

Terbium

Dysprosium

MREO %

Scandium

Nd2O3

Pr6O11

Tb4O7

Dy2O3

Sc2O3

ppm

% TREO

ppm

% TREO

ppm

% TREO

ppm

% TREO

ppm

CBAC0005

16

20

4

976

161

16.5%

42

4.3%

3.7

0.4%

21

2.2%

23%

20

CBAC0006

36

40

4

772

119

15.4%

33

4.3%

2.6

0.3%

16

2.1%

22%

38

CBAC0007

38

60

22

672

122

18.2%

34

5.1%

2.4

0.4%

14

2.1%

26%

25

inc

38

40

2

1,296

253

19.6%

77

5.9%

4.6

0.4%

25

1.9%

28%

39

CBAC0008

38

40

2

789

142

18.0%

41

5.2%

2.6

0.3%

14

1.8%

25%

103

and

56

73

17

1,515

232

15.3%

59

3.9%

7.7

0.5%

47

3.1%

23%

23

inc

64

73

9

2,296

339

14.8%

86

3.7%

12.5

0.5%

78

3.4%

22%

29

CBAC0009

40

50

10

897

162

18.1%

45

5.1%

3.0

0.3%

17

1.9%

25%

22

CBAC0010

28

42

14

707

107

15.2%

29

4.2%

1.7

0.2%

10

1.4%

21%

12

CBAC0011

34

40

6

562

101

17.9%

27

4.9%

1.6

0.3%

9

1.6%

25%

32

CBAC0012

28

40

12

1,212

210

17.3%

59

4.9%

4.2

0.3%

25

2.1%

25%

30

CBAC0013

28

34

6

548

115

20.9%

32

5.8%

1.7

0.3%

9

1.7%

29%

18

CBAC0014

40

60

20

567

86

15.1%

23

4.0%

2.2

0.4%

14

2.4%

22%

26

CBAC0015

14

22

8

552

93

16.9%

26

4.8%

2.2

0.4%

13

2.3%

24%

20

CBAC0016

14

24

10

965

167

17.3%

46

4.7%

3.7

0.4%

21

2.2%

25%

25

CBAC0017

42

46

4

515

80

15.5%

22

4.2%

1.4

0.3%

8

1.5%

21%

20

CBAC0018

26

42

16

537

94

17.5%

25

4.7%

1.7

0.3%

10

1.8%

24%

22

CBAC0019

24

50

26

793

133

16.8%

36

4.5%

2.8

0.3%

16

2.0%

24%

35

CBAC0020

42

46

4

837

98

11.7%

25

3.0%

5.4

0.6%

38

4.5%

20%

18

CBAC0021

18

32

14

3,703

662

17.9%

162

4.4%

14.2

0.4%

81

2.2%

25%

32

inc

22

28

6

6,648

1203

18.1%

295

4.4%

25.6

0.4%

146

2.2%

25%

36

CBAC0022

42

52

10

2,220

436

19.6%

106

4.8%

10.2

0.5%

60

2.7%

28%

53

inc

48

50

2

8,163

1573

19.3%

372

4.6%

38.9

0.5%

231

2.8%

27%

87

CBAC0023

16

50

34

854

149

17.5%

40

4.7%

3.3

0.4%

19

2.2%

25%

30

inc

34

38

4

1,205

273

22.6%

67

5.6%

6.0

0.5%

33

2.7%

31%

46

CBAC0024

34

46

12

510

78

15.2%

21

4.2%

1.8

0.4%

11

2.1%

22%

51

CBAC0025

28

36

8

745

137

18.3%

37

5.0%

2.6

0.4%

15

2.0%

26%

25

CBAC0026

16

38

22

704

118

16.7%

32

4.6%

1.8

0.3%

10

1.4%

23%

35

CBAC0027

14

40

26

928

163

17.6%

44

4.7%

3.6

0.4%

20

2.2%

25%

42

inc

22

28

6

2,046

354

17.3%

93

4.5%

7.6

0.4%

43

2.1%

24%

52

CBAC0028

20

44

24

525

99

18.9%

27

5.2%

2.1

0.4%

12

2.3%

27%

27

CBAC0029

26

36

10

574

88

15.4%

25

4.3%

2.0

0.4%

12

2.1%

22%

34

 


 

 

Further Information regarding the aircore drilling programme

 

Aircore drilling is a low-cost, low -disturbance drilling process that enables samples to be collected through the weathered horizon and into the top of hard rock basement. The process has been employed to identify pathfinder minerals associated with gold mineralisation whose properties provide greater resistance to secondary weathering processes - and are retained within the saprolite horizon - than gold, which is readily mobilised. The nature of the saprolite hosted REE mineralisation enables means aircore drilling is the primary process to test clay hosted REE mineralisation.

 

The programme has been designed to de-risk higher cost RC drilling, whilst enabling the evaluation of REEs enriched within the kaolinised clays of the saprolite horizon. The derived multi-chemistry dataset is designed to value-add through:

 

·     Intersecting shallow gold mineralisation proximal to known gold prospects

·     Defining REE mineralisation within the weathered saprolite horizon

·     Providing basement rock pathfinder chemistry to advance targeting at regional gold and IOCG targets

 

Results presented within this announcement relate to 29 holes drilled at the Clarke prospect. Assays from a further 62 holes are expected in the coming weeks. Outstanding assays relate to:

 

 

·   Thompson: 9 holes testing the along strike continuity of REE mineralisation in follow-up to historic drillhole re-analysis which included SCH-0922 that intersected 31m at 1,427 ppm TREO, including 12m at 3,168 ppm TREO

 

·   IOCG geophysical anomalies: 11 drillholes yielding maiden samples from hard rock at IOCG targets 1-3

 

·   Barns and White Tank: 11 drillholes testing gold resource extensions, and variances in saprolite geochemistry

 

·   Anderson: 6 holes testing REE prospectivity across a regionally significant structure and following up reported REE mineralisation where WUD1-0231 intersected 18m at 2,024 ppm TREO from 24m, including 12m at 2,767 ppm TREO from 30m, above the previously reported 1m at 1.013 g/t gold from 79m

 

·   Regional targets: a further 16 holes across 5 regional targets, following up anomalous gold in calcrete and perspective clay hosted REE potential

 

Further re-analysis of historic drilling

 

The Company's growing dataset of REE results has highlighted the significance of REE mineralisation at several regional targets tested in Stage 4 re-analysis, reported on 20 June 2022. Both the Thompson and Anderson prospects yield high basket assemblages of heavy rare earths and high-value magnet rare earths (Figure 2), whilst the presence of montmorillonite and illite clays and varied chemical assemblages support the potential for a greater bursary of Ion Adsorption mineralisation.

 

As a result, an additional 750 samples from 70 holes at Thompson and 6 holes from Anderson have been submitted for REE analysis. The results of are anticipated in late September 2022. Drillholes from Thompson have been selected at a 200m by 1,000m spacing over an area representing ~25 km2. This re-analysis shall enable the Thompson prospect to be considered in a maiden REE resource estimate.

 

Figure 2: Graphed Assemblage of REEs from significant intersections reported from pulp re-analyses, demonstrating the increased composition of high-value REEs at Thompson and Anderson prospects.

 

Chart, waterfall chart Description automatically generated

 

 

The location of reported drillholes and outstanding aircore drillholes, and holes for further re-analysis are detailed in Figure 3 below.

 

 

 

 

Figure 3 : Drillhole collar locations 91 aircore and the planned additional re-analyses of 76 holes from Thompson and Anderson.  

 



Map Description automatically generated
 

 

 


Enquiries:

 

Cobra Resources plc

Rupert Verco (Australia)

Dan Maling (UK)

 

via Vigo Consulting

+44 (0)20 7390 0234

SI Capital Limited (Joint Broker)

Nick Emerson

Sam Lomanto

 

+44 (0)1483 413 500

Peterhouse Capital Limited (Joint Broker)

Duncan Vasey

Lucy Williams

 

+44 (0)20 7469 0932

Vigo Consulting (Financial Public Relations)

Ben Simons

Charlie Neish

Kendall Hill

+44 (0)20 7390 0234

 

The person who arranged for the release of this announcement was Rupert Verco, CEO of the Company.

 

About Cobra

Cobra's Wudinna Project is located in the Gawler Craton which is home to some of the largest IOCG discoveries in Australia including Olympic Dam, as well as Prominent Hill and Carrapateena. Cobra's Wudinna tenements contain extensive orogenic gold mineralisation and are characterised by potentially open-pitable, high-grade gold intersections, with ready access to nearby infrastructure. Recent drilling has discovered Rare Earth Mineralisation proximal to and above gold mineralisation. The grades, style of mineralogy and intercept widths are highly desirable. In addition, Cobra has over 22 orogenic gold prospects, with grades of 16 g/t up to 37.4 g/t gold outside of the current 211,000 oz JORC Mineral Resource Estimate, as well as one copper-gold prospect, and five IOCG targets.

 

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Wudinna Project Description

The Eyre Peninsula Gold Joint Venture comprises a 1,832 km2 land holding, that forms part of the Company's 3,262 km2 landholding in the Gawler Craton. The Wudinna Gold Project within the Joint Venture tenement holding comprises a cluster of gold prospects which includes the Barns, White Tank and Baggy Green deposits.

 

Competent Persons Statement

Information and data presented within this announcement has been compiled by Mr Robert Blythman, a Member of the Australian Institute of Geoscientists ("MAIG"). Mr Blythman is a Consultant to Cobra Resources Plc and has sufficient experience, which is relevant to the style of mineralisation, deposit type and to the activity which he is undertaking to qualify as a Competent Person defined by the 2012 Edition of the Australasian Code for Reporting Exploration Results, Mineral Resources and Ore Reserves (the "JORC" Code). This includes 10 years of Mining, Resource Estimation and Exploration relevant to the style of mineralisation.

 

Information in this announcement has been assessed by Mr Rupert Verco, a Fellow of the Australasian Institute of Mining and Metallurgy ("FAusIMM"). Mr Verco an employee of Cobra Resources Plc has more than 16 years relevant industry experience, which is relevant to the style of mineralisation, deposit type and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting Exploration Results, Mineral Resources and Ore Reserves (the "JORC" Code). This includes 10 years of Mining, Resource Estimation and Exploration relevant to the style of mineralisation.

 

Information in this announcement relates to exploration results that have been reported in the following announcements:

 

"Wudinna Project Update - Initial Gold and Rare Earth Results", dated 14 December 2021

"Wudinna Project Update - Re-Analysis Defines Large Rare Earth Mineralisation Footprint Above Baggy Green and Clarke Gold Mineralisation", dated 4 May 2022

"Wudinna Project Update - Northern Drillholes at Clarke Intersect Additional Gold Mineralisation, Additional Rare Earth Intersections Directly Above Gold Zones", dated 7 February 2022

"Wudinna Project Update - Stage 4 Re-Analysis Demonstrates Large Scalability of Rare Earth Mineralisation, Preliminary Metallurgical Testing Provides Encouraging Recovery Potential", dated 20 June 2022

 

 

 

JORC Code, 2012 Edition - Table 1 report template

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 (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

·   Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

·   Aspects of the determination of mineralisation that are Material to the Public Report.

·   In cases where 'industry standard' work has been done this would be relatively simple (eg 'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g 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 (eg submarine nodules) may warrant disclosure of detailed information.

·     Sampling during Cobra Resources 2022 AC drilling program at the Clarke Prospect was obtained through air core (AC) drilling methods.

·     Historic RC and RAB drilling methods have been employed at Clarke and Baggy Green prospects since 2000. Rotary air-core and Reverse Circulation (RC) drilling occurred in 2021 and were used to aid in the programme design but have not been used for grade estimations or defining results that are reported in this announcement.

·     Two meter samples were collected in 20l buckets via a rig mounted cyclone. An aluminum scoop was used to collect a 2-4kg sub sample from meach bucket. Samples were taken from the point of collar, but only samples from the commencement of saprolite were selected for analysis.

·     Samples submitted to the Genalysis Intertek Laboratories, Adelaide and pulverized to produce the 25g fire assay charge and 4 acid digest sample.

·     A summary of previous drilling at the Clarke Prospect is outlined in the Cobra Resources RNS number 7923A from 7th February 2022

 

Drilling techniques

·   Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).

·     Drilling completed by McLeod Drilling Pty Ltd using 75.7mm NQ air core drilling techniques from an ALMET Aircore rig mounted on a Toyota Landcruiser 6x6 and a 200psi, 400cfm Sullair compressor.

 

Drill sample recovery

·   Method of recording and assessing core and chip sample recoveries and results assessed.

·   Measures taken to maximise sample recovery and ensure representative nature of the samples.

·   Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.

·     Sample recovery was generally good with water being intersected in less than 10% of the drilled holes. All samples were recorded for sample type, quality and contamination potential and entered within a sample log.

·     In general, sample recoveries were good with 20-25kg for each two meter interval being recovered.

·     No relationships between sample recovery and grade have been identified. 

Logging

·   Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

·   Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography.

·   The total length and percentage of the relevant intersections logged.

·     All drill samples were logged by an experienced geologist at the time of drilling. Lithology, colour, weathering and moisture were documented.

·     All drilled metres were logged.

·     Logging is generally qualitative in nature.

·     All AC drill metres has been geologically logged on two metre intervals (1,269m in total).

Sub-sampling techniques and sample preparation

·   If core, whether cut or sawn and whether quarter, half or all core taken.

·   If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.

·   For all sample types, the nature, quality and appropriateness of the sample preparation technique.

·   Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.

·   Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling.

·   Whether sample sizes are appropriate to the grain size of the material being sampled.

·     The use of an aluminum scoop to collect the required 2-4kg of sub-sample from each 2m sample length controlled the sample volume submitted to the lab.

·     Additional sub-sampling was performed through the preparation and processing of samples according to the laboratories internal protocols.

·     Duplicate samples were collected from the sample buckets using an aluminium scoop at a 1 in 50 sample frequency.

·     Sample sizes were appropriate for the material being sampled.

·     Assessment of duplicate results indicated this sub - sample method provided good repeatability for rare earths and lower repeatability for gold.

 

Quality of assay data and laboratory tests

·   The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

·   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 (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.

·     Samples were submitted to Genalysis Intertek Laboratories, Adelaide for preparation and analysis.

·     Gold quantity was analysed using 25g fire assay techniques (FA25/OE04) that utilizes a 25 g lead collection fire assay with ICP-OES finish to deliver reportable precision to 0.005 ppm.

·     Multi element geochemistry were digested by four acid ICP-MS and analysed for Ag, Ce, Cu, Dy, Er, Eu, Gd, Ho, La, Lu, Na, Nd, Pr, Sc, Sm, Tb, Th, Tm, U, Y and Yb.

·     Field blanks and standards were submitted at a frequency of 1 in 50 samples.

·     Field duplicate samples were submitted at a frequency of 1 in 50 samples

·     Reported assays are to acceptable levels of accuracy and precision.

Verification of sampling and assaying

·   The verification of significant intersections by either independent or alternative company personnel.

·   The use of twinned holes.

·   Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

·   Discuss any adjustment to assay data.

·     Sampling data was recorded in field books, checked upon digitizing and transferred to database.

·     Geological logging was undertaken digitally via the MX Deposit logging interface and synchronized to the database at least daily during the drill program

·     Compositing of assays was undertaken and reviewed by Cobra Staff.

·     Original copies of lab assay data are retained digitally on the Cobra server for future reference.

·     Physical copies of field sampling books are retained by Cobra for future reference.

·     Significant intercepts have been prepared by Mr Rupert Verco and reviewed by Mr Robert Blythman

 

Location of data points

·   Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.

·   Specification of the grid system used.

·   Quality and adequacy of topographic control.

·     Collar locations were surveyed using Google Pixel 6 mobile phone utilizing the Avenza Map app. Collar points recorded with a horizontal accuracy within 5m.

·     Locations are recorded in geodetic datum GDA 94 zone 53.

·     no downhole surveying was undertaken. All holes were set up vertically and are assumed vertical.

·     Collar elevations have been projected to the Australian Height Datum surface.

·     The survey methods applied are considered adequate as an indicator of mineralization. More accurate survey methods would be required for use in a gold Mineral Resource estimation, in particular elevation.

Data spacing and distribution

·   Data spacing for reporting of Exploration Results.

·   Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.

·   Whether sample compositing has been applied.

·     Drillhole spacing was designed on transects 50 to 80m apart. Drillholes generally 50 - 60m apart on these transects but up to 70m apart.

·     Additional scouting holes were drilled opportunistically on existing tracks at spacings 25-150m from previous drillholes.

·     All holes were vertical .

·     Data spacing is considered adequate for a saprolite hosted rare earth Mineral Resource estimation. Further drilling at a closer spacing would be required for use in a gold Mineral Resource estimation.

·     No sample compositing has been applied

Orientation of data in relation to geological structure

·   Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type.

·   If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.

·   The program was designed to increase confidence of the NW striking interpretation of gold mineralization and test the extents of saprolite hosted rare earth mineralization. Vertical drillholes provide are not considered to present any down dip bias for gold based on the indicative nature of the drilling results.

·   Vertical drillholes allow for an unbiased testing of the horizontal saprolite hosted rare earth mineralization.

·   Drilling results are not presented as true width but are not considered to present any down-dip bias.

Sample security

·   The measures taken to ensure sample security.

·   Transport of samples to Adelaide was undertaken by a competent independent contractor. Samples were packaged in zip tied polyweave bags in bundles of 5 samples at the drill rig and transported in larger bulka bags by batch while being transported.

Audits or reviews

·   The results of any audits or reviews of sampling techniques and data.

·   No laboratory audit or review has been undertaken.

·   Genalysis Intertek Laboratories Adelaide are a NATA (National Association of Testing Authorities) accredited laboratory, recognition of their analytical competence.

 

 

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 land tenure status

·   Type, reference name/number, location and ownership including agreements or material issues with third 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 licence to operate in the area.

·     This drilling program has been carried out on EL 6131, currently owned 100% by Peninsula Resources limited, a wholly owned subsidiary of Andromeda Metals Limited.

·     Alcrest Royalties Australia Pty Ltd retains a 1.5% NSR royalty over future mineral production from both licences.

·     Baggy Green, Clarke, Laker & the IOCG targets are located within Pinkawillinnie Conservation Park. Native Title Agreement has been negotiated with the NT Claimant and has been registered with the SA Government.

·     Aboriginal heritage surveys have been completed over the Baggy Green project area, with no sites located in the immediate vicinity.

·     A Native Title Agreement is in place with the relevant Native Title party.

Exploration done by other parties

·   Acknowledgment and appraisal of exploration by other parties.

•     On-ground exploration completed prior to Andromeda Metals' work was limited to 400 m spaced soil geochemistry completed by Newcrest Mining Limited over the Barns prospect.

·     Other than the flying of regional airborne geophysics and coarse spaced ground gravity, there has been no recorded exploration in the vicinity of the Baggy Green deposit prior to Andromeda Metals' work.

Geology

·   Deposit type, geological setting and style of mineralisation.

·     The deposits are either lode gold or intrusion type mineralization related to the 1590 Ma Hiltaba/ GRV tectonothermal event.

·     Gold mineralization has a spatial association with mafic intrusions/ granodiorite alteration and is associated with metasomatic alteration of host rocks.

·     Rare earth minerals occur within the kaolinized saprolite horizon. Preliminary work supports IAC (Ion Adsorbed Clay) mineralisation. Further work is planned to define mineralogy and nature of mineral occurrence.

 

·   A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:

easting and northing of the drill hole collar

elevation or RL (Reduced Level - elevation above sea level in metres) of the drill hole collar

dip and azimuth of the hole

down hole length and interception depth

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.

·     The report includes a tabulation of drillhole collar information and associated interval grades to allow an understanding of the results reported herein. 

·     Sections have not been provided as the nature vertical drilling does not enable accurate interpretation of mineralized gold lodes.

·     Sections will be produced upon the completion of planned RC drilling.

Data aggregation methods

·   In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated.

·   Where aggregate intercepts incorporate short lengths 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.

·     Reported summary intercepts are weighted averages based on length.

·     No maximum/ minimum grade cuts have been applied.

·     No metal equivalent values have been calculated.

·     Rare earth element analyses were originally reported in elemental form and have been converted to relevant oxide concentrations in line with industry standards. Conversion factors tabulated below:

Element

Oxide

Factor

Cerium

CeO2

1.2284

Dysprosium

Dy2O3

1.1477

Erbium

Er2O3

1.1435

Europium

Eu2O3

1.1579

Gadolinium

Gd2O3

1.1526

Holmium

Ho2O3

1.1455

Lanthanum

La2O3

1.1728

Lutetium

Lu2O3

1.1371

Neodymium

Nd2O3

1.1664

Praseodymium

Pr2O3

1.1703

Scandium

Sc2O3

1.5338

Samarium

Sm2O3

1.1596

Terbium

Tb2O3

1.151

Thulium

Tm2O3

1.1421

Yttrium

Y2O3

1.2699

Ytterbium

Yb2O3

1.1387

·     The reporting of REE oxides is done so in accordance with industry standards with the following calculations applied:

TREO = La2O3 + CeO2 + Pr6O11 + Nd2O3 + Sm2O3 + Eu2O3 + Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + Y2O3

CREO = Nd2O3 + Eu2O3 + Tb4O7 + Dy2O3 + Y2O3

LREO = La2O3 + CeO2 + Pr6O11 + Nd2O3

HREO = Sm2O3 + Eu2O3 + Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + Y2O3

NdPr = Nd2O3 + Pr6O11

TREO-Ce = TREO - CeO2

% Nd = Nd2O3/ TREO

%Pr = Pr6O11/TREO

%Dy = Dy2O3/TREO

%HREO = HREO/TREO

%LREO = LREO/TREO

Relationship between mineralisation widths and intercept lengths

·   These relationships are particularly important in the reporting of Exploration Results.

·   If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.

·   If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg 'down hole length, true width not known').

·     This drilling programme is designed to confirm the orientation and continuity of mineralisation. Preliminary results support unbiased testing of mineralized structures.

·     Previous holes drilled have been drilled in several orientations due to the unknown nature of mineralisation.

·     The work completed to date is not considered robust to adequately define mineralisation geometry.

Diagrams

·   Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

·     Plan maps are referenced that demonstrate results of interest.

Balanced 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.

·     Referenced Plans detail the extent of drilling and the locations of both high and low grades. Comprehensive results are reported.

 

Other substantive exploration data

·   Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; 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.

·     Significant gold intersects of previous drilling is not tabulated or referenced on plans 

·     Refer to previous announcements listed in rns for previous REE results and metallurgical testing and detailed gold intersections.

Further work

·   The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).

·   Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

·     Further slimline RC drilling is planned to test for both lateral and depth extensions. The complete results from this programme will form the foundation for a maiden resource estimation at Clarke. 

 

 

Appendices

 

Appendices 1 : Collar locations of reported and outstanding drill results

 

Hole ID

Hole type

Easting

Northing

Depth (m)

Dip

Assays Received/ Reported

Au

REE

Multi-Element

CBAC001

AC

546,763

6,364,519

17

-90

Y

Y

N

CBAC002

AC

546,729

6,364,615

13

-90

Y

Y

N

CBAC003

AC

546,848

6,364,656

15

-90

Y

Y

N

CBAC004

AC

546,948

6,364,681

21

-90

Y

Y

N

CBAC005

AC

546,824

6,364,730

22

-90

Y

Y

N

CBAC006

AC

547,033

6,365,380

40

-90

Y

Y

N

CBAC007

AC

546,887

6,365,294

69

-90

Y

Y

N

CBAC008

AC

546,833

6,365,265

73

-90

Y

Y

N

CBAC009

AC

546,787

6,365,239

52

-90

Y

Y

N

CBAC010

AC

546,744

6,365,213

42

-90

Y

Y

N

CBAC011

AC

546,779

6,365,151

40

-90

Y

Y

N

CBAC012

AC

546,945

6,365,239

40

-90

Y

Y

N

CBAC013

AC

546,885

6,365,206

59

-90

Y

Y

N

CBAC014

AC

546,832

6,365,179

61

-90

Y

Y

N

CBAC015

AC

546,955

6,365,177

34

-90

Y

Y

N

CBAC016

AC

546,904

6,365,149

58

-90

Y

Y

N

CBAC017

AC

546,860

6,365,129

60

-90

Y

Y

N

CBAC018

AC

546,814

6,365,105

48

-90

Y

Y

N

CBAC019

AC

546,798

6,365,066

54

-90

Y

Y

N

CBAC020

AC

546,936

6,365,061

54

-90

Y

Y

N

CBAC021

AC

546,885

6,365,085

55

-90

Y

Y

N

CBAC022

AC

546,825

6,365,022

54

-90

Y

Y

N

CBAC023

AC

546,860

6,364,978

54

-90

Y

Y

N

CBAC024

AC

547,114

6,364,887

48

-90

Y

Y

N

CBAC025

AC

547,182

6,364,880

48

-90

Y

Y

N

CBAC026

AC

547,206

6,364,822

42

-90

Y

Y

N

CBAC027

AC

547,152

6,364,826

48

-90

Y

Y

N

CBAC028

AC

547,101

6,364,840

51

-90

Y

Y

N

CBAC029

AC

547,050

6,364,830

40

-90

Y

Y

N

CBAC030

AC

547,062

6,364,887

50

-90

N

N

N

CBAC031

AC

547,013

6,364,864

48

-90

N

N

N

CBAC032

AC

547,298

6,364,763

30

-90

N

N

N

CBAC033

AC

547,202

6,364,772

39

-90

N

N

N

CBAC034

AC

547,100

6,364,779

48

-90

N

N

N

CBAC035

AC

545,075

6,365,851

28

-90

N

N

N

CBAC036

AC

545,063

6,365,252

36

-90

N

N

N

CBAC037

AC

545,038

6,364,195

34

-90

N

N

N

CBAC038

AC

574,706

6,358,835

16

-90

N

N

N

CBAC039

AC

573,256

6,358,867

25

-90

N

N

N

CBAC040

AC

571,639

6,359,007

60

-90

N

N

N

CBAC041

AC

570,239

6,359,082

52

-90

N

N

N

CBAC042

AC

568,574

6,359,446

34

-90

N

N

N

CBAC043

AC

568,794

6,359,447

41

-90

N

N

N

CBAC044

AC

569,050

6,359,447

40

-90

N

N

N

CBAC045

AC

568,367

6,358,977

55

-90

N

N

N

CBAC046

AC

568,328

6,362,265

52

-90

N

N

N

CBAC047

AC

568,826

6,362,054

18

-90

N

N

N

CBAC048

AC

567,034

6,355,421

29

-90

N

N

N

CBAC049

AC

566,908

6,355,739

44

-90

N

N

N

CBAC050

AC

566,542

6,356,670

72

-90

N

N

N

CBAC051

AC

566,010

6,357,916

27

-90

N

N

N

CBAC052

AC

568,621

6,362,052

39

-90

N

N

N

CBAC053

AC

556,208

6,361,649

45

-90

N

N

N

CBAC054

AC

556,171

6,362,895

44

-90

N

N

N

CBAC055

AC

556,131

6,363,573

54

-90

N

N

N

CBAC056

AC

556,152

6,364,782

50

-90

N

N

N

CBAC057

AC

556,142

6,365,279

47

-90

N

N

N

CBAC058

AC

543,292

6,366,697

53

-90

N

N

N

CBAC059

AC

538,454

6,364,865

42

-90

N

N

N

CBAC060

AC

539,850

6,364,300

26

-90

N

N

N

CBAC061

AC

540,349

6,367,726

32

-90

N

N

N

CBAC062

AC

541,086

6,367,426

30

-90

N

N

N

CBAC063

AC

541,980

6,366,878

28

-90

N

N

N

CBAC064

AC

542,632

6,366,572

32

-90

N

N

N

CBAC065

AC

542,963

6,366,472

59

-90

N

N

N

CBAC066

AC

543,238

6,366,355

26

-90

N

N

N

CBAC068

AC

541,143

6,364,814

39

-90

N

N

N

CBAC069

AC

542,085

6,364,556

45

-90

N

N

N

CBAC070

AC

542,287

6,365,560

30

-90

N

N

N

CBAC071

AC

541,059

6,365,951

26

-90

N

N

N

CBAC072

AC

540,703

6,366,144

24

-90

N

N

N

CBAC073

AC

554,802

6,358,484

30

-90

N

N

N

CBAC074

AC

555,219

6,355,578

23

-90

N

N

N

CBAC075

AC

555,045

6,355,594

42

-90

N

N

N

CBAC076

AC

552,649

6,358,365

44

-90

N

N

N

CBAC077

AC

550,518

6,358,359

44

-90

N

N

N

CBAC078

AC

551,286

6,358,365

57

-90

N

N

N

CBAC079

AC

577,109

6,342,265

41

-90

N

N

N

CBAC080

AC

576,000

6,342,283

47

-90

N

N

N

CBAC081

AC

576,500

6,342,270

47

-90

N

N

N

CBAC082

AC

575,500

6,342,250

28

-90

N

N

N

CBAC083

AC

575,000

6,342,280

37

-90

N

N

N

CBAC084

AC

574,500

6,342,240

37

-90

N

N

N

CBAC085

AC

574,000

6,342,280

45

-90

N

N

N

CBAC086

AC

573,500

6,342,240

42

-90

N

N

N

CBAC087

AC

572,805

6,342,277

56

-90

N

N

N

CBAC088

AC

574,493

6,370,510

36

-90

N

N

N

CBAC089

AC

569,196

6,369,994

30

-90

N

N

N

CBAC090

AC

568,942

6,369,157

40

-90

N

N

N

CBAC091

AC

567,276

6,368,844

30

-90

N

N

N

 

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