Tetteh Aaron Tettey, Issaka Yakubu, Dodoo Philomena, Atugba Bernice, Tengnibuor Albert
School of Mines and Built Environment, University of Energy and Natural Resources, Sunyani, Ghana.
University of Mines and Technology, Tarkwa, Ghana.
Heliyon. 2025 Feb 21;11(4):e42921. doi: 10.1016/j.heliyon.2025.e42921. eCollection 2025 Feb 28.
As the largest gold producer in Africa, Ghana's spatial distribution of gold-bearing formations is still largely unexamined on a national scale. Previous studies have largely focused on specific mining regions, neglecting a holistic geospatial assessment of gold-bearing rocks across the country. This study employs geospatial techniques to evaluate the relationship between Ghana's geological formations and gold mineralization. The results reveal that gold mineralization is primarily associated with Birimian Volcanics, Birimian Sediments, and Tarkwaian rocks, which are distributed across 12 regions, with the highest concentrations in the Bono (18.74 %), Ashanti (17.93 %), Western (17.53 %), and Western North (11.45 %) regions. The total area occupied by gold-bearing formations is 55,723 km (23.34 %) of Ghana's landmass. Notably, large-scale mining operations such as Newmont Gold Ghana Limited and AngloGold Ashanti predominantly operate within these geological formations, confirming the strong relationship between rock type and gold deposits. This study emphasizes the importance of considering the spatial distribution of gold-bearing formations in land-use planning and future mining investments to optimize resource management and mitigate conflicts between urbanization and mineral exploration.
作为非洲最大的黄金生产国，加纳含金地层的空间分布在全国范围内仍基本未得到研究。以往的研究主要集中在特定的矿区，而忽视了对全国含金岩石进行全面的地理空间评估。本研究采用地理空间技术来评估加纳地质构造与金矿化之间的关系。结果表明，金矿化主要与比里米安火山岩、比里米安沉积物和塔尔夸岩有关，这些岩石分布在12个地区，在博诺（18.74%）、阿散蒂（17.93%）、西部（17.53%）和西北（11.45%）地区浓度最高。含金地层所占总面积为加纳陆地面积的55,723平方公里（23.34%）。值得注意的是，纽蒙特加纳黄金有限公司和安格鲁阿山帝等大型采矿作业主要在这些地质构造内开展，这证实了岩石类型与金矿之间的紧密关系。本研究强调在土地利用规划和未来采矿投资中考虑含金地层空间分布的重要性，以优化资源管理并缓解城市化与矿产勘探之间的冲突。
