Latest drilling results confirm B Shoot
extends to the north and south and remains open in both
directions
TORONTO, Sept. 19, 2017 /CNW/ - Golden Star Resources Ltd.
(NYSE American Exchange: GSS; TSX: GSC; GSE: GSR) ("Golden Star" or
the "Company") is pleased to report the initial results from the
step-out drilling of the high grade B Shoot at its Wassa
Underground Gold Mine ("Wassa Underground") in Ghana.
HIGHLIGHTS:
- Assay results received for 11 out of 15 diamond drill ("DD")
holes testing the B Shoot to the north and for the 1,192 metre step
out hole located 200 metres to the south of last deep drill
fence
- Results confirm that the high grade B Shoot ore body extends
approximately 50 metres to the north of the current planned stoping
area and 200 metres to the south of Wassa Underground's current
Inferred Mineral Resources, suggesting the potential to expand
production in the short term and longer term
- Significant intercepts from the B Shoot North drilling
included:
-
- 14.9 metres ("m") grading 18.9 grams per tonne ("g/t") of gold
("Au") from 294.0m in hole BS17DD002, including:
-
- 2.0m grading 91.8 g/t Au from 300.0m
- 23.8m grading 7.3 g/t Au from 289.9m in hole BS17DD003,
including:
-
- 4.0m grading 21.8 g/t Au from 293.0m
- Significant intercepts from the B Shoot South drilling
included:
-
- 23.8m1 grading 6.1 g/t Au from 1,001.0m in hole
BS17DD385M, including:
-
- 2.0m grading 20.1g/t Au from 1,018.0m
- 21.7m1 grading 5.3 g/t Au from 1049.3m in hole
BS17DD385M
- Further drilling results expected from Wassa Underground during
the second half of 2017, in addition to the results of the
definition and extension drilling at the Prestea Underground Gold
Mine ("Prestea Underground")
Notes
1. The B Shoot South width figures represent
drilled widths rather than true widths, which are stated for the B
Shoot North intersections. The estimation of true width is
not possible for the B Shoot South intersections at this time as
the orientation of the mineralized zone cannot be determined with
one drillhole intersection.
Sam Coetzer, President and
Chief Executive Officer of Golden
Star, commented:
"I am excited to report these initial results from our Wassa
Underground surface drilling program, which confirm that the B
Shoot is significantly larger than previous estimates suggested. It
is the first time we've invested significantly in exploration for
several years, having previously been focused on building our two
underground developments, and I'm very pleased that it is reaping
such encouraging results. The results represent the potential to
increase Wassa Underground's Mineral Resources and Mineral Reserves
and consequently, its gold production in the short term and the
longer term. I look forward to releasing further results during the
rest of the year with the expectation of demonstrating Wassa
Underground's potential to be a high grade gold producer beyond the
current seven year mine life."
Drilling Results
During the second quarter of 2017 Golden
Star commenced a drilling program to test the extent of the B
Shoot zone of the Wassa Underground Gold Mine. Its two focuses were
up plunge to the north of the current planned stoping areas and
down plunge to the south of the current Inferred Mineral
Resources.
B Shoot North
15 holes were drilled, totaling 4,164 metres, to test the B
Shoot zone approximately 200 metres to the north of the last
planned stope. The results to date have confirmed that the
high grade B Shoot mineralization extends approximately 50 metres
to the north, suggesting the potential to add production to Wassa
Underground's mine plan in the near term.
The holes include Hole BS17DD002, which intersected an estimated
true width of 13.9 metres grading 3.3 g/t Au, approximately 30
metres to the north of the last planned B Shoot stope. This
hole also intersected a high grade hanging wall zone of
mineralization, which has an estimated true width of 14.9 metres
and grades 18.9 g/t Au from 294.0 metres, including 2.0 metres
grading 91.8 g/t Au from 300.0 metres. Hole BS17DD003, which
was drilled on an intermediate fence approximately 25 metres
further north of hole BS17DD002, also intersected underground
mineable widths and grades of gold mineralization, including 23.8
metres grading 7.3 g/t Au from 289.9 metres.
B Shoot South
The B Shoot South step out drilling program comprises 7,000
metres in total and includes two mother holes with up to four
directional daughter holes being deflected from each of these.
The first directional mother hole, BS17DD385M, was collared 200
metres to the south of Wassa Underground's current Inferred Mineral
Resources. Its objective was to test the down plunge
projection of the 70.5 metre zone of mineralization grading 5.9 g/t
Au from a depth of 742.4 metres, which was intersected in hole
BSDD315M drilled during the previous deep drilling campaign in
20141.
Results received from this first 2017 hole have confirmed that
the high grade zone extends approximately 180 metres to the south
from the intersection drilled in the 2014 hole (BSDD315M). This
first hole intersected several wide zones of high grade
mineralization, including a drilled width of 23.8 metres grading
6.1 g/t Au from 1,001.0 metres and 21.7 metres grading 5.3 g/t from
1,049.3 metres.
Following the completion of this first mother hole, the first of
four daughter holes has been deflected and completed and the second
daughter hole has been commenced. Results are pending for
both daughter holes.
The full set of drilling results is listed in Appendix A and
includes several compelling intercepts, as set out below. A
long section showing the location of the drill holes is available
at: http://www.gsr.com/operations/wassa/wassa-main/
Significant intercepts from Wassa surface drilling of
underground targets
HOLE
ID
|
Azimuth
(°)
|
Dip
(°)
|
From
(m)
|
To
(m)
|
Drilled
Width
(m)
|
~True
Width
(m)
|
Grade
Au
(g/t)
|
BS17DD001
|
93.7
|
-65.4
|
331.6
|
344.6
|
13.0
|
12.8
|
6.3
|
BS17DD001
|
Including
|
335.6
|
339.6
|
4.0
|
3.9
|
12.9
|
BS17DD002
|
90.8
|
-61.4
|
294.0
|
309.0
|
15.0
|
14.9
|
18.9
|
BS17DD002
|
Including
|
300.0
|
302.0
|
2.0
|
2.0
|
91.8
|
BS17DD003
|
89.7
|
-63.4
|
289.9
|
314.0
|
24.1
|
23.8
|
7.3
|
BS17DD003
|
Including
|
293.0
|
297.0
|
4.0
|
4.0
|
21.8
|
BS17DD006
|
90.3
|
-59.6
|
149.0
|
156.0
|
7.0
|
7.0
|
9.8
|
BS17DD006
|
Including
|
150.0
|
152.0
|
2.0
|
2.0
|
25.8
|
BS17DD009
|
82.8
|
-62.3
|
232.7
|
238.8
|
6.1
|
6.1
|
3.8
|
BS17DD011
|
91.3
|
-59.6
|
82.3
|
91.4
|
9.1
|
9.1
|
6.0
|
BS17DD011
|
Including
|
89.0
|
90.2
|
1.2
|
1.2
|
40.1
|
BS17DD013
|
91.4
|
-48.3
|
183.0
|
189.0
|
6.0
|
6.0
|
9.3
|
BS17DD013
|
Including
|
185.0
|
189.0
|
4.0
|
4.0
|
12.5
|
BS17DD013
|
90.0
|
-48.5
|
258.8
|
277.1
|
18.3
|
18.2
|
3.8
|
BS17DD013
|
Including
|
270.2
|
274.2
|
4.0
|
4.0
|
9.6
|
BS17DD385M
|
88.2
|
-62.2
|
870.5
|
885.0
|
14.5
|
NA
|
3.0
|
BS17DD385M
|
88.3
|
-62.0
|
913.0
|
928.8
|
15.8
|
NA
|
3.9
|
BS17DD385M
|
Including
|
914.0
|
919.0
|
5.0
|
NA
|
8.1
|
BS17DD385M
|
87.1
|
-61.6
|
1001.0
|
1024.8
|
23.8
|
NA
|
6.1
|
BS17DD385M
|
Including
|
1018.0
|
1020.0
|
2.0
|
NA
|
20.2
|
BS17DD385M
|
87.5
|
-61.1
|
1049.3
|
1071.0
|
21.7
|
NA
|
5.3
|
Notes
1. See press release 'Golden Star has Continued Exploration
Drilling Success at Wassa' dated July 30,
2014
Expected Drilling Results
Assay results for four holes in the B Shoot North program are
pending and the results of these holes are expected to be announced
during the fourth quarter of 2017, along with the results for the
second mother hole and the daughter holes in the B Shoot South
drilling. In addition, Golden
Star anticipates to report the results from definition and
extension drilling at Prestea Underground during the third and
fourth quarters of 2017.
APPENDIX A
Assay results received to date from the drilling of Wassa
Underground targets from surface
HOLE
ID
|
Azimuth
(°)
|
Dip
(°)
|
From
(m)
|
To
(m)
|
Drilled
Width
(m)
|
True
Width
(m)
|
Grade
Au (g/t)
|
BS17DD001
|
93.7
|
-65.4
|
331.6
|
344.6
|
13.0
|
12.8
|
6.3
|
BS17DD001
|
Including
|
335.6
|
339.6
|
4.0
|
3.9
|
12.9
|
BS17DD002
|
90.8
|
-61.4
|
294
|
309.0
|
15.0
|
14.9
|
18.9
|
BS17DD002
|
Including
|
300.0
|
302.0
|
2.0
|
2.0
|
91.8
|
BS17DD002
|
90.9
|
-61.5
|
317.0
|
331.0
|
14.0
|
13.9
|
3.3
|
BS17DD003
|
89.7
|
-63.4
|
289.9
|
314.0
|
24.1
|
23.8
|
7.3
|
BS17DD003
|
Including
|
293.0
|
297.0
|
4.0
|
4.0
|
21.8
|
BS17DD004
|
Results
pending
|
BS17DD005A
|
93.1
|
-77.7
|
35.5
|
44.0
|
8.5
|
7.8
|
2.2
|
BS17DD006
|
90.3
|
-59.6
|
149.0
|
156.0
|
7.0
|
7.0
|
9.8
|
BS17DD006
|
Including
|
150.0
|
152.0
|
2.0
|
2.0
|
25.8
|
BS17DD006
|
89.3
|
-61.5
|
320.0
|
322.0
|
2.0
|
2.0
|
11.0
|
BS17DD007
|
94.0
|
-67.0
|
71.0
|
85.0
|
14.0
|
13.7
|
1.0
|
BS17DD008
|
Results
pending
|
BS17DD009
|
85.9
|
-60.4
|
119.0
|
122.0
|
3.0
|
3.0
|
5.1
|
BS17DD009
|
82.8
|
-62.3
|
232.7
|
238.8
|
6.1
|
6.1
|
3.8
|
BS17DD010A
|
91.4
|
-49.0
|
70.4
|
76.4
|
6.0
|
6.0
|
2.4
|
BS17DD011
|
92.0
|
-59.6
|
71.5
|
77.1
|
5.6
|
5.6
|
6.1
|
BS17DD011
|
91.3
|
-59.6
|
82.3
|
91.4
|
9.1
|
9.1
|
6.0
|
BS17DD011
|
Including
|
89.0
|
90.2
|
1.2
|
1.2
|
40.1
|
BS17DD012
|
Results
pending
|
BS17DD013
|
91.1
|
-47.9
|
159.0
|
177.0
|
18.0
|
17.9
|
1.6
|
BS17DD013
|
91.4
|
-48.3
|
183.0
|
189.0
|
6.0
|
6.0
|
9.3
|
BS17DD013
|
Including
|
185.0
|
189.0
|
4.0
|
4.0
|
12.5
|
BS17DD013
|
90.0
|
-48.5
|
258.8
|
277.1
|
18.3
|
18.2
|
3.8
|
BS17DD013
|
90.0
|
-48.5
|
270.2
|
274.2
|
4.0
|
4.0
|
9.6
|
BS17DD014
|
Results
pending
|
BS17DD015
|
89.3
|
-61.3
|
69.2
|
71.0
|
1.8
|
1.8
|
22.5
|
BS17DD015
|
Including
|
69.2
|
70.1
|
0.9
|
0.9
|
42.9
|
BS17DD015
|
89.4
|
-61.6
|
83.0
|
84.0
|
1.0
|
1.0
|
145.4
|
BS17DD385M
|
89.5
|
-62.7
|
422.0
|
425.0
|
3.0
|
NA
|
6.0
|
BS17DD385M
|
88.0
|
-63.3
|
630.0
|
633.0
|
3.0
|
NA
|
6.2
|
BS17DD385M
|
90.8
|
-62.2
|
703.0
|
707.0
|
4.0
|
NA
|
7.5
|
BS17DD385M
|
88.6
|
-62.3
|
802.0
|
808.0
|
6.0
|
NA
|
3.4
|
BS17DD385M
|
87.4
|
-62.2
|
833.0
|
838.0
|
5.0
|
NA
|
4.6
|
BS17DD385M
|
88.2
|
-62.2
|
870.5
|
885.0
|
14.5
|
NA
|
3.0
|
BS17DD385M
|
88.3
|
-62.0
|
913.0
|
928.8
|
15.8
|
NA
|
3.9
|
BS17DD385M
|
Including
|
914.0
|
919.0
|
5.0
|
NA
|
8.1
|
BS17DD385M
|
87.1
|
-61.6
|
1001.0
|
1024.8
|
23.8
|
NA
|
6.1
|
BS17DD385M
|
Including
|
1018.0
|
1020.0
|
2.0
|
NA
|
20.2
|
BS17DD385M
|
87.5
|
-61.1
|
1049.3
|
1071.0
|
21.7
|
NA
|
5.3
|
Company Profile
Golden Star is an established
gold mining company that owns and operates the Wassa and Prestea
mines situated on the prolific Ashanti Gold
Belt in Ghana, West Africa. Listed on the NYSE American
Exchange, the TSX, and the GSE, Golden
Star is strategically focused on increasing operating
margins and cash flow through the development of its two high
grade, low cost underground mines both in conjunction with existing
open pit operations. The Wassa Underground Gold Mine commenced
commercial production in January 2017
and the Prestea Underground Gold Mine is expected to achieve
commercial production in the fourth quarter of 2017. Gold
production in 2017 is expected to be 255,000-280,000 ounces with
cash operating costs of $780-860 per
ounce.
Cautionary note regarding forward-looking information
Some statements contained in this news release are
forward-looking statements within the meaning of the Private
Securities Litigation Reform Act of 1995 and other applicable
securities laws. Such statements include: the ability to increase
Wassa Underground's near term and longer term production; the
ability to increase Wassa Underground's life of mine and Mineral
Resources and Mineral Reserves; the timing of further drilling
results from Wassa Underground; the timing of the drilling results
from Prestea Underground; the true width of mineralization to the
south of the B Shoot and 2017 gold production and cash operating
costs. Investors are cautioned that forward-looking statements are
inherently uncertain and involve risks and uncertainties. Factors
that could cause actual results to differ materially include timing
of and unexpected events during exploration; variations in ore
grade; variations in relative amounts of refractory, non-refractory
and transition ores; technical or permitting issues; fluctuations
in gold price and costs; availability of capital and/or external
financing on acceptable terms; changes in U.S. and Canadian
securities markets; and general economic conditions. There can be
no assurance that future developments affecting the Company will be
those anticipated by management. Please refer to the discussion of
these risks and other factors in the Company's Annual Information
Form for the year ended December 31, 2016 and other
filings of the Company with the United States Securities and
Exchange Commission and the applicable Canadian securities
regulatory authorities. The forecasts contained in this press
release constitute management's current estimates, as of the date
of this press release, with respect to the matters covered thereby.
We expect that these estimates will change as new information is
received. While we may elect to update these estimates at any time,
we do not undertake to update any estimate at any particular time
or in response to any particular event.
Technical Information
The technical contents of this press release have been reviewed
and approved by S. Mitchel Wasel, BSc Geology, a Qualified Person
pursuant to National Instrument 43-101. Mr. Wasel is Vice President
of Exploration for Golden Star and
an active member and Registered Chartered Professional of
the Australasian Institute of Mining and Metallurgy.
The results for Wassa Underground stated herein are based on the
analysis of saw-split HQ/NQ diamond half core or a three kilogram
single stage riffle split of a nominal 25 to 30 kg Reverse
Circulation chip sample which has been sampled over nominal one
meter intervals (adjusted where necessary for mineralized
structures). Sample preparation and analyses have been carried out
at SGS or Intertek Laboratories in Tarkwa, which are
independent from Golden Star, using
a 1,000 gram slurry of sample and tap water which is prepared and
subjected to an accelerated cyanide leach (LEACHWELL). The sample
is then rolled for twelve hours before being allowed to settle. An
aliquot of solution is then taken, gold extracted into Di-iso Butyl
Keytone (DiBK), and determined by flame Atomic Absorption
Spectrophotometry (AAS). Detection Limit is 0.01 ppm.
All analytical work is subject to a systematic and rigorous
Quality Assurance-Quality Control (QA-QC). At least 5% of samples
are certified standards and the accuracy of the analysis is
confirmed to be acceptable from comparison of the recommended and
actual "standards" results. The remaining half core is stored on
site for future inspection and detailed logging, to provide
valuable information on mineralogy, structure, alteration patterns
and the controls on gold mineralization.
SOURCE Golden Star Resources Ltd.