Results at Wassa Include 65.7 Metres at 4.8
g/t Au and 17.9 Metres at 6.5 g/t Au
TORONTO, Nov. 13, 2019 /PRNewswire/ - Golden Star
Resources Ltd. (NYSE American: GSS; TSX: GSC; GSE: GSR) ("Golden
Star" or the "Company") is pleased to announce that it continues to
intersect significant higher grade gold mineralization from infill
and step out surface drilling on the southern extensions of the
Wassa deposit ("Wassa"), demonstrating the continuity and overall
robustness of this world class deposit.
HIGHLIGHTS
- Gold mineralization intersected on section 18,500N, 200 metres
south of the current Inferred Mineral Resource demonstrates Wassa
remains open for more than 1km south of existing underground
infrastructure
- Infill drilling between sections 19,000N and 19,400N confirmed
the continuity and grade of mineralization in this area, and helped
improve the interpretation of the individual shoots
- Significant intercepts from Wassa are as
follows1,2
-
- 65.7 m @ 4.8 g/t Au from
900 m in hole BSDD19-399D
- 19.9 m @ 5.2 g/t Au from
1,248 m in hole BSDD19-399
- 10.1 m @ 10.6 g/t Au from
369 m in hole BSDD19-401
- 17.9 m @ 6.5 g/t Au from
133 m in hole BSDD19-406D
- 11.2 m @ 11.4 g/t Au from
849 m in hole BSDD19-405M
- 14.8 m @ 6.8 g/t Au from
316.5 m in hole BSDD19-295D2
Wassa surface drilling during 2019 has continued to focus on
increasing the size of and confidence in the Inferred Mineral
Resource, and conversion of Inferred Mineral Resource to Indicated
Mineral Resource through infill and step out diamond core drilling.
A total of 22 holes have been completed for 12,636 metres since the
end of Q2 2019, bringing the total drilled in the current year to
approximately 45,000 metres from 59 holes.
The drilling has been successful in converting portions of the
Inferred Mineral Resource to Indicated as well as better defining
the Inferred Mineral Resource at depth and along the hanging wall
and footwall lodes peripheral to the main B-Shoot mineralization.
Infill drilling into the previously interpreted wide zones of gold
mineralization at depth has shown that, instead of a single wide
high-grade mineralized zone, there are four subparallel zones which
have slightly less volume as previous interpretation but a higher
grade, which we anticipate will result in roughly the same metal
content. This new understanding will be incorporated into the
ongoing geological interpretation update that will be the basis for
the year-end Mineral Resource estimation (Figure 2).
WASSA SURFACE DRILLING -
TESTING FUTURE UNDERGROUND TARGETS
Drilling results for 22 new surface diamond drill ("DD") holes
totaling 12,636 metres have been received since the end of Q2 2019,
thereby completing the 2019 budgeted surface drilling
program.
The isometric view shown in Figure 1 highlights a selection of
significant results from holes drilled since Q2 2019, which will
now be used to update the Mineral Resource Estimate for the
year-end statement. Table 1 below, shows the significant assay
results received since the end of Q2 2019.
Figure 1 - Wassa Underground: Isometric view looking east
showing significant results of both step out and extension drilling
programs1,2 (Link to Figure 1 here)
Wassa Underground – Step Out Drilling
Results1
Resource extension drilling to the south of the existing Wassa
resource has continued to target additional resources using 200
metre spaced step out drill fences, with the last holes drilled on
fence 18,500N (Figure 1). The results for BSDD19-400D1,
5.2 m @ 2.2 g/t Au and 8.9 m @ 2.8 g/t, on this fence, have extended the
gold mineralized structure, although at lower grade, approximately
90 metres up-dip of the previously disclosed hole
BSDD19-400M which returned an
intersection of 19.5 m @ 5.4 g/t
Au1. The additional mineralization intersected on
section 18,500N will add to the Inferred Mineral Resource in this
area. The mineralization of Wassa remains open along strike and
down-dip, however mineralization appears to be pinching out in the
up-dip direction on this most southerly drill section.
Wassa Underground - Inferred Mineral Resource Infill
Drilling1
During the last quarter most of the Inferred Mineral Resource
infill drilling focused on Panel 4 (Figure 1). Drilling in this
area has confirmed the continuity of gold mineralization in Panel
4. Drill hole BSDD19-405M,
which was drilled on section 19,050N, confirmed the previous Panel
4 mineralized intersections returning an intersection of
61.9 m @ 4.4 g/t Au, including
several higher grade zones of 11.2 m
@ 11.4 g/t Au and 13.6 m @ 4.8 g/t
Au. This drilling has confirmed the continuity of zones previously
reported on section 19,000N, in hole BSDD19-394D1, which returned
17.6 m @ 34.1 g/t Au and 15.7 m @ 4.1 g/t Au3.
New drilling on section 18,950N, 100 metres to the south of
BSDD19-405M also intersected
significant mineralization in Panel 4. Hole BSDD19-406M intersected 18.1
m @ 3.5 g/t Au, 6.6 m @ 5.0
g/t Au, and 6.9 m @ 5.3 g/t Au.
BSDD19-406D1 on the same section confirmed an extension of the
B-Shoot mineralization approximately 75 metres up-dip of the
existing interpretation, intersecting 17.9
m @ 6.5 g/t Au.
The footwall mineralization where Panel 4 mining is being
planned warrants further drilling to the north and south where the
zone has not been tested thoroughly. The Company is currently
looking at how best to test these extensions, either by surface or
underground drilling.
Additional drilling on section 18,900N (Figure 2) and 18,850N
and 18,800N below Panel 4, has resulted in a preliminary change in
the interpretation from what was modelled previously as a single
moderate dipping thick lode, into a series of subvertical,
subparallel, higher grade interpreted "fold limbs". Whilst these
potential "fold limb" zones are not as wide as the original
interpretation (based on 200 m spaced
drill sections), the zones still have significant widths ranging
from 25 to 70 metres at higher grades than previously intersected.
The interpretation is currently being reviewed and will be used for
the new Mineral Resource Estimate that will be updated in Q1
2020.
Wassa Underground - Inferred to Indicated Mineral Resource
Conversion Drilling1
The Inferred to Indicated Mineral Resource conversion drilling
continued on a 50 x 50 metre pattern and focused on the southern
end of the current Indicated Mineral Resource between sections
19,400N to 19,300N. Results of this drilling should convert
the Inferred Mineral Resource to Indicated with additions of
hanging wall and footwall mineralization, as well as extensions
up-dip and down-dip. Hole BSDD19-295D2, which was a 50 metre infill
hole, intersected 14.8 m @ 6.8 g/t
Au, slightly wider and higher grade than the two holes up-dip and
down-dip on the same section.
Further resource conversion drilling will be completed from
underground drill cuddies, with the existing drill access currently
at 19,400N, and the Company plans to push this to the south as
mining advances. Having underground drill access will significantly
reduce the costs of converting Inferred Mineral Resource to
Indicated Mineral Resource.
Figure 2 - Wassa Underground: Cross section 18875N looking
north showing the change of the interpretation from a single lode
to multiple lodes, based on infill drilling in the deeper extension
areas (Link to Figure 2 here)
Wassa Cross Section 18875N –
(+/- 50 m window)
Significant Intercepts – Wassa Surface Drilling
Results
The full set of drilling results released today is listed in
Appendix A, which is posted to the Company's website or by
following:
http://www.gsr.com/operations/wassa/wassa-main/default.aspx
including the significant intercepts set out below in Table 1.
Table 1
Wassa Surface Drilling –
Significant Results Post Q2 2019
HOLE
ID
|
Azimuth
(°)
|
Dip
(°)
|
From
(m)
|
To
(m)
|
Drilled
Width
(m)
|
~True
Width
(m)
|
Grade
Au
(g/t)
|
Drilling
Objective
|
Target
|
BSDD19-407M
|
89.1
|
-66.4
|
526.0
|
536.0
|
10.0
|
6.2
|
6.8
|
Inf
Definition
|
B Shoot
|
BSDD19-407M
|
87.1
|
-67.4
|
763.0
|
780.0
|
17.0
|
10.4
|
3.1
|
Inf
Definition
|
B Shoot
|
BSDD19-406M
|
84.1
|
-60.6
|
821.0
|
853.0
|
32.0
|
18.1
|
3.5
|
Inf
Definition
|
PAN 4
|
BSDD19-406M
|
83.4
|
-58.2
|
896.0
|
907.0
|
11.0
|
6.6
|
5.0
|
Inf
Definition
|
PAN 4
|
BSDD19-406M
|
83.8
|
-59.8
|
926.0
|
938.0
|
12.0
|
6.9
|
5.3
|
Inf
Definition
|
PAN 4
|
BSDD19-406D1
|
87.3
|
-45.6
|
133.0
|
155.0
|
22.0
|
17.9
|
6.5
|
Inf
Definition
|
B
Shoot
|
BSDD19-405M
|
84.8
|
-61.5
|
849.0
|
867.0
|
18.0
|
11.2
|
11.4
|
Inf
Definition
|
PAN
4
|
BSDD19-405M
|
83.8
|
-61.9
|
873.0
|
881.0
|
8.0
|
4.9
|
8.7
|
Inf
Definition
|
PAN 4
|
BSDD19-405M
|
83.2
|
-61.9
|
898.0
|
920.0
|
22.0
|
13.6
|
4.8
|
Inf
Definition
|
PAN 4
|
BSDD19-405D1
|
85.2
|
-47.1
|
389.0
|
400.0
|
11.0
|
9.3
|
5.8
|
Inf
Definition
|
PAN 4
|
BSDD19-405D1
|
88.6
|
-46.9
|
493.0
|
503.0
|
10.0
|
8.5
|
5.2
|
Inf
Definition
|
PAN 4
|
BSDD19-403M
|
88.5
|
-60.3
|
805.3
|
821.3
|
16.0
|
9.8
|
5.0
|
Inf
Conversion
|
B Shoot
|
BSDD19-403M
|
86.6
|
-60.4
|
890.4
|
904.4
|
14.0
|
8.5
|
4.8
|
Inf
Conversion
|
B Shoot
|
BSDD19-402M
|
83.7
|
-58.1
|
936.5
|
947.6
|
11.1
|
7.1
|
4.7
|
Inf
Conversion
|
B Shoot
|
BSDD19-401M
|
88.3
|
-64
|
402.0
|
412.0
|
10.0
|
6.2
|
5.2
|
Inf
Conversion
|
B Shoot
|
BSDD19-401D2
|
85.1
|
-70.7
|
172.8
|
191.8
|
19.0
|
9.9
|
5.7
|
Inf
Conversion
|
B Shoot
|
BSDD19-401D2
|
82
|
-74
|
369.0
|
390.6
|
21.6
|
10.1
|
10.6
|
Inf
Conversion
|
B
Shoot
|
BSDD19-399M
|
67.7
|
-61.8
|
1248.0
|
1283.4
|
35.4
|
19.9
|
5.2
|
Inf
Expansion
|
WUG deeps
|
BSDD19-399M
|
63.3
|
-56.6
|
1450.0
|
1469.5
|
19.5
|
12.4
|
3.7
|
Inf
Expansion
|
WUG deeps
|
BSDD19-399M
|
63
|
-55.7
|
1485.5
|
1504.0
|
18.5
|
12.0
|
5.7
|
Inf
Expansion
|
WUG deeps
|
BSDD19-399D2
|
67.6
|
-66.5
|
501.8
|
515.8
|
14.0
|
9.3
|
5.4
|
Inf
Expansion
|
WUG deeps
|
BSDD19-399D2
|
67.1
|
-65.2
|
668.4
|
685.0
|
16.6
|
11.3
|
6.3
|
Inf
Expansion
|
WUG deeps
|
BSDD19-399D2
|
65.5
|
-62.4
|
900.0
|
992.0
|
92.0
|
65.7
|
4.8
|
Inf
Expansion
|
WUG
deeps
|
BSDD19-399D1
|
79.7
|
-55.3
|
480.5
|
491.0
|
10.5
|
6.8
|
6.2
|
Inf
Expansion
|
WUG deeps
|
BSDD19-399D1
|
77.7
|
-53.3
|
585.6
|
601.8
|
16.2
|
11.0
|
3.5
|
Inf
Expansion
|
WUG deeps
|
BSDD19-399D1
|
74.3
|
-52.8
|
690.3
|
705.0
|
14.7
|
10.1
|
3.6
|
Inf
Expansion
|
WUG deeps
|
BSDD19-399D1
|
70.8
|
-54.9
|
852.7
|
860.8
|
8.1
|
5.3
|
11.7
|
Inf
Expansion
|
WUG
deeps
|
BSDD19-399D1
|
70.5
|
-54.9
|
888.6
|
904.0
|
15.4
|
10.1
|
11.5
|
Inf
Expansion
|
WUG
deeps
|
BSDD19-399D1
|
70.3
|
-53.9
|
922.5
|
935.5
|
13.0
|
8.7
|
3.5
|
Inf
Expansion
|
WUG deeps
|
BSDD19-397M
|
76.6
|
-72.9
|
666.0
|
683.0
|
17.0
|
13.2
|
6.8
|
Inf
Conversion
|
B
Shoot
|
BSDD19-397M
|
80.3
|
-80.2
|
785.4
|
809.2
|
23.8
|
16.5
|
3.1
|
Inf
Conversion
|
B Shoot
|
BSDD19-397M
|
69
|
-79.8
|
963.0
|
980.6
|
17.6
|
6.1
|
9.3
|
Inf
Conversion
|
B Shoot
|
BSDD19-397D1
|
85.6
|
-64.1
|
339.0
|
347.8
|
8.8
|
7.5
|
5.7
|
Inf
Conversion
|
B Shoot
|
BSDD19-397D1
|
82.11
|
-64.4
|
358.6
|
362.8
|
4.2
|
3.6
|
17.8
|
Inf
Conversion
|
B Shoot
|
BSDD19-394D5
|
86.6
|
-47.1
|
185.0
|
199.0
|
14.0
|
11.5
|
7.5
|
Inf
Conversion
|
B Shoot
|
BSDD19-394D5
|
86.5
|
-47.6
|
260.0
|
280.0
|
20.0
|
16.3
|
3.4
|
Inf
Conversion
|
B Shoot
|
BSDD19-394D4
|
93.1
|
-51.4
|
206.0
|
213.0
|
7.0
|
4.8
|
6.8
|
Inf
Conversion
|
B Shoot
|
BSDD19-394D4
|
87.1
|
-53.9
|
351.0
|
364.5
|
13.5
|
8.9
|
9.7
|
Inf
Conversion
|
B
Shoot
|
BSDD19-394D3
|
84.2
|
-80.6
|
632.0
|
655.5
|
23.5
|
13.3
|
3.5
|
Inf
Expansion
|
B Shoot
|
BSDD19-388D4
|
67
|
-81.7
|
683.4
|
693.3
|
9.9
|
7.6
|
5.5
|
Inf
Expansion
|
B Shoot
|
BSDD19-295D2
|
82.2
|
-74.4
|
316.5
|
345.5
|
29.0
|
14.8
|
6.8
|
Inf
Conversion
|
B Shoot
|
Notes
|
|
1.
|
All widths quoted in
this press release are estimated true widths.
|
2.
|
Depths of holes
annotated with "D" (daughter hole) are from wedge.
|
3.
|
See press release
entitled, 'Golden Star Announces Drilling Results at its Wassa and
Father Brown Deposits Including the Extension of Gold
Mineralization at Both Locations', dated July 15, 2019.
|
All monetary amounts refer to United States dollars
unless otherwise indicated.
Company Profile:
Golden Star is an established
gold mining company that owns and operates the Wassa and Prestea
underground mines in Ghana,
West Africa. Listed on the NYSE
American, the Toronto Stock Exchange and the Ghana Stock Exchange,
Golden Star is focused on delivering
strong margins and free cash flow from its two high-grade, low cost
underground mines. Gold production guidance for 2019 is 190,000 -
205,000 ounces at a cash operating cost per ounce of $800-$850. As the
winner of the PDAC 2018 Environmental and Social Responsibility
Award, Golden Star is committed to
leaving a positive and sustainable legacy in its areas of
operation.
Statements 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 "forward looking
information" within the meaning of Canadian securities laws include
but are not limited to, statements and information regarding: the
geological interpretation update that will be the basis for the
year-end Mineral Resource estimation; the significant results
from holes drilled since Q2 2019 that will be used to update the
Mineral Resource Estimate for the year-end statement; additions to
the Inferred Mineral Resources; further resource conversion
drilling being completed and plans to push this to the south as
mining advances; the reduction of costs of converting Inferred
Mineral Resource to Indicated Mineral Resource; gold production of
between 190,000 - 205,000 ounces in 2019; and cash operating cost
per ounce of $800-$850 for 2019. Generally, forward-looking
information and statements can be identified by the use of
forward-looking terminology such as "plans", "expects", "is
expected", "budget", "scheduled", "estimates", "forecasts",
"intends", "anticipates", "believes" or variations of such words
and phrases (including negative or grammatical variations) or
statements that certain actions, events or results "may", "could",
"would", "might" or "will be taken", "occur" or "be achieved" or
the negative connotation thereof. Investors are cautioned that
forward-looking statements and information are inherently uncertain
and involve risks, assumptions and uncertainties that could cause
actual facts to differ materially. Such statements and information
are based on numerous assumptions regarding present and future
business strategies and the environment in which Golden Star will operate in the future,
including the price of gold, anticipated costs and ability to
achieve goals. Forward-looking information and statements are
subject to known and unknown risks, uncertainties and other
important factors that may cause the actual results, performance or
achievements of Golden Star to be
materially different from those expressed or implied by such
forward-looking information and statements, including but not
limited to: risks related to international operations, including
economic and political instability in foreign jurisdictions in
which Golden Star operates; risks
related to current global financial conditions; risks related to
joint venture operations; actual results of current exploration
activities; environmental risks; future prices of gold; possible
variations in Mineral Reserves, grade or recovery rates; mine
development and operating risks; accidents, labor disputes and
other risks of the mining industry; delays in obtaining
governmental approvals or financing or in the completion of
development or construction activities and risks related to
indebtedness and the service of such indebtedness. Although
Golden Star has attempted to identify important factors that could
cause actual results to differ materially from those contained in
forward-looking information and statements, there may be other
factors that cause results not to be as anticipated, estimated or
intended. There can be no assurance that future developments
affecting the Company will be those anticipated by management.
Please refer to the discussion of these and other factors in
Management's Discussion and Analysis of financial conditions and
results of operations for the year ended December 31, 2018 and in our annual information
form for the year ended December 31,
2018 as filed on SEDAR at www.sedar.com. 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 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 drilling 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
metre intervals (adjusted where necessary for mineralized
structures). Sample preparation and analyses have been carried out
at 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.
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SOURCE Golden Star Resources Ltd.