Outstanding Zona 7 intercepts

RNS Number : 3226A
Berkeley Energy Limited
28 September 2015
 



BERKELEY ENERGY LIMITED

 

AIM RELEASE  |  28 SEPTEMBER 2015  inuity of the mineralisation and have reported significantly higher grades.

 

A number of the most recent results have recorded broad intersections with grades nearly fifteen times higher than the previously reported resource grade.

 

It is anticipated that these results will increase the overall grade of the upgraded mineral resource estimate which is currently being estimated and will be reported shortly.

 

Outstanding intercepts include high grade intersections recorded from shallow depths of just four metres from surface with thicknesses up to 52 metres:

 

·      13 metres @ 8,543 ppm U3O8

·      18 metres @ 3,658 ppm U3O8

·      14 metres @ 2,261 ppm U3O8

·      10 metres @ 2,118 ppm U3O8

·      52 metres @ 1,909 ppm U3O8

·      20 metres @ 1,565 ppm U3O8

·      12 metres @ 1,144 ppm U3O8

·      17 metres @ 1,354 ppm U3O8

·      31 metres @ 1,332 ppm U3O8

·      26 metres @ 1,327 ppm U3O8

 

The programme comprised ninety drill holes for 6,226 metres and has been designed to upgrade the resource to the Indicated category enabling the Zona 7 deposit to be incorporated into a Pre-Feasibility Study for the 100% owned Salamanca project which will be reported during the current quarter.

 

The inclusion of the deposit into the study will enable the overall economics of the project to be reported for the first time. The increase in the resource grade foreshadowed by these latest results combined with the recently reported impressive metallurgical testwork results is expected to increase the already significant positive impact the deposit will have on the overall economics of the project.

 

The deposit is located within ten kilometres of the approved location of the proposed processing plant and currently hosts an Inferred Mineral Resource Estimate of 23.2 million tonnes averaging 589 ppm U3O8 for 30.1 million pounds of U3O8 (at a 200 ppm U3O8 cut-off grade).

 

As previously advised given the very positive impact the deposit is expected to have on the project's economics the Board has decided to push ahead with the permitting required to rapidly incorporate this resource into the overall development of the Salamanca project.

 

For further information contact:

Paul Atherley

Hugo Schumann

John Prior / Paul Gillam

Managing Director

Corporate Manager

Numis Securities

+44 207 478 3900

+44 207 478 3900

Nomad & Broker
+44 207 260 1000

 

info@berkeleyenergy.com

 

 

 

Appendix A: Detailed Results

 

Drilling Program

 

The current drill program, comprising 90 RC holes for 6,226 metres, has been designed to close the broadly spaced 2014 drill pattern down to a notional 50 metre by 50 metre grid to facilitate the estimation of a revised Indicated Mineral Resource Estimate ('MRE') for the higher grade portion of Zona 7.

 

Drilling Results

 

Assay results from the 90 RC holes from the 2015 drilling program at Zona 7 are presented in this report. The holes reported have been drilled within Domain 6 area of the current MRE or outside the resource boundary to the SE and SW.

 

The mineralisation intersected in the drill holes has confirmed the continuity of thickness and grade above the 200 ppm U3O8 cut-off reported in the current MRE. Significant high grade intersections have been recorded at shallow depths (from 4 metres to a maximum depth of 101 metres), with thicknesses up to 52 metres. Select intercepts include:

 

Down Hole Intercept

From Depth

(Down Hole)

5m @ 1,800 ppm U3O8

50m

6m @ 1,422 ppm U3O8

54m

9m @ 808 ppm U3O8

13m

6m @ 801 ppm U3O8

13m @ 940 ppm U3O8

8m @ 1,173 ppm U3O8

10m

23m

53m

13m @ 805 ppm U3O8

27m

37m @ 689 ppm U3O8

16m

22m @ 1,257 ppm U3O8

18m

37m @ 883 ppm U3O8

10m

10m @ 2,118 ppm U3O8

50m

13m @ 1,425 ppm U3O8

73m

26m @ 1,327 ppm U3O8

17m

16m @ 951 ppm U3O8

42m

31m @ 1,332 ppm U3O8

21m

21m @ 767 ppm U3O8

34m

26m @ 1,103 ppm U3O8

43m

20m @ 1,565 ppm U3O8

24m

12m @ 1,144 ppm U3O8

21m

15m @ 854 ppm U3O8

40m

14m @ 2,261 ppm U3O8

5m

32m @ 867 ppm U3O8

22m

21m @ 1,150 ppm U3O8

21m

40m @ 949 ppm U3O8

7m

13m @ 8,543 ppm U3O8

8m

52m @ 1,909 ppm U3O8

9m

18m @ 3,658 ppm U3O8

10m

17m @ 1,354 ppm U3O8

29m

4m @ 1,877 ppm U3O8

52m

 

All significant intersections within the new drill holes, along with the details of the collar position, drill hole orientation and depth, are summarised in Appendix B.

 

Geological Setting

 

Zona 7 is a vein type deposit hosted in a sequence of fine grained metasediments which are overlain by a conglomerate unit and adjacent to a granite intrusive. The mineralised envelope is generally sub-horizontal and the mineralisation is contained within a stockwork of veins. The uranium mineralisation occurs both within the partially weathered zone and fresh rock.

 

Competent Persons Statement

 

The information in this announcement that relates to the 2015 Exploration Results is based on information compiled by Malcolm Titley, who is a Member of The Australasian Institute of Mining and Metallurgy. Mr. Titley is independent of Berkeley and Director of Maja Mining Limited, an independent consultancy based in the UK. Mr Titley 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 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Mr Titley consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

 

The information in this report that relates to 2014 Exploration Results is extracted from the reports entitled 'Thick, High Grade Mineralisation Intersected at Zona 7' dated 18 August 2014 and 'Further Thick, High Grade Drill Intersections at Zona 7' dated 10 November 2014 which are available to view on Berkeley's website at www.berkeleyenergy.com. The information in the original ASX Announcements that relate to the 2014 Exploration Results is based on information compiled by Robert Behets, a Competent Person who is a Fellow of The Australasian Institute of Mining and Metallurgy. Mr Behets is a holder of shares, options and performance rights in, and is a director of, Berkeley. Mr Behets 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 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. The Company confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from the original market announcements.

 

The information in this report that relates to the Mineral Resources is extracted from the report entitled 'Salamanca Project Total Resource increased by 43% to 88.2 Mlbs U3O8 following substantial increase in Zona 7 Resource' dated 26 November 2014 and is available to view on Berkeley's website at www.berkeleyenergy.com. The information in the original ASX Announcement that relates to the Mineral Resources for Zona 7 was based on information compiled by Malcolm Titley, a Competent Person who is a Member of The Australasian Institute of Mining and Metallurgy. Mr. Titley is independent of Berkeley and Director of Maja Mining Limited, an independent consultancy based in the UK. Mr Titley 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 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'.  The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, in the case of estimates of Mineral Resources that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from the original market announcement.

 

Forward Looking Statement

Statements regarding plans with respect to the Company's mineral properties are forward-looking statements. There can be no assurance that the Company's plans for development of its mineral properties will proceed as currently expected. There can also be no assurance that the Company will be able to confirm the presence of additional mineral deposits, that any mineralisation will prove to be economic or that a mine will successfully be developed on any of the Company's mineral properties.

 

Appendix B:  Summary of RC Drill Intersections - Zona 7 (200 ppm U3O8 cut-off)

Drill Hole ID

Easting

Northing

Elevation

Azimuth

Dip

Depth


From

To

Interval

U3O8 (ppm)

(m)

(m)

(m)

(o)

(o)

(m)

(m)

(m)

(m)

Z7R-143

713921

4526885

764

360

-90

52


23

26

3

715









29

31

2

218

Z7R-144

713724

4527046

760

360

-90

60


25

27

2

309









34

36

2

724








incl.

35

36

1

1,164

Z7R-145

713945

4526930

765

360

-90

64


26

27

1

336









50

55

5

1,800








incl.

51

52

1

7,003

Z7R-146

713670

4527068

762

360

-90

59


38

43

5

224

Z7R-147

714009

4526838

769

360

-90

50


12

13

1

241









37

38

1

226

Z7R-148

713635

4527092

763

360

-90

72


29

31

2

405









54

60

6

1,422








incl.

56

57

1

6,720

Z7R-149

713989

4526907

767

360

-90

55

No Significant Intercepts

Z7R-150

713614

4527160

760

360

-90

60


36

37

1

246









46

48

2

331

Z7R-151

714052

4526703

773

360

-90

70


44

46

2

423









60

62

2

377

Z7R-152

713831

4526820

765

360

-90

60


27

30

3

637









35

36

1

291

Z7R-153

714035

4526995

773

360

-90

64

No Significant Intercepts

Z7R-154

713919

4526773

768

360

-90

65

No Significant Intercepts

Z7R-155

713991

4527018

771

360

-90

64

No Significant Intercepts

Z7R-156

713742

4526866

763

360

-90

58

No Significant Intercepts

Z7R-157

713993

4527131

771

360

-90

88

No Significant Intercepts

Z7R-158

713653

4526913

763

360

-90

78

No Significant Intercepts

Z7R-159

714017

4527174

772

360

-90

50

No Significant Intercepts

Z7R-161

713747

4526980

760

360

-90

50

No Significant Intercepts

Z7R-162

713656

4527024

762

360

-90

50

No Significant Intercepts

Z7R-163

713812

4526998

759

360

-90

60


19

24

5

395

Z7R-164

713832

4526930

761

360

-90

52


23

24

1

219









28

37

9

302

Z7R-165

713767

4527022

759

360

-90

60

No Significant Intercepts

Z7R-166

713845

4526978

759

360

-90

59

No Significant Intercepts

Z7R-167

713828

4527035

758

360

-90

60


13

22

9

808








incl.

13

16

3

1,186

Z7R-168

713770

4527134

758

360

-90

72


10

16

6

801








incl.

14

16

2

2,084









23

36

13

940








incl.

25

28

3

1,604








incl.

30

31

1

3,230









41

42

1

2,429









47

48

1

374









53

61

8

1,173








incl.

56

61

5

1,740









64

67

3

599

Z7R-169

713747

4527090

759

360

-90

60


27

40

13

805








incl.

30

32

2

1,633








incl.

37

39

2

1,871

Z7R-171

713731

4527155

758

360

-90

64


16

53

37

689








incl.

21

22

1

2,358








incl.

37

41

4

1,993








incl.

45

47

2

1,488









56

58

2

791








incl.

57

58

1

1,185

Z7R-172

713860

4527196

755

360

-90

73


23

24

1

242









45

46

1

1,036









60

61

1

930









64

65

1

1,028

Z7R-173

713681

4527180

759

360

-90

70


21

29

8

275









32

46

14

472








incl.

34

35

1

1,851









52

54

2

272









60

61

1

271









65

66

1

518

Z7R-174

713816

4527222

755

360

-90

75


26

28

2

230









31

37

6

237









45

50

5

311









54

59

5

424

Z7R-175

713663

4527247

756

360

-90

70


39

45

6

216









65

66

1

275

Z7R-176

713794

4527178

756

360

-90

67


18

40

22

1,257








incl.

18

26

8

2,136








incl.

29

30

1

2,352








incl.

32

33

1

1,497









48

49

1

258

Z7R-177

713706

4527336

754

360

-90

52

No Significant Intercepts

Z7R-178

713773

4527246

755

360

-90

106


10

47

37

883








incl.

12

14

2

2,252








incl.

18

22

4

3,026








incl.

30

31

1

2,511








incl.

35

36

1

3,077








incl.

41

42

1

1,320









50

60

10

2,118








incl.

50

54

4

3,392








incl.

56

58

2

2,686









63

64

1

380









73

86

13

1,425








incl.

74

83

9

1,539








incl.

85

86

1

2,889









91

92

1

275









99

101

2

302

Z7R-179

713819

4527335

752

360

-90

61


17

43

26

1,327








incl.

20

23

3

2,955








incl.

25

32

7

1,865








incl.

35

36

1

2,146








incl.

38

39

1

3,667









52

56

4

263

Z7R-181

713776

4527357

753

360

-90

50


16

23

7

971








incl.

16

17

1

4,056









26

35

9

351









43

45

2

1,854

Z7R-182

713735

4527270

755

360

-90

79


32

33

1

404









36

40

4

380









43

60

17

560








incl.

46

47

1

3,466









66

67

1

844









70

72

2

257

Z7R-183

713754

4527424

751

360

-90

65


16

17

1

243









23

24

1

311









29

30

1

244









33

34

1

303

Z7R-184

713874

4527247

754

360

-90

64


25

26

1

289









31

39

8

794








incl.

35

38

3

1,468









42

58

16

951








incl.

43

48

5

1,684








incl.

57

58

1

3,655

Z7R-185

713800

4527514

748

360

-90

60


4

7

3

415

Z7R-186

714040

4527227

763

360

-90

60

No Significant Intercepts

Z7R-187

714064

4527262

766

360

-90

91


40

41

1

1,291









44

45

1

343









48

50

2

903








incl.

48

49

1

1,173









54

56

2

215









59

60

1

460









65

68

3

353

Z7R-188

713842

4527266

753

360

-90

62


21

52

31

1,332








incl.

22

24

2

2,116








incl.

35

41

6

3,611








incl.

46

49

3

2,568

Z7R-189

713982

4527314

757

360

-90

85


18

26

8

402









31

34

3

1,272








incl.

31

33

2

1,671









38

52

14

347








incl.

50

51

1

1,279









61

64

3

648








incl.

62

63

1

1,427

Z7R-190

713993

4527240

760

360

-90

79

No Significant Intercepts

Z7R-191

714043

4527330

764

360

-90

82


48

49

1

547









64

69

5

630








incl.

68

69

1

1,827









72

74

2

2,995








incl.

72

73

1

4,999









78

79

1

679

Z7R-192

713951

4527264

756

360

-90

70


16

31

15

237









36

37

1

290









52

53

1

802









64

65

1

328

Z7R-194

713995

4527347

758

360

-90

91


26

31

5

233









34

55

21

767








incl.

34

40

6

1,238








incl.

44

46

2

1,645









59

80

21

665








incl.

61

62

1

3,101








incl.

70

73

3

1,368









84

87

3

285

Z7R-195

713907

4527287

753

360

-90

60


13

16

3

261









20

21

1

259









38

52

14

436

Z7R-196

713947

4527226

757

211

-60

62


17

20

3

273









23

48

25

528








incl.

29

30

1

1,005








incl.

33

37

4

1,118









56

57

1

572

Z7R-197

713954

4527376

754

360

-90

75


30

40

10

635








incl.

39

40

1

2,246









43

69

26

1,103








incl.

43

47

4

3,973








incl.

56

57

1

1,256








incl.

65

66

1

4,928

Z7R-198

713889

4527348

752

360

-90

82


11

19

8

267









24

44

20

1,565








incl.

25

35

10

2,507








incl.

37

38

1

2,181

Z7R-199

713921

4527394

751

360

-90

64


4

18

14

408








incl.

15

16

1

1,851








incl.

17

18

1

1,034









21

33

12

1,144








incl.

23

26

3

2,906








incl.

29

30

1

1,763









40

55

15

854








incl.

42

48

6

1,477

Z7R-200

713933

4527443

751

360

-90

70


5

19

14

2,261








incl.

5

8

3

1,878








incl.

10

19

9

2,787









22

54

32

867








incl.

22

24

2

6,591








incl.

33

34

1

1,544








incl.

36

39

3

1,541








incl.

51

52

1

1,105

Z7R-201

713863

4527311

752

360

-90

60


21

42

21

1,150








incl.

22

27

5

1,844








incl.

30

34

4

1,755








incl.

36

38

2

1,374








incl.

40

41

1

1,309

Z7R-203

713824

4527446

749

360

-90

69


7

47

40

950








incl.

9

14

5

1,366








incl.

16

27

11

1,552








incl.

33

35

2

2,258

Z7R-204

713858

4527088

757

360

-90

69


8

21

13

8,543








incl.

12

20

8

13,607









35

36

1

338









39

40

1

295









42

43

1

239

Z7R-205

713866

4527423

750

360

-90

64


9

61

52

1,909








Incl.

10

11

1

1,491








Incl.

13

14

1

1,026








Incl.

15

16

1

1,078








Incl.

19

30

11

3,817








Incl.

36

39

3

3,136








Incl.

45

60

15

2,210

Z7R-206

713901

4526952

762

360

-90

60


8

9

1

357









13

15

2

226









28

30

2

1,622








incl.

28

29

1

2,547









46

47

1

205

Z7R-207

713847

4527602

746

360

-90

67


50

51

1

248









54

55

1

383









58

62

4

451

Z7R-208

713947

4527041

767

360

-90

75


27

29

2

961









32

40

8

336









49

51

2

458

Z7R-209

714014

4527543

752

78

-60

69


10

28

18

3,658








incl.

10

24

14

4,587









33

34

1

838

Z7R-210

713903

4527064

761

360

-90

75


21

25

4

893








incl.

23

24

1

2,488









28

29

1

1,054









32

46

14

714








incl.

32

33

1

3,372








incl.

35

36

1

2,034








incl.

40

41

1

1,527








incl.

45

46

1

1,013

Z7R-211

714058

4527520

754

73

-59

69


9

14

5

384









17

19

2

290









25

28

3

328









36

37

1

291









41

48

7

311









58

59

1

200

Z7R-212

713820

4527113

757

360

-90

65


5

22

17

648








incl.

12

13

1

1,592








incl.

16

18

2

1,184








incl.

21

22

1

1,757









29

46

17

1,354








incl.

29

31

2

4,050








incl.

38

39

1

2,523








incl.

42

44

2

4,224









52

56

4

1,877








incl.

52

55

3

2,398

Z7R-213

713996

4527566

751

121

-59

62


16

34

18

397








incl.

28

29

1

1,058








incl.

33

34

1

1,250









37

47

10

877








incl.

40

44

4

1,756

Z7R-214

713842

4527149

756

360

-90

75


15

16

1

1,916









32

33

1

411









62

63

1

350

Z7R-215

714078

4527445

760

77

-60

75


24

29

5

583








Incl.

27

28

1

2,081

Z7R-216

713905

4527176

756

360

-90

68


20

32

12

618








incl.

24

25

1

2,258









37

38

1

244









61

62

1

251

Z7R-217

714094

4527423

763

77

-58

63


21

31

10

289









38

55

17

570








incl.

51

53

2

1,772

Z7R-218

713943

4527143

764

42

-58

90


73

76

3

323

Z7R-220

713966

4527083

769

360

-90

95


59

60

1

332









67

73

6

562








 Incl.

68

69

1

1,698

Z7R-221

714257

4527470

763

257

-62

57


51

52

1

2,806

Z7R-222

714333

4527517

768

360

-90

55

No Significant Intercepts

Z7R-223

714241

4527523

761

257

-60

60


29

30

1

217









35

36

1

1,521









51

52

1

1,332

Z7R-224

714317

4527637

762

360

-90

50

No Significant Intercepts

Z7R-225

714187

4527706

754

360

-90

65


10

11

1

274

Z7R-226

714348

4527568

768

360

-90

50

No Significant Intercepts

Z7R-227

714270

4527551

762

360

-90

55


17

21

4

326









27

28

1

1,020









34

35

1

233

Z7R-228

714252

4527617

759

360

-90

80


17

26

9

237

Z7R-229

714246

4527574

760

236

-58

69


27

32

5

456








incl.

31

32

1

1,098









48

49

1

380









60

62

2

243

Z7R-230

714261

4527659

758

115

-60

60


33

34

1

225









38

41

3

535

Z7R-231

714161

4527663

755

214

-60

92


24

27

3

310









32

66

34

601








incl.

33

36

3

1,425

Z7R-233

714229

4527683

756

360

-90

80


22

30

8

410








incl.

27

28

1

1,332









33

34

1

619

Z7R-234

714096

4527754

751

360

-90

65


14

17

3

237









31

33

2

1,119








incl.

31

32

1

1,987









44

51

7

426

Z7R-235

714139

4527730

752

360

-90

58


22

23

1

381









35

46

11

224

Z7R-236

714069

4527713

751

211

-59

69


47

48

1

203

Z7R-237

714018

4527766

749

215

-60

75


39

40

1

442

Z7R-238

714050

4527775

750

360

-90

65


26

27

1

219

Z7R-239

714008

4527799

748

360

-90

60

No Significant Intercepts

 

 

Appendix C: JORC Code, 2012 Edition - Table 1 report

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.

All results reported are from Reverse Circulation (RC) drill samples collected over one metre (1m) intervals. Multiple methods were used to determine uranium mineralisation intervals including down hole gamma analysis, hand held scintillometer measurements and portable XRF analysis. Intervals containing uranium mineralisation were selected and submitted for laboratory assay analysis.


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

Standards and blanks are inserted into the sample stream to assess the accuracy, precision and methodology of the external laboratories used. In addition, field duplicate samples are inserted to assess the variability of the uranium mineralisation. Approximately 15-20% of all samples relate to quality control. In addition, the laboratories undertake their own duplicate sampling as part of their internal QA/QC processes. Examination of the QA/QC sample data indicates satisfactory performance of field sampling protocols and assay laboratories providing acceptable levels of precision and accuracy.

 

Drill hole collar locations are surveyed by qualified surveyors (Cubica Ingeniería Metrica S.L) using standard differential GPS (DGPS) equipment achieving sub decimetre accuracy in horizontal and vertical position. Down-hole surveys are undertaken using a Geovista down-hole deviation probe. Measurements are taken every 1cm down hole and averaged every 10m. No strongly magnetic rocks are present within the deposit which may affect magnetic based readings.


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.

RC drill samples are collected over 1m intervals, manually homogenised before being split on site using a three tier riffle splitter to provide an approximate 3-5kg sample. In rare cases, wet samples are split using a cone and quarter method.

 

Scintillometer measurements are taken on all samples and this data is used to select the samples to be sent to external laboratories for sample preparation and analysis. Indicative mineralised intervals are determined from this data and the sampling extended up and down hole by at least 2-5m.

 

Samples are further split in the core shed using a scoop such that 0.7-1kg samples are sent to the preparation laboratories of ALS and AGQ (Seville, Spain) and analytical laboratory of ALS (Loughrea, Ireland). Samples are dried, fine crushed down to 70% below 2mm, split to obtain 250g and pulverised with at least 85% of the sample passing 75µm. 10g of sample is used for uranium analysis by pressed powder X-ray fluorescence (XRF) method.

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 was by the RC method drilling using a 140mm diameter face sampling hammer.

Drill sample recovery

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

 

RC drill samples are collected over 1m intervals through a cyclone. Plastic sample bags are strapped to the cyclone to maximise sample recovery. Individual sample bags are not weighed to assess sample recovery but a visual inspection is made by the Company geologist to ensure all samples are of approximately equivalent size.


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

The RC drilling rigs utilised suitably sized compressors to ensure dry samples where possible. Plastic sample bags are strapped to the cyclone to maximise sample recovery. Sample logs record whether the sample is dry, moist or wet.


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.

There is no known relationship between sample recovery and grade. The RC sample recoveries are of an acceptable level and no bias is expected from any sample losses.

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.

Geological logging of RC chip samples includes recording descriptions of lithology, weathering, alteration and mineralisation. A scintillometer reading of counts per second (cps) is recorded for each 1m sample (quantitative).


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

Geological logging is qualitative in nature. RC samples and chip trays are photographed.


The total length and percentage of the relevant intersections logged.

All RC drill holes are logged in full by Company geologists.

Sub-sampling techniques

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

Not Applicable - RC drilling only.

 

and sample preparation

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

RC drill samples are collected at 1m intervals. RC intervals are sampled by splitting dry samples in the field to 3-5kg using a three tier riffle splitter and further split in the core shed to 0.7-1kg using a scoop. Where samples are wet they are dried prior to spitting. In rare cases, wet samples are split using a cone and quarter method.


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

Samples are sent to ALS and AGQ laboratories for preparation. Samples are dried, fine crushed down to 70% below 2mm and pulverised with at least 85% of the sample passing 75µm. 10g of sample is used for uranium analysis by pressed powder XRF method. This is considered appropriate for this style of uranium mineralisation.


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

Previous field tests have determined that the sample size and method of sampling produce representative RC samples. QA/QC procedures involve the use of standards, duplicates and blanks which are inserted into sample batches at a frequency of approximately 15-20%.


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.

Duplicate splits of RC samples are taken every 10m down hole within the sampled intervals. The results from these duplicates generally show acceptable repeatability, however indications of inhomogeneity were observed in a number of duplicates.


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

The uranium is typically very fine grained. Previous test work carried out by Berkeley using different sample sizes has demonstrated that the selected sample size is appropriate.

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.

Uranium analysis by pressed powder XRF method. This analytical method reports total uranium content.


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.

Down-hole gamma logging is undertaken for all probe accessible drill holes to provide eU3O8 ("equivalent" U3O8 grade) data however, it is not currently considered of sufficient quality to replace chemical assay data for the purposes of reporting drilling results at Zona 7. The drill intersections reported in this release are calculated using only chemical assay data.


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.

Standards, blanks and duplicates are regularly inserted into the sample stream with approximately 15-20% of all samples related to quality control. The external laboratories used also maintain their own process of QA/QC utilising standards, pulp repeats, sample duplicates and blanks.

 

Review of the Berkeley quality control samples, as well as the external laboratory quality QA/QC reports, has shown no sample preparation issues, acceptable levels of accuracy and precision and no bias in the analytical datasets.

Verification of sampling and assaying

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

 

Reported significant intersections have been checked and verified by Senior Geological management.


The use of twinned holes.

No twinned holes were drilled in the current RC drilling program.


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

All primary data is recorded in templates designed by Berkeley. Assay data from the external laboratory is received in spreadsheets and downloaded directly into an Access Database managed by the Company. Data is entered into controlled excel templates for validation. The validated data is then loaded into a password secured relational database by a designated Company geologist. Daily backups of all digital data are undertaken. These procedures are documented in the Berkeley Technical Procedures and Protocols manual.


Discuss any adjustment to assay data.

Uranium (ppm) assays received from the external laboratory are converted to U3O8 (ppm) using the stoichiometric factor of 1.179.

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.

Drill hole collar locations are surveyed by qualified surveyors (Cubica Ingeniería Metrica S.L) using standard differential GPS (DGPS) equipment achieving sub decimetre accuracy in horizontal and vertical position.

 

Down-hole surveys are undertaken using a Geovista down-hole deviation probe. Measurements are taken every 1cm down hole and averaged every 10m. No strongly magnetic rocks are present within the deposit which may affect magnetic based readings.


Specification of the grid system used.

The grid system is ETRS 1989 UTM Zone 29N.


Quality and adequacy of topographic control.

Topographic control is based on a digital terrain model with sub metric accuracy sourced from the Spanish Geographical Institute (Instituto Geográfico Nacional) and is verified through detailed drill hole collar surveys by a qualified surveyor using a DGPS.

Data spacing and distribution

Data spacing for reporting of Exploration Results.

This RC drilling program has been designed to close the current broadly spaced drill pattern down to a notional 50m by 50m grid.


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.

The data spacing (notionally 50m by 50m) is considered sufficient to assume geological and grade continuity, and will allow the estimation of Indicated Mineral Resources.

 


Whether sample compositing has been applied.

No compositing of RC samples in the field has been undertaken.

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.

The mineralised zone strikes northeast-southwest and is interpreted to be sub-horizontal (due to post mineralisation supergene processes) to shallowly dipping.


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.

All of the RC drill holes reported in this release are vertical. Due to the interpreted flat lying nature of the mineralisation, no sampling bias is considered to have been introduced by the orientation of the drilling.

Sample security

The measures taken to ensure sample security.

Chain of custody is managed by Berkeley. Samples are transported from the drill site by Company vehicle to a sample preparation shed where samples are prepared for dispatch. Samples are sent directly from the sample preparation shed to the laboratory using a certified courier or a Berkeley owned vehicle authorised for radioactive materials transport. No other freight is transported with the samples which are taken directly from the Berkeley facility to the external laboratory. Sample submission forms are sent in paper form with the samples as well as electronically to the laboratory. Reconciliation of samples occurs prior to commencement of sample preparation for assaying.

Audits or reviews

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

Sampling techniques and procedures, as well as QA/QC data, are reviewed internally an ongoing basis. Mr Malcolm Titley (Geology Consultant, Maja Mining Limited) has independently reviewed the sampling techniques, procedures and data. He has undertaken a site visit to review and inspect the application of procedures. These reviews have concluded that the sampling and analytical results have resulted in data suitable for incorporation into Mineral Resource estimation.

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 Zona 7 Prospect lies on the Alisos Investigation Permit PI 6605-20 which is 100% owned by Minera de Río Alagón, a wholly owned subsidiary of Berkeley Energy Limited.

 

The Alisos Investigation Permit is currently in the second year of its second three year term and will expire on 4 January 2017.

 

No historical sites, wilderness or national parks are located within the Permit. The Zona 7 Prospect is located adjacent to the village of Villavieja de Yeltes.


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.

Tenure in the form of an Investigation Permit has been granted and is considered secure. There are no known impediments to obtaining a licence to operate in this area.

Exploration done by other parties

Acknowledgment and appraisal of exploration by other parties.

Previous exploration at Zona 7 was completed initially by Junta de Energía Nuclear (JEN) and then Empresa Nacional de Uranio S.A. (ENUSA), both Spanish state run companies, from the late 1950's through to the mid 1980's. Work completed by JEN and ENUSA included mapping, radiometric surveys, trenching and diamond (DD) and open-hole (OH) drilling.

 

A detailed data assessment and verification of the historic data supplied by ENUSA has been undertaken. No significant issues with the data were detected.

Geology

Deposit type, geological setting and style of mineralisation.

The uranium mineralisation is hosted within Ordovician metasediments adjacent to granite. The mineralisation typically occurs as a sub-horizontal to shallowly dipping layer occurring between surface and 100m depth. The style of the uranium mineralisation includes veins, stockwork and disseminated mineralisation in joint/fracture filling associated with brittle deformation. Uraninite and coffinite are the primary uranium minerals. Secondary uranium mineralisation is developed in "supergene-like" tabular zones corresponding to the depth of weathering. Most of the mineralisation is hosted within partially weathered and unweathered metasediment. This deposit falls into the category defined by the International Atomic Energy Association (IAEA) as Vein Type, Sub Type Iberian Type.

Drill hole Information

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:

o easting and northing of the drill hole collar

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

o dip and azimuth of the hole

o down hole length and interception depth

o hole length.

Details of all reported drill holes are provided in Appendix A of this release.

 

 


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.

All of this information is Material and has been included in Appendix A of this release.

 

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.

Reported drill intersections are based on chemical assay data and are calculated using a 200ppm U3O8 cut-off, no high grade cut, and may include up to 2m of internal dilution.

 


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.

High grade intervals that are internal to broader zones of uranium mineralisation are reported as included intervals.


The assumptions used for any reporting of metal equivalent values should be clearly stated.

No metal equivalent values are used.

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.

All drilling is planned in such a way as to intersect expected mineralisation in a perpendicular manner. The uranium mineralisation is interpreted to be flat lying to shallowly dipping so the majority of the RC holes have been drilled vertically. The reported down-hole intervals are therefore interpreted to approximate true widths.


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').

The reported down-hole intervals are interpreted to approximate true widths.

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.

Appropriate diagrams, including a drill plan and cross sections, are included in the main body of this release.

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.

All results are reported in Appendix A of this release.

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.

Down-hole gamma logging of all holes is undertaken to provide eU3O8 data. Prior comparisons of eU3O8 data with chemical assay data have shown that on average eU3O8 tends to underestimate at higher grades (>600ppm) and overestimate at lower grades (<100ppm). Accordingly, the eU3O8 data is not considered of sufficient quality to replace chemical assay data for the purposes of reporting drilling results. The drill intersections reported in this release are calculated using only chemical assay data.

Further work

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

 

Further work planned for the Zona 7 Prospect includes detailed geological interpretation and an update of the Mineral Resource estimate incorporating the results of the 2015 drilling programs.

 

Following the update of the Mineral Resource estimate, additional drilling will be focused on extending the mineralisation further along strike and infilling the current grid to facilitate future upgrading of the resource classification.


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

These are shown in the main body of this release.

 

 

 


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