Mine detail: Ashanti

Previously called 'Obuasi'

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Location: Ashanti, Ghana, Africa
Lat / long: 6.23446, -1.64856
dep_id: 10081075
mrds_id: W032774
Commodity type: metallic
Major mineral: Gold
Minor mineral: Silver
Operation type: Unknown
Production size: Medium ammount of material produced
Development status: Producer
ore: Galena, Gold, Pyrite, Pyrrhotite
gangue: Albite, Ankerite, Graphite, Quartz, Sericite
orebody_fm: LENSES
ore_ctrl: Contacts Of Lower And Upper Birimian Rocks
Reporter: Gassaway, Judith S., Orris, Greta J.
hrock_unit: Birrimian Formation
hrock_type: Schist
arock_type: Mafic Intrusive Rock
Structure: Shear Runs Along Strike North To Northeast, Sub Vertical
Year first produced: 1893
References:
  • Deposit:: DEKUN, NICOLAS, 1965, MINERAL RESOURCES OF AFRICA: ELSEVIER PUB. CO., AMSTERDAM, 740 P.
  • Deposit:: MM 1980; E/MJ 1978; WAR MINERALS REPORT 1976-1977
  • Deposit:: MINING MAGAZINE, JANUARY, 1987, P. 75.
  • Deposit:: BOYLE, R.W., 1979, THE GEOCHEMISTRY OF GOLD AND ITS DEPOSITS (TOGETHER WITH A CHAPTER ON GEOCHEMICAL PROSPECTING FOR THE ELEMENT): GEOLOGICAL SURVEY OF CANADA BULLETIN 280, 584 P.
  • Deposit:: KESSE, G.O., 1984, THE OCCURRENCE OF GOLD IN GHANA, IN FOSTER, R.P., ED., GOLD*2: THE GEOLOGY, GEOCHEMISTRY AND GENESIS OF GOLD DEPOSITS: GEOLOGICAL SURVEY OF ZIMBABWE SPECIAL PUBLICATION 1, P. 645-660.
  • Reserve-Resource:: MINING MAGAZINE, 1987
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