Bullabulling RC Drilling Programme Update
September 22 2010 - 2:00AM
UK Regulatory
TIDMGGG
GGG Resources plc
(the "Company" or "GGG")
A$2 million feasibility drill programme starts October
22 September 2010
GGG Resources plc, in conjunction with its 50:50 joint venture ("JV") partner
Auzex Resources Limited, is pleased to announce a A$ 2,000,000 drilling
programme at its Bullabulling Gold Project, the site of a former gold mine in
Western Australia.
The Bullabulling Project is sited in Western Australia's Coolgardie gold mining
district, and has already been granted a series of mining leases.
Extensive existing data based on over 12,000 historic drill holes suggests that
it could yield large, open pittable gold deposits with several high grade
lodes. On 16 August this year the JV partners reported JORC compliant inferred
resources of 41,517,000 tonnes @ 1.48 g/t Au for 1.98 million ounces of gold at
a 0.7 g/t Au cut off. This estimation is to an assumed economic mining depth of
approximately 120m. That mineral resource excludes all historic production and
does not include historic surface dumps that contain approximately 12,000
ounces of gold in the indicated mineral resource category.
A Programme of Works ("POW") application has been submitted to the West
Australian Department of Mines and Petroleum seeking approval to commence a
detailed drilling programme at Bullabulling.
The programme's objectives are:
To provide quality assurance information for the extensive existing drill
database of Resolute/Samantha - largely by "twinning" (i.e. drilling alongside)
existing drill holes. This work should give the required confidence for CSA
Global to re-classify much of the existing 2.0Moz gold Inferred Resource into
the Measured & Indicated Resource categories.
To infill drill to expand and complete the known resource base in preparation
for the determination of mineable reserves.
To target selected deeper, potentially high-grade zones, particularly in the
Bacchus North area.
To conduct further metallurgical test work on the primary sulphide
mineralisation.
Most of the holes will be located in the southern 2.5km of the 6km drill
identified mineralisation trend - between the Bacchus South pit and the Phoenix
pit.
Work to be undertaken includes approximately 5,000 metre Quality Assurance
Quality Control ("QAQC") twinning drilling programme to allow the upgrading of
the recent inferred resource estimation completed by consultants CSA Global to
Measured and Indicated Resource categories, a 12,000 metre infill drilling
programme to expand the known resource estimate, and 1,200 metres of diamond
drill core within the primary zone for metallurgical test work.
Drilling is expected to commence in October 2010 with the first results
expected to be reported to shareholders in November 2010. This work programme
signifies the beginning of the feasibility study for the project. A
comprehensive programme and budget for the full feasibility study is being
formulated over the coming weeks and will be announced shortly.
Upon completion of the drilling programme, it is expected that most of the 1.98
million ounces Inferred Resources (JORC) estimated by CSA Global will be
reclassified to Measured and Indicated categories, an important step towards
the planned resumption of production at Bullabulling.
Geological details:
The scoping study of the economics of the project suggests that the project may
be sensitive to grade, recovery and processing costs. In determining the
feasibility of developing the Bullabulling Project it is essential for the
historical database to be re-classified to modern JORC standards. This may
require several stages of twinning historical drillholes depending on results.
CSA Global has also completed a review of the drill spacing by using the
historic grade control data from mining at Bacchus and Phoenix pits. The data
was compiled and geostatistically analysed to confirm the required drill
spacing for Measured and Indicated Resource categories. The recommended drill
spacing are summarised below with the optimal distances between collars in
north-south and east-west orientations stipulated.
Table 1. Recommended drill spacing derived from a geostatistical analysis of
grade control drilling.
Deposit Orientation Measured Category Distance Indicated Category Distance
Bacchus North South 30 to 40m 40 to 100m
East West 20 to 25m 25 to 45m
Phoenix North South 30 to 50m 50 to 70m
East West 20 to 35m 35 to 45m
The recently reported mineral resource was classified as inferred due to a lack
of QAQC data on some of the historic drill holes. To check the historic assay
results, each major historical drilling campaign will be checked by geological
domain, especially weathering profile, with about 1,000-1,500 samples required
from each domain. Two complete fences of drilling across the shear zone have
also been recommended to confirm the continuity of grade, geology and estimate
the pegmatite distribution so it can be compensated for in the model outputs.
The planned QAQC programme will allow areas with high density historic drilling
to be upgraded to indicated and measured categories by twinning historic RC
drill holes. Some of the twinned holes will be extended at depth to intersect
the eastern footwall lodes that are interpreted to dip underneath the historic
pits. The remaining areas will require infill drilling to convert the Inferred
Resources to Measured and Indicated.
The high grade intersections beneath the Bacchus North pit have also been
targeted for infill drilling. Historic results from this area returned some
high grade intersections below the 120 metres depth which, if continuity is
shown to exist, could add significantly to the current resource. The initial
programme should consist of about 4,000 metres, which if successful will be
followed by 6,000 metres of infill drilling to a spacing of 20m by 40m.
Table 2. Historic high-grade intersections under Bacchus Pit.
Hole No Northing Easting Dip From To Intersection
BDC008 11636 8659 -60E 151m 158m 7m @ 77.0 g/t Au
BDD001 11632 8653 -50E 148m 153m 5m @ 14.0 g/t Au
BSC272 11630 8710 -60E 149m 153m 4m @ 5.1 g/t Au
BULRC03 11615 8664 -55E 148m 151m 3m @ 4.4 g/t Au
BULRC04 11615 8660 -70E 155m 158m 3m @ 9.2 g/t Au
BKC0003 12075 8817 -60E 148m 156m 8m @ 23.2 g/t Au
BKC0003 12075 8817 -60E 162m 166m 4m @ 6.0 g/t Au
The number and quality of bulk density measurements are also insufficient for
upgrading the current resource category. Consequently, a number of new bulk
density measurements are required from each weathering domain at different
depths to improve this database, with particular emphasis on primary ore. This
work is also planned at the same time as the drilling using samples from the
recent diamond drilling, open cut pits and the new metallurgical drilling.
Work is continuing on the feasibility review and scoping study that will
provide information on mining costs, treatment costs, cut-off grade and the
scale of the operation to be used in the coming feasibility study. Preliminary
optimisations have now been completed using an A$1,200 gold price, a 3 million
TPA processing rate and assumed costs similar to the Edna May project 150
kilometres to the west in the Southern Cross Belt. This project has very
similar characteristics to the Bullabulling project including processing scale,
geology and grade. The pit shells from these optimisations provided the
required information on where follow up drilling is required.
The drilling and metallurgical test work will start once the programme of works
has been approved by the Department of Mines and Energy. The current Inferred
Resource will be upgraded once the QAQC results have been analysed and a new
resource model estimated to include the new infill drilling results. The new
resource is expected to include mineralisation below the current artificial
Inferred Resource depth cut-off of 120m below surface.
Technical information in the Company's news release has been reviewed and
approved by Dr. Jeffrey F. A. Malaihollo the Company's Managing Director, who
is a Fellow of the Geological Society of London.
For further information, please contact:
Dr. Jeffrey Malaihollo Westhouse Securities Limited
Tel: 01992 531820 Tim Metcalfe / Martin Davison
Email: info@gggresources.com Tel: 020 7601 6100
www.gggresources.com
Gresham PR Alexander David Securities
Limited
Neil Boom
Nick Bealer / David Scott
Tel: 07866 805 108
Tel: 020 7448 9820
END
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