Mining and Metallurgic History of the Obuasi Mine Gold has been mined in the Obuasi area for over a century The gold was discovered and worked mechanically from alluvium and friable quartz of reefs long before the arrival of Europeans in 1895 Kumi 1998 Early mining was the quartz vein crops on the surface which were later accessed by
Gold mining and processing in the Ashanti pre dates the colonisation of Ghana At its peak in the mid 90s the mine produced approximately 1Moz/a but due to legacy issues such as ageing infrastructure production was on a downward trend In 2014 mining activities ceased and the mine was placed on care and maintenance
There are two broad styles of gold mineralisation including free milling quartz vein gold and sulphiderich disseminated and refractory gold which form alteration haloes around the quartz vein lodes Sulphide mineralisation is dominated by arsenopyrite and quartz mineralisation which is associated with spatially variable but exceptionally
Obuasi gold mine redevelopment Ghana update 13th August 2021 By Sheila Barradas Creamer Media Research Coordinator & Senior Deputy Editor Font size
Objective This study investigated respiratory disorders among gold miners in Ghana a sub Saharan African country Material and Methods A cross sectional exploratory design that employed quantitative methods was conducted among 1001 male workers from the Obuasi and Tarkwa mines from December 2015 to April 2016 A total of 1001 workers
AngloGold Ashanti receives environmental permits for Obuasi Gold mine redevelopment AngloGold Ashanti announced early last year it would invest $495m to $545m to recapitalise the iconic mine in Ghana to develop its six million ounces of high grade reserve The project will see Obuasi transformed into a modern mechanised mine that will
Ghana Gold majors Randgold Resources and AngloGold Ashanti are replicating the solid relationship established at the Kibali project in the DRC as they look to jointly redevelop and operate the Anglogold Ashanti Obuasi mine The two companies have concluded an investment agreement aimed at the formation of a joint venture for Obuasi s redevelopment
Australia based mining services company Perenti has secured contract extensions worth A$420m $ for three different underground gold mines Awarded to Perenti s underground mining businesses the contract extensions are for the Gold Fields Agnew AngloGold Ashanti s Obuasi and Roxgold s Yaramoko underground gold mines
Other articles where Asante gold mine is discussed Obuasi The Asante gold mine at Obuasi remained the country s major producer while others became depleted It is one of the world s richest gold mines in terms of yield per ton of ore By the end of the 20th century it was the 10th largest gold mine…
Gold production at the mine rose 29% for the six months ended 30 June 2023 to 117 000 ounces compared with 91 000 ounces in the corresponding period last year Significantly total cash costs also
Latest Developments AngloGold Ashanti achieved its first gold pour at the Obuasi mine in December 2019 five years after mining activities were suspended in 2014
AngloGold Ashanti Gold Mining Limited AAGL Obuasi has contributed immensely to Ghana s economic development for centuries [8] Though Obuasi township is universally associated with
Obuasi Africa Obuasi is located in the Ashanti region of Ghana approximately 60km south of Kumasi Mining operations are primarily underground to a depth of 1 500m On receipt of the requisite approvals from the Government of Ghana the Obuasi redevelopment project began in early 2019 This followed the mine s having been place on care and
AngloGold Ashanti Ghana has confirmed the first pour of gold from its Obuasi mine hinting the restart of operations after they were suspended five years ago The underground Obuasi gold mine operation is in the Ashanti region which is approximately 60km south of
Gold mining and processing in the Ashanti pre dates the colonisation of Ghana At its peak in the mid 90s the mine produced approximately 1Moz/a but due to legacy issues such as ageing infrastructure production was on a downward trend In 2014 mining activities ceased and the mine was placed on care and maintenance
Obuasi is on the cusp of a transformative era Fueled by a significant investment of over million from AngloGold Ashanti AGA as part of its 10 years Socioeconomic Development Plan the Obuasi Mine a major gold producer is embarking on a series of community development projects this year designed to improve infrastructure social services …
Mining operations in the Obuasi mine of AngloGold Ashanti Limited began in 1897 using mainly gravity concentration and amalgamation to recover the gold from predominantly high grade quartz ores The mine is primarily an underground operation although some surface mining still takes place Ore is currently processed by two main treatment plants the Sulfide
"The Obuasi Mine of AngloGold Ashanti Limited has been operating the world s largest Biooxidation Plant at its Sulfide Treatment Plant STP in Ghana using the Gencor Biox® technology since February 1994 The Biox® technology was preferred to other alternative methods of treating refractory sulfide ores such as roasting pressure oxidation and nitric acid
Obuasi about 200 kilometres northwest of Accra Ghana s capital is home to one of the richest gold mines in the whole world For more than a hundred years the precious metal mined there has been taken to jewellers in the West and beyond earning millions of dollars for mining companies and their shareholders wrote journalist Efan Dovi Africa Renewal magazine
The Wall Street Journal "In Ghana AngloGold Ashanti Ltd the world s No 3 gold producer closed shafts at its Obuasi mine in late 2014 as the mine hemorrhaged cash amid sinking metals prices Early this year hundreds of men broke through the 13 mile fence around Obuasi and started prospected for gold there on their own " Click to view
Obuasi s redevelopment the five year mining contract was awarded to a joint venture Underground Mining Alliance Limited UMA formed by Ghana s Rocksure International Rocksure 30% and Australia s African Underground Mining Services AUMS 70% which will also help facilitate the transfer of underground mining expertise to Accra based
Gold mining in and around Obuasi dates back to the nineteenth century Deep mining has been the main practice to date AngloGold Ashanti mine one of the largest gold Au mines in sub Saharan Africa located within Obuasi alone contributes more than 50 % of the total annual gold production in the country AngloGold 2006
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