Wirtschaftsnachrichten (Symbolbild)
Mittwoch, 14.02.2018 13:00 von | Aufrufe: 89

Golden Star reports further high grade drilling results from Wassa Underground

Wirtschaftsnachrichten (Symbolbild) ©unsplash.com

PR Newswire

Intercepts include 94.0m1,2 grading 4.4 g/t Au from 1,305.7m

TORONTO, Feb. 14, 2018 /PRNewswire/ - Golden Star Resources Ltd. (NYSE American Exchange: GSS; TSX: GSC; GSE: GSR) ("Golden Star" or the "Company") is pleased to report  further results from the step-out drilling of the high grade Wassa Underground Gold Mine ("Wassa Underground") in Ghana. 

HIGHLIGHTS2:

B Shoot and F Shoot South

  • Assay results received for four 'daughter' diamond drill ("DD") holes on the previously announced 'mother' hole targeting the Wassa Underground ore body at depth
  • Latest results confirm that the F Shoot, in addition to the high grade B Shoot zone, extends 180 metres ("m") to the south of Wassa Underground's Inferred Mineral Resources (600m to the south of the current Mineral Reserves)
  • These results have also intersected the thickest zone of gold mineralization at Wassa received to date:
    • 94.0m grading 4.4 grams per tonne ("g/t") of gold ("Au") from 1,305.7m in hole BS17DD385D3, including:
      • 18.4m grading 8.3 g/t Au from 1,305.7m
      • 29.8m grading 4.5 g/t Au from 1,353.0m
  • Further drilling results from the B Shoot South and F Shoot South (from surface) expected in the second quarter of 2018

B Shoot North

  • Assay results received from two DD holes drilled from underground testing the northern extension of the B Shoot
  • Significant intercepts include:
    • 27.1m grading 8.7 g/t Au from 209.9m in hole BS17-720-29, including:
      • 8.3 m grading 22.2 g/t Au from 231m
    • 11.4 m grading 7.3 g/t Au from 219 m in hole BS17-745-17
  • These results suggest the potential to add stopes into Wassa Underground's near term mine plan

242 FW

  • Assay results received for three DD holes testing a new underground target in the footwall of the 242 trend, which is known as 242 FW
  • Significant intercepts include:
    • 6.8m grading 8.2 g/t Au from 488.0m in hole 242DD17006
  • If further drilling of 242 FW is successful, it has the potential to supply additional underground ore to the Wassa processing plant and increase production

Notes


ARIVA.DE Börsen-Geflüster

Kurse

1. This number represents an estimated true width.  The drilled width intersected was 211.3m.

2. All widths quoted in this press release are estimated true widths.  The full set of intercepts, including the drilled widths, are included in Appendix A.

 

Sam Coetzer, President and Chief Executive Officer of Golden Star, commented:

"These exciting intercepts from the B Shoot South and F Shoot South continue to support our belief that Wassa has substantial potential at depth.  They provide further confirmation that the ore body extends approximately 600m to the south of the current Mineral Reserves and remains open.  Importantly, they also suggest that it may widen at depth.  We believe that Wassa is significantly larger than the current Mineral Resource estimate suggests and during 2018 we will continue to test its extensions through further drilling.  Wassa Underground is a central part of our exploration strategy in 2018 and I look forward to releasing further information about our other exploration targets during this quarter."

DRILLING RESULTS

Plan view of Wassa Underground drilling targets (CNW Group/Golden Star Resources Ltd.)

During the second half of 2017 Golden Star's exploration program continued to test the extent of the B Shoot and F Shoot zone of Wassa Underground from surface.  Its three focuses were down plunge to the south of the Inferred Mineral Resources, up plunge of the planned stoping areas and into the 242 trend, which has previously been mined from surface.

During the course of drilling to the south, the exploration team identified that they had intersected the F Shoot, as well as the B Shoot.  The F Shoot was mined for nine months at the start of Wassa Underground's mine life before the decline reached the B Shoot ore body.  Golden Star also intersected a new horizon of mineralization in the footwall of the 242 trend, which has been named 242 FW.

B Shoot South and F Shoot South

East looking isometric view of the Wassa Underground ore body (CNW Group/Golden Star Resources Ltd.)

The 2017 B Shoot South step out drilling program comprised 6,818m in total and included one 'mother' hole with four directional 'daughter' holes, wedged and drilled at an angle from the mother hole. 

The mother hole, BS17DD385M, was collared 180m to the south of Wassa Underground's current Inferred Mineral Resources.  Its objective was to test the down plunge projection of the 70.5m1 zone of mineralization grading 5.9 g/t Au from a depth of 742.4m, which was intersected in hole BSDD315M drilled during the previous deep drilling campaign in 20142.  The results of this hole were reported on September 19, 2017 and they confirmed that the high grade zone extended 180m to the south of Wassa's Inferred Mineral Resources3.

The results from the four daughter holes provide further confirmation of the extension of the ore body, although the zones are believed to be related to the F Shoot trend, rather than the B Shoot, due to the nature of the folding.  The daughter holes were wedged and drilled at angles both above and below the mother hole, testing the zone over approximately 400m of dip extension.  The thickest zone of gold mineralization drilled to date at Wassa was reported from the third daughter hole: 94.0m1 averaging 4.4 g/t Au from 1,305.7m.  These results confirm the B Shoot and F Shoot's extensions to the south and further drilling is expected in 2018.

In addition to these directional holes, four holes tested the F Shoot Inferred Mineral Resource  up plunge, north towards the existing Mineral Reserve (on sections 19100, 19300 and 19500), including two new holes and two existing holes, which were re-entered and deepened.  

B Shoot North

In the second half of 2017, two DD holes (612m) were drilled from within the existing workings of Wassa Underground to confirm the high grade results drilled from surface earlier in 2017.  These holes tested the B Shoot zone approximately 50m to the north of the last planned stopes on 695 Level, following up on the significant intercept reported in surface hole BS17DD003 of 23.8m1 grading 7.3 g/t Au from 289.9m, which was announced on September 19, 2017.2  

The first of the new holes (BS17-720-29), which was drilled across the top of the interpreted zone, confirmed the grades and thicknesses intersected in the earlier hole, including 27.1m1 grading 8.7 g/t Au from 209.9m. The second new hole, (BS17-745-17), drilled approximately 20m up dip of the first new hole, also reported a significant intercept: 11.4m1 grading 7.3 g/t Au from 219.0m.  This confirmed the continuity of the gold mineralization 50m to the north of the planned stoping area.

Further drilling is planned in 2018 with the aim of delineating additional stopes to the north of the current underground workings, pending positive economics.  Results for several of the other 2017 surface holes were also received during the fourth quarter of 2017 and they are summarized in Appendix A.

242 FW

The 242 zone is located in the flatter dipping western limb of the Wassa deposit scale fold.  The 242 FW underground target was discovered in 2017 and it is the first time that Golden Star has investigated the potential of the foot wall horizon.

Three holes were drilled into the footwall approximately 300m below the area that the Company had mined previously.  The northernmost hole (hole 24217DD006) returned an intercept of 6.8m1 grading 8.2 g/t Au from 488.0m and as a result, further drilling has been included in the 2018 exploration budget.  This drilling is expected to commence in the second half of 2018.

 

Notes

1.

All widths quoted in this press release are estimated true widths.  The full set of intercepts, including the drilled widths, are included in Appendix A.

2.

See press release 'Golden Star has Continued Exploration Drilling Success at Wassa', dated July 30, 2014

3.

See press release 'Golden Star Extends High Grade B Shoot Zone Through Step Out Drilling at Wassa Underground Gold Mine', dated September 19, 2017

 

Significant Intercepts

The full set of drilling results is listed in Appendix A and includes several compelling intercepts, as set out below.  Further drill sections showing the location of the drill holes are available at: http://www.gsr.com/operations/wassa/wassa-main   

Significant intercepts from drilling of Wassa Underground (from surface)

HOLE ID

Azimuth (°)

Dip (°)

From (m)

To

(m)

Drilled Width (m)

~True Width (m)

Grade Au (g/t)

B Shoot South and F Shoot South

BS17DD385D1

80.6

-53.3

872.0

904.0

32.0

26.7

3.2

BS17DD385D2

51.8

-66.5

1137.0

1142.0

5.0

4.3

25.9

BS17DD385D2

44.1

-60.7

1270.0

1278.2

8.2

7.4

5.7

BS17DD385D3

72.1

-79.9

942.0

961.6

19.6

15.0

3.6

BS17DD385D3

51.7

-73.6

1305.7

1517.0

211.3

94.0

4.4

BS17DD385D3

Including

1305.7

1319.7

14.0

6.2

18.1

Werbung

Mehr Nachrichten zur Golden Star Resources Aktie kostenlos abonnieren

E-Mail-Adresse
Benachrichtigungen von ARIVA.DE
(Mit der Bestellung akzeptierst du die Datenschutzhinweise)

Hinweis: ARIVA.DE veröffentlicht in dieser Rubrik Analysen, Kolumnen und Nachrichten aus verschiedenen Quellen. Die ARIVA.DE AG ist nicht verantwortlich für Inhalte, die erkennbar von Dritten in den „News“-Bereich dieser Webseite eingestellt worden sind, und macht sich diese nicht zu Eigen. Diese Inhalte sind insbesondere durch eine entsprechende „von“-Kennzeichnung unterhalb der Artikelüberschrift und/oder durch den Link „Um den vollständigen Artikel zu lesen, klicken Sie bitte hier.“ erkennbar; verantwortlich für diese Inhalte ist allein der genannte Dritte.


Andere Nutzer interessierten sich auch für folgende News