Drilling Report

RNS Number : 9596D
Griffin Mining Ld
24 May 2012
 



 

Griffin Mining Limited

 

Excellent New Drilling Results Post New JORC Resource

 

24th May 2012

 

Griffin Mining Limited ("Griffin" or "the Company") is delighted to announce continued excellent results from underground diamond drilling at its Caijiaying mine in northern China. The Company conducted a comprehensive program of diamond drilling comprising 190 underground drill holes for 30,244 metres.  None of these assays were obtained in time to be included in the announced JORC Resource of the 22nd May 2012. The major results of the drilling program have been summarised in the attached Appendix.

 

Better gold assays included:

 

37.4 metres @ 6.55 g/t gold & 4.33% zinc

35.0 metres @ 5.23 g/t gold & 4.47% zinc

28.5 metres @ 3.42 g/t gold & 1.92% zinc

13.00 metres @ 7.31 g/t gold & 3.45% zinc

11.0 metres @ 8.98 g/t gold & 12.63% zinc

9.50 metres @ 7.53 g/t gold & 6.65% zinc

8.45 metres @ 6.85 g/t gold & 7.89% zinc

7.05 metres @ 7.81 g/t gold & 5.74% zinc

7.05 metres @ 7.08 g/t gold & 6.26% zinc

6.50 metres @ 5.38 g/t gold & 3.24% zinc

6.05 metres @ 4.16 g/t gold & 7.81% zinc

5.85 metres @ 6.38 g/t gold & 8.76% zinc

5.60 metres @ 11.90 g/t gold & 9.66% zinc

4.95 metres @ 8.98 g/t gold

4.30 metres @ 9.57 g/t gold & 2.70% zinc

4.05 metres @ 6.09 g/t gold & 11.48% zinc

4.00 metres @ 20.13 g/t gold & 7.38% zinc

 

Better zinc assays included:

 

25.40 metres @ 15.50% zinc

30.00 metres @ 10.91% zinc

26.40 metres @ 6.81% zinc

26.20 metres @ 8.47% zinc & 3.74 g/t gold

24.90 metres @ 7.50% zinc

20.30 metres @ 7.54% zinc

17.30 metres @ 9.22% zinc

16.40 metres @ 11.04% zinc

16.30 metres @ 13.32% zinc & 3.32 g/t gold

14.55 metres @ 9.32% zinc & 2.16g/t gold

11.00 metres @ 10.21% zinc

 

 

 

High-grade gold mineralization was identified in underground extensions of the Ju Long, Fu Long, Xiao Long and Qing Long ore bodies. In addition to the high-grade gold intersections, Griffin continues to intersect high-grade zinc zones within a wider envelope of medium-grade zinc-gold-lead-silver ore. Drilling will continue during 2012 to further delineate and evaluate the highly prospective corridor of mineralization.

 

The discovery of this new high-grade gold, zinc, lead and silver mineralization within the Caijiaying ore body can be expected to make a significant and increasing contribution to mine revenue

 

 

Chairman's Statement

 

Chairman Mladen Ninkov commented, "Even after the production of an exceptional new JORC resource, further new drill results exemplify the ever increasing size of this world class, polymetallic, orebody.  The enduring faith of the Company's shareholders continues to be repaid in abundance.  I could not be more delighted for our shareholders."

 

 

  

Further information

 

Griffin Mining Limited

Mladen Ninkov - Chairman                                     Telephone: +44(0)20 7629 7772

Roger Goodwin - Finance Director

 

Panmure Gordon (UK) Limited                                                Telephone: +44 (0) 20 7459 3600

                  Dominic Morley

                Hannah Woodley

 

Griffin Mining Limited's shares are quoted on the Alternative Investment Market (AIM) of the London Stock Exchange (symbol GFM).  The Company's news releases are available on the Company's web site: www.griffinmining.com

 

  

 

APPENDIX

 

The following table contains all significant underground gold intersections;

 

Hole No.

From (metres)

To (metres)

Interval (metres)

Gold (g/t)

Zinc (%)

Lead (%)

Silver (g/t)

UGCJY-1981

52.80

56.60

3.80

3.53

3.72

0.50

51

UGCJY-1982

46.15

52.00

5.85

6.38

8.76

0.19

37

UGCJY-1982

61.00

67.80

6.80

2.52

6.02

0.26

51

UGCJY-1982

72.15

76.70

4.55

3.52

4.63

0.10

26

UGCJY-1982

82.00

92.00

10.00

2.81

3.98

0.27

27

UGCJY-1983

100.25

102.35

2.10

6.41

13.61

0.23

86

UGCJY-1983

105.50

109.20

3.70

3.00

2.97

0.01

9

UGCJY-1983

194.25

200.30

6.05

4.16

7.81

0.02

7

UGCJY-1987

49.50

57.45

7.95

2.10

4.53

0.02

11

UGCJY-1988

41.70

49.65

7.95

2.41

1.01

0.01

19

UGCJY-1989

17.20

19.40

2.20

2.59

5.25

0.01

6

UGCJY-1990

78.50

83.80

5.30

2.67

6.33

0.02

7

UGCJY-1992

23.70

26.50

2.80

5.23

7.80

0.87

42

UGCJY-1992

131.90

134.00

2.10

31.67

7.97

0.05

72

UGCJY-1992

177.30

181.00

3.70

10.04

3.95

0.12

38

UGCJY-1993

23.10

25.30

2.20

2.96

11.29

0.31

35

UGCJY-1993

140.80

143.80

3.00

1.91

0.26

0.04

7

UGCJY-1994

18.00

20.90

2.90

1.71

9.03

0.16

35

UGCJY-1994

23.30

27.35

4.05

6.09

11.48

0.33

54

UGCJY-1994

51.15

55.40

4.25

2.34

2.32

0.03

34

UGCJY-1996

33.00

41.45

8.45

6.85

7.89

0.29

40

UGCJY-1997

63.25

70.75

7.50

3.63

7.27

0.17

52

UGCJY-1997

80.30

89.60

9.30

1.97

2.50

0.01

6

UGCJY-1997

106.10

110.75

4.65

1.98

4.17

0.05

20

UGCJY-2001

15.40

18.00

2.60

4.78

10.65

0.01

13

UGCJY-2001

31.00

38.80

7.80

2.60

1.52

0.01

6

UGCJY-2002

14.20

18.00

3.80

3.59

6.79

0.11

43

UGCJY-2003

13.40

16.20

2.80

1.66

0.73

0.01

7

UGCJY-2006

54.80

61.40

6.60

1.54

6.82

0.04

7

UGCJY-2006

91.80

94.15

2.35

1.66

7.31

0.01

6

UGCJY-2014

83.90

87.00

3.10

2.67

0.90

0.87

6

UGCJY-2014

128.40

132.00

3.60

2.33

2.45

0.49

36

UGCJY-2014

135.00

138.90

3.90

2.62

3.08

1.25

24

UGCJY-2015

88.60

90.60

2.00

7.66

6.54

0.07

25

UGCJY-2021

79.50

89.00

9.50

2.12

3.98

0.66

21

UGCJY-2021

98.20

103.90

5.70

1.75

2.23

0.01

9

UGCJY-2021

113.15

116.20

3.05

1.29

3.08

0.03

15

UGCJY-2022

177.50

180.00

2.50

20.59

4.27

0.03

41

UGCJY-2029

0.60

4.60

4.00

20.13

7.38

0.22

87

UGCJY-2032

8.20

11.20

3.00

2.13

7.31

1.32

49

UGCJY-2033

2.15

5.15

3.00

2.06

7.19

0.80

49

UGCJY-2033

15.00

18.20

3.20

1.22

12.34

0.55

62

UGCJY-2041

30.50

34.50

4.00

2.10

6.04

1.36

149

UGCJY-2052

34.50

44.00

9.50

7.53

6.65

0.02

13

UGCJY-2052

138.00

140.00

2.00

1.30

2.01

0.03

9

UGCJY-2056

58.90

65.95

7.05

7.81

5.74

0.06

45

UGCJY-2057

47.50

58.10

10.60

1.95

2.83

0.07

21

UGCJY-2057

65.00

102.40

37.40

6.55

4.33

0.11

49

UGCJY-2057

179.30

181.85

2.55

3.90

4.97

0.01

6

UGCJY-2075

17.70

22.05

4.35

3.34

4.54

0.05

37

UGCJY-2075

26.80

30.05

3.25

2.73

4.24

0.12

38

UGCJY-2077

17.60

20.05

2.45

32.23

10.46

0.05

35

UGCJY-2078

16.20

22.30

6.10

2.37

2.69

0.08

12

UGCJY-2079

42.60

45.35

2.75

10.77

5.06

0.03

37

UGCJY-2081

72.70

76.90

4.20

1.17

5.35

0.85

162

UGCJY-2082

128.00

131.30

3.30

0.96

0.96

0.00

3

UGCJY-2084

47.70

50.00

2.30

2.54

4.11

0.08

15

UGCJY-2084

68.25

73.85

5.60

11.90

9.66

0.04

33

UGCJY-2084

150.20

152.20

2.00

3.00

0.41

0.02

11

UGCJY-2085

46.20

52.70

6.50

5.38

3.24

0.12

20

UGCJY-2085

70.50

73.02

2.52

5.90

2.23

0.01

6

UGCJY-2085

146.00

159.00

13.00

7.31

3.45

0.01

6

UGCJY-2086

48.15

54.70

6.55

3.99

4.73

0.25

17

UGCJY-2086

68.50

71.65

3.15

17.79

9.40

0.08

41

UGCJY-2088

47.40

52.90

5.50

3.65

6.20

0.06

10

UGCJY-2088

166.80

169.25

2.45

28.35

4.05

0.01

16

UGCJY-2089

52.20

58.70

6.50

1.74

2.66

0.04

8

UGCJY-2089

133.15

140.00

6.85

2.88

2.68

0.20

21

UGCJY-2089

186.40

192.65

6.25

4.40

2.69

0.01

5

UGCJY-2090

58.00

61.00

3.00

9.20

5.94

0.25

23

UGCJY-2090

70.55

105.55

35.00

5.23

4.47

0.21

50

UGCJY-2090

170.65

175.00

4.35

5.80

3.66

0.07

30

UGCJY-2099

99.30

102.30

3.00

1.56

11.14

0.01

9

UGCJY-2101

53.70

55.70

2.00

2.36

0.29

0.03

7

UGCJY-2103A

54.55

56.55

2.00

9.56

5.44

0.08

13

UGCJY-2103A

97.00

101.95

4.95

8.98

0.13

0.14

79

UGCJY-2104

14.00

25.00

11.00

8.98

12.63

1.37

117

UGCJY-2107A

22.00

27.00

5.00

1.20

5.82

0.68

34

UGCJY-2110

90.30

94.30

4.00

2.47

1.76

0.08

12

UGCJY-2110

143.80

146.00

2.20

4.25

5.19

0.14

67

UGCJY-2111

195.40

199.00

3.60

2.70

1.81

0.01

5

UGCJY-2113

38.80

44.45

5.65

1.99

3.51

0.04

17

UGCJY-2113

54.50

61.55

7.05

7.08

6.26

0.07

47

UGCJY-2114

39.00

67.50

28.50

3.42

1.92

0.05

29

UGCJY-2114

71.50

74.50

3.00

2.62

1.20

0.01

5

UGCJY-2115A

97.90

108.80

10.90

2.69

4.05

0.02

14

UGCJY-2115A

121.85

132.20

10.35

1.56

1.80

0.01

4

UGCJY-2115A

147.40

152.10

4.70

2.39

2.48

0.02

31

UGCJY-2117

176.90

179.70

2.80

2.39

2.76

0.01

5

UGCJY-2118

44.90

47.00

2.10

26.26

12.54

0.41

36

UGCJY-2118

194.40

196.90

2.50

1.61

0.89

0.06

11

UGCJY-2120

110.35

112.85

2.50

5.69

12.55

0.05

14

UGCJY-2120

121.40

137.00

15.60

1.81

1.44

0.43

39

UGCJY-2120

140.80

145.10

4.30

9.57

2.70

0.09

28

UGCJY-2130

13.90

18.20

4.30

3.06

1.47

1.30

30

UGCJY-2138

40.90

43.20

2.30

5.53

5.21

0.15

79

UGCJY-2138

83.50

88.00

4.50

1.65

2.97

0.04

14

UGCJY-2143

39.30

45.60

6.30

1.60

5.34

0.42

52

 

1g/t gold cut-off with a maximum of 2m of internal dilution and a minimum length of 2m.

 

 

The following table contains all significant underground zinc intersections;

 

Hole No.

From (metres)

To (metres)

Interval (metres)

Zinc (%)

Lead (%)

Silver (g/t)

Gold (g/t)

UGCJY-1982

72.15

83.30

11.15

4.36

0.14

20

1.70

UGCJY-1986

61.00

72.00

11.00

10.21

0.23

28

0.40

UGCJY-1994

12.80

27.35

14.55

9.32

0.27

36

2.16

UGCJY-1996

31.00

44.80

13.80

7.99

0.20

29

4.53

UGCJY-2006

54.80

65.30

10.50

7.63

0.15

11

1.15

UGCJY-2006

67.40

78.00

10.60

8.99

0.02

10

0.49

UGCJY-2021

75.30

86.75

11.45

4.07

0.55

19

1.56

UGCJY-2022

147.60

173.00

25.40

15.50

0.09

22

0.18

UGCJY-2022

178.85

196.10

17.25

6.40

0.07

40

2.95

UGCJY-2023

111.00

121.90

10.90

7.47

0.23

20

0.34

UGCJY-2040

25.00

37.00

12.0

6.11

0.98

75

0.08

UGCJY-2041

20.30

38.50

18.2

7.25

1.26

100

0.89

UGCJY-2044

62.90

79.20

16.3

13.32

0.30

59

3.21

UGCJY-2044

81.70

111.70

30.0

10.91

0.48

44

0.21

UGCJY-2045

127.20

139.80

12.6

7.03

0.21

23

0.64

UGCJY-2052

152.10

178.50

26.4

6.81

0.37

15

0.36

UGCJY-2053

143.30

153.30

10.0

5.46

0.10

11

0.64

UGCJY-2057

65.00

77.00

12.0

8.62

0.23

107

12.63

UGCJY-2058

54.95

66.50

11.6

5.93

0.58

91

0.69

UGCJY-2061

99.15

110.20

11.1

5.38

0.40

30

0.19

UGCJY-2076

45.80

58.00

12.2

6.10

0.01

6

0.38

UGCJY-2083

152.00

176.90

24.9

7.50

0.55

28

0.36

UGCJY-2090

70.55

84.50

14.0

6.18

0.23

78

7.91

UGCJY-2090

87.50

99.10

11.6

4.21

0.19

36

4.09

UGCJY-2091

96.50

113.80

17.3

9.22

0.32

38

0.27

UGCJY-2098

70.70

81.90

11.2

8.07

0.08

20

0.07

UGCJY-2099

86.15

106.45

20.3

7.54

0.04

13

0.41

UGCJY-2106

95.00

107.50

12.5

5.52

0.41

25

0.13

UGCJY-2109

131.70

147.30

15.6

14.70

0.28

56

0.14

UGCJY-2119

62.70

88.90

26.2

8.47

0.56

58

3.74

UGCJY-2131

55.15

71.50

16.4

11.04

0.40

40

0.28

UGCJY-2139

26.45

37.50

11.1

6.39

0.30

73

0.09

UGCJY-2143

34.95

45.60

10.7

6.90

0.52

69

1.17

UGCJY-2158

74.00

86.05

12.1

6.42

0.15

34


UGCJY-2160

47.00

57.50

10.5

6.32

0.05

11


UGCJY-2179

163.50

182.25

18.8

6.30

0.64

57


 

Using a 3% zinc cut-off with 2m of internal dilution and a minimum length of 10m.

 

 

 

Competent Person Statement

The data in this report that relates to exploration results for the Caijiaying Area, China, is based on information reviewed by Mr Nigel Wilson who is a Member of the Australian Institute of Geoscientists.  Mr Wilson is a full time employee of CSA Global Limited.  Mr Wilson has sufficient experience 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 2004 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Wilson consents to the inclusion in the report of the exploration results in the form and context in which they appear.


This information is provided by RNS
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