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West Africa Region

Tarkwa has now fully transitioned to contractor mining and is well positioned to deliver sustained value, while the best long-term option for Damang to create future cash-flow is being realised through the implementation of the Damang Reinvestment project.

A joint venture with Asanko Gold was completed in July 2018, with Gold Fields acquiring 45% in the mine for approximately US$185M.

West Africa region
WEST AFRICA REGION SALIENT POINTS
Mineral Resources       Mineral Reserves
16.0Moz*#       7.4Moz*#
* 90% attributable to Gold Fields
# Excludes Asanko gold mine
       
WEST AFRICA REGION SALIENT POINTS
OPERATIONAL PROFILE
   
Damang
 
Tarkwa
 
Asanko JV
Mining method   Open pit   Open pit   Open pit
Infrastructure   Two open pits and one Carbon in Leach (CIL) gold plant with a current capacity of 4.3Mtpa   Four open pits and one CIL gold plant with a current capacity of 13.5Mtpa   Three open pits and one CIL gold plant with current capacity of 5.4Mtpa
Mineralisation style   Hydrothermal (orogenic) and palaeoplacer   Palaeoplacer   Hydrothermal shear hosted
Mineralisation characteristics  
  • Hydrothermal mineralisation hosted within structural shears and fault zones
  • Confined to well-defined prospective structural belts
  • Mineralisation within pods with short-range predictability
  • Exploration and resource definition programmes required to further define controls on mineralisation and continuity
  • Palaeoplacer characteristics are the same as for Tarkwa
 
  • Mineralisation hosted within sedimentary conglomerates of the Tarkwaian Group
  • Laterally continuous with mid- to long-range predictability
  • Clear patterns of mineralisation governed by sedimentary characteristics
  • Exploration programmes ongoing to test near-mine palaeoplacer potential
 
  • Deposits are typically hydrothermal shear hosted in style and situated within the Kumasi basin within the Asankrangwa Gold Belt
  • Mineralisation is structurally hosted along several regional NE trending shears and within sandstone, siltstone and shale sedimentary packages
  • Most deposits have intrusive tonalitic-porphyritic granite dyke associations
  • Exploration programmes are ongoing to identify strike and depth extensions to existing ore bodies, and to profile new opportunities along these well-defined structural pathways

For more information on the operations/projects, view the online 2018 Mineral Reserves and Resources Report