Drilling Report
10 September 2007 - 9:01AM
UK Regulatory
RNS Number:5141D
Griffin Mining Ld
10 September 2007
GRIFFIN MINING LIMITED
60 St James's Street, London SW1A 1LE, United Kingdom
Telephone: + 44 (0)20 7629 7772 Facsimile: + 44 (0)20 7629 7773
E mail: griffin@griffinmining.com
10th September 2007
OUTSTANDING ZINC & GOLD DRILLING RESULTS
CONFIRMATORY RESULTS OF PROBABLE AMALGAMATION OF ZONES II & III AT CAIJIAYING
Griffin Mining Limited ("Griffin" or the "Company") is pleased to announce the
latest exploration results from its Caijiaying Mine and adjacent ground.
Drill intercepts of high-grade gold have been obtained in the mine area at Zone
III as well as significant regional exploration results which suggest a second
multi-metal mine is likely to be established at Zone II, 1.2 kilometers to the
south of the Caijiaying Mine.
These results coincide with the planned start of production of gold, silver and
lead from the Caijiaying processing plant upgrade due for completion before the
year's end.
Best intercepts from Zone III included:
* 12.45 metres at 7.45% Zinc and 8.55 g/t Gold
* 12.35 metres at 8.31% Zinc and 6.15 g/t Gold
* 31.7 metres at 6.2% Zinc and 6.07 g/t Gold
* 4.3 metres at 17.54% Zinc and 20.65 g/t Gold
Best intercepts from Zone II included:
* 47.54 metres at 7.68% Zinc
* 28.25 metres at 9.20% Zinc
* 22.25 metres at 9.19% Zinc
* 12.6 metres at 9.15% Zinc
Zone III Mine Resource Extension Drilling
Diamond drilling aimed at extending known resources at the Caijiaying Mine
continues to find new discoveries. In particular, a number of high-grade gold
intersections have been recorded from zinc lodes beneath the current mining
level in the western part of the deposit. Better intersections in recent drill
holes include:
Hole ID From To Interval Zn Pb Ag Au
metres metres metres % % g/t g/t
UGCJY-938 43.70 95.90 12.45 7.45 0.30 74 8.55
UGCJY-939 67.75 80.20 12.35 8.31 0.22 30 6.15
UGJCY-940 46.00 58.35 2.20 6.61 0.05 37 6.22
UGCJY-875 45.20 47.40 2.20 17.14 0.34 59 9.85
UGCJY-854 55.00 92.95 28.60 7.30 0.53 54 2.41
UGCJY-922 49.05 77.65 2.15 6.49 0.16 33 5.77
UGCJY-857 41.00 43.15 4.30 17.54 0.53 162 20.65
" 53.55 57.85 4.30 6.79 0.17 32 4.94
UGCJY-855 61.45 96.15 31.70 6.20 0.04 23 6.07
UGCJY-895 4.30 36.00 5.30 8.80 0.04 38 3.77
UGCJY-811 44.40 49.70 14.00 15.69 0.79 52 1.86
UGCJY-913 71.00 85.00 14.00 5.03 0.29 10 0.32
" 91.00 101.00 10.00 12.90 0.43 17 0.16
UGCJY-846 48.00 59.00 11.00 11.20 0.35 18 -
" 67.00 73.00 6.00 8.45 0.18 11 -
" 98.00 112.00 14.00 8.10 0.09 49 -
UGCJY-908 48.00 61.00 13.00 10.00 0.11 69 3.10
Many of the ore zones show good geological continuity and remain open along
strike and down-dip. The mine schedule will be altered to enable further
drilling in these areas to determine the full extent of the gold zones and to
ensure that the precious metals circuit of the process plant is fully
commissioned before treating such high gold grades.
Regional Exploration
Excellent drilling results have also been received from the ongoing underground
drilling program at Zone II, located approximately 1.5 kilometres south of the
Caijiaying Mine.
Thirty-seven holes of the 50-hole program have been completed, with ore-grade
results received from thirty-six of those holes. The high grade results of lead
and silver should be noted. Following completion of the program, a maiden
resource estimate will be completed to enable development decisions to be made.
Better intersections (above 5% Zn + Pb and a 1% lower cut-off) are shown:
High-grade Drilling Results - Zone II
Hole From To To Zn Pb Ag Au
metres Metres Metres % % g/t g/t
UGFOX-002 40.72 45.90 5.18 5.11 3.99 106 1.07
UGFOX-004 87.20 90.50 3.30 5.36 - - -
" 142.54 145.87 3.33 0.95 7.38 246 0.79
UGFOX-007 119.55 122.60 3.05 5.92 - - -
UGFOX-013 28.55 36.10 8.45 1.08 4.2 94 -
" 93.00 115.25 22.25 9.19 - - -
UGFOX-014 28.68 34.50 5.82 8.38 4.32 92 1.21
" 103.20 113.10 9.90 11.71 - - -
UGFOX-018 144.70 156.30 12.60 9.15 1.37 51 0.66
UGFOX-022 101.95 105.67 3.72 5.14 - - -
UGFOX-031A 51.82 55.22 3.40 4.44 1.94 51 1.22
" 134.01 181.55 47.54 7.68 0.61 28 0.21
" 134.01 140.70 6.69 12.07 0.31 18 0.17
UGFOX-032 143.30 171.55 28.25 9.20 1.38 33 0.31
Griffin has also completed an 11 hole surface diamond drilling program which
tested targets defined in a 2006 IP geophysical program south of the Caijiaying
Mine between Zones II and III, and targets based on historical drill holes.
Ore-grade mineralization has been discovered at one IP target and one drill hole
target.
2007 Surface Drilling Results - Zone II - III
Hole From To To Zn Pb Ag Au
metres Metres Metres % % g/t g/t
DDCJY-006 163.00 173.84 10.84 3.66 - - -
" 200.50 203.55 3.05 7.42 - - 1.65
" 231.75 242.10 9.25 3.45 - - -
DDCJY-009 80.31 84.06 3.75 5.38 7.88 140 0.59
" 115.00 127.57 12.57 5.47 1.38 72 -
" 196.40 204.27 7.87 4.18 - 29 -
" 207.62 211.00 3.38 12.34 - 14 -
DDCJY-011 80.68 90.69 10.01 7.88 - 39 -
The IP target is situated just 300 metres south of the Caijiaying mine access
decline (Holes DDCJY-006 & 009), which provides an opportunity for rapid
development of this area. Follow-up exploration is planned by branching off the
decline to enable underground drill testing. The mineralization is thought to
be an extension of a Zone III orebody displaced by faulting.
Drill hole DDCJY-011 is located 230 metres northeast of Zone II where historic
Chinese drilling intersected some broad zones of lower grade mineralization.
Essentially, this target is a northern extension of the Zone II mineralisation
which was too far away for the current underground program to reach.
Both successful targets are currently being followed up by a further surface
diamond drilling program as a pre-cursor to extending underground access for
detailed drill outs.
The technical data contained in this disclosure has been compiled and approved
by Mr. Timothy Blyth, Ass Dip (Geology), MAusIMM. Mr. Blyth is a full time
employee of Hebei Hua Ao Mining Industry Company Ltd, and is the Operations
Manager at the Caijiaying Zinc Mine. He is a geologist with 24 years relevant
experience in the mining industry. Mr. Blyth is a member of the Australasian
Institute of Mining and Metallurgy and qualifies as a Competent Person as
defined in the Australasian Code for Reporting of Exploration Results, Mineral
Resources and Ore Reserves (The JORC Code).
Chairman Mladen Ninkov commented "The successful results from both the northern
and southern ends of the valley, south of the Caijiaying Mine in Zone III,
provides further proof to the Company's long held belief that Zone II and Zone
III will eventually be proven to be one continuous orebody. Taken in
conjunction with the outstanding gold results from the Caijiaying Mine area, it
begins to show the true size of the Caijiaying mineralized system and the
potential for further increasing the Caijiaying Mine's production of zinc, gold,
silver, lead and other by-products. I am so pleased for the loyal shareholders
of the Company"
Further information
Mladen Ninkov - Chairman Telephone: +44(0)20 7629 7772
Roger Goodwin - Finance Director
Griffin Mining Limited
Adrian Hadden Telephone: +44(0)20 7523 8353
Collins Stewart Europe Limited
Hugo de Salis Telephone: +44(0) 20 7242 4477
St Brides Media & Finance Ltd
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
This information is provided by RNS
The company news service from the London Stock Exchange
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