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NORDGOLD TAPARKO DEPOSIT

 

 

 

TAPARKO DEPOSIT

 

Project Location and Access

The Taparko-Bouroum gold project is located in the Namantenga Province, Burkina Faso in West Africa, approximately 200 kilometres northeast of Ouagadougou, the Capital City of Burkina Faso. The Taparko project is accessible via a paved road from Ouagadougou. The project comprises two separate sites. The Bouroum site is located approximately 49 kilometers northwest of the main Taparko site where all the mining and milling infrastructures are located. It is accessible from Taparko via gravel road.


Project History

© The original discovery at Taparko was made in 1980 by the Burkina Faso Government department of geology and mining.

© Minorex, continued exploration from 1987.

© Incanore Gold Mines and HRG entered into a joint venture agreement for the Taparko property in August 1993.

© A Mining Investment Convention was successfully negotiated and initialed in January 1994 and approved /effective February 19, 1996.

© In August 2004, with the granting of the exploitation permit for Taparko, HRG increased its interest to 90 percent in the project.

© The first gold pour at the Taparko-Bouroum Mine on July 17, 2007 and this start-up of the Taparko-Bouroum Gold Mine marked the revival of a modern gold mining industry in Burkina Faso.

© In 2008 Nordgold acquired the mine as one of HRG’s assets.

Geology

The Taparko/Bouroum area lies within the early Proterozoic Birimian greenstone Belts of the West African Craton. The area was deformed repeatedly but has formed a stable craton since. Ongoing tectonic movements led to the development of shear zones of regional importance that were the setting for many of the major West African gold deposits. The Taparko and Bouroum deposits were formed during this tectonic episode.

The two gold deposits are hosted on opposite limbs of the Y-shaped Bouroum-Yalogo greenstone belt and are hosted by volcano-sedimentary rocks such as amphibolitic schists, mafic lavas, pyroclastics, and argillaceous sediments all of which have been intruded by large bodies of diorite or quartz-diorite, and by diabase dikes.  The lavas are tholeiitic in the Bouroum area.

DEPOSIT TYPES

The gold mineralization found at Taparko / Bouroum have been characterized as formed in a classic mesothermal setting during the later stages of orogenic events, with a strong structural control.

MINERALISATION

Gold at Taparko occurs predominantly in the northwest trending Taparko shear zone that is focussed on a thin band of metasediments and metavolcanic rocks enclosed by granodiorite. The shear zone has been identified for a distance of more than 10 kilometres and dips from 45° E to NE.

The Taparko and Bouroum gold deposits have same type of mineralization characterized by sulphide-poor quartz veins hosted by shear zones of various attitudes.

Economically important accumulations at Taparko are restricted to a number of discrete zones known as the Zone 3/5 (1.1 kilometres long) Zone 2N/2K (500 metres long) and Zone GT (400 metres long).

Gold at Bouroum occurs in small, structurally complex deposits of which the Bissinga, F-12 and Welcome Stranger Zones have economically exploitable amount of gold.

Mineral Resource and Mineral Reserve

Resource and reserve estimates are based on SRK Report dated April, 2013 (data as at 1 January, 2013). The Ore reserves were estimated using a gold price of US$1,250/oz.  (source company web site / press releases).

 Taparko Resource and Reserve Estimates as at 1st January 2013

Category

Ore (Kt)

Grade (g/t)

Au (Koz)

RESERVES
Proven

399

2.44

31

Probable

8,269

2.53

671

Proven+Probable

8,668

2.52

703

RESOURCES
Measured

-

-

-

Indicated

16,303

2.17

1,139

Measured+Indicated

16,303

2.17

1,139

Inferred

8,699

1.51

421

Total resources

1560

 

www.nordgold.com

NB: Most of the figures are modified from company public data

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