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GABON: Afrika'nın Yeraltı Krallığına Yolculuk

(Bu yazı Madencilik ve Sonrası Dergisi'nin 1. Sayısında yayınlanmıştır.)


In Central Africa, Gabon, located on the Atlantic coast, gives the impression of a natural paradise at first glance with its lush tropical forests and rich biodiversity. However, it would be a disservice to confine this country solely to the beauty seen on its surface; for the true treasure is hidden beneath its equatorial vegetation. Strategic minerals such as manganese, iron, uranium, gold, and rare earth elements have earned Gabon the title of “Underground Kingdom.” In this article, we will trace the path of these underground riches in a tropical travel atmosphere, savoring a journey that stretches from forest roads to vast mining sites.

 



Although Gabon's official language is French, various languages are heard in rural areas; its cultural diversity walks hand in hand with its natural riches. As you traverse the mountain roads amid the rainforests, you can feel the geological history hidden within the layers of dense vegetation. Although the tropical climate, high rainfall, and humidity rapidly cause soil weathering, this also has a significant impact on the enrichment of certain minerals near the surface. In every vein discovered in this region, there lies a silent testimony to geological events spanning from the past to the present.

 


Unique Geological Fabric

 

Gabon’s geological character is shaped by ancient rocks dating back to the Archean and Proterozoic periods. Situated on the fringes of the Congo Craton, the country took its present form through millions of years of tectonic activity and sedimentary processes. Notably, Proterozoic-aged metamorphic rocks, sediments, and magmatic rocks are scattered throughout much of the country. Equatorial climatic conditions have led to the development of lateritic and humus-rich soil layers.


Deep valleys and wide rivers provide important windows into understanding the region’s geological diversity. Field geologists sometimes conduct airborne geophysical surveys lasting for months to reveal layers hidden beneath the dense forest cover. Gravity, magnetic, and radiometric maps make Gabon’s mineral potential more visible. Government institutions and mining companies use the findings to estimate reserves and identify new areas for investment. In this way, solid foundations are laid for the mining sector, which is on its way to becoming an important branch of the national economy.

 



Moanda: The Center of Manga

 

When Gabon is mentioned, the first mineral that comes to mind is manganese. In particular, Moanda, home to one of the largest manganese deposits known worldwide, has become a symbol of the country. This metal, which is critical in many sectors ranging from steel production to battery technology, is found in high-grade reserves in Moanda. With reserves amounting to millions of tons, it has provided the Gabonese economy with stable revenue for many years.

Upon arriving in the Moanda area, you encounter open-pit mines set in the heart of the tropical terrain. Large machinery operates continuously to extract the ore.

After extraction, the manganese is processed in washing and beneficiation plants before being transported to ports by rail or road. This process plays a critical role in the country’s development; mining operations provide employment and resources for local education and health projects. However, the environmental impacts of mining are also significant. Environmental monitoring and rehabilitation plans are implemented to mitigate risks such as erosion, water pollution, and deforestation.


Hope in the Iron Ore

 

In the northeastern part of Gabon, hidden within dense forests, Belinga is one of the most promising regions for the country’s iron ore. The banded iron formations here are notable for containing large quantities of high-grade iron. Due to the challenging topography and lack of infrastructure, the region has not yet been fully exploited. Nevertheless, data obtained from various drilling studies indicate that Belinga holds promise for the future.


Some foreign investors and mining companies are working on transportation projects that will connect the Belinga Group to global markets. Proposals for constructing large-scale railway and road networks are frequently discussed. If these plans come to fruition, Gabon is expected to become a strategic supplier for the steel industry. Geology and mining teams visiting Belinga conduct multifaceted studies ranging from aerial surveys to geochemical analyses. These activities aim for a sustainable operating model by accounting for the environmental impacts of iron mining.

 



Franceville and Uranium Riches

Located in southeastern Gabon, the Franceville Basin is an important area renowned for the country’s uranium deposits. Former uranium fields, such as Mounana and Oklo, were intensively operated during the latter half of the 20th century. The natural nuclear reactor formation in the Oklo field is a rare geological phenomenon found scarcely anywhere else in the world. The natural fission reactions that occurred approximately two billion years ago have provided scientists with crucial insights into geochemistry and nuclear processes.


Uranium mining has propelled Gabon into the global nuclear energy arena. Gabon’s uranium played a significant role in France’s past nuclear programs, and today, the potential resurgence of nuclear energy makes the Franceville Basin a promising region for the future. However, uranium mining demands high environmental and safety standards. Managing radioactive waste and protecting groundwater are central to the sustainability policies. Furthermore, thanks to expanding technological capabilities, other mineral riches in the basin’s vicinity are being examined in detail.

Gold, Rare Earth Elements, and Other Minerals

Small-scale gold mining in Gabon has become a means of livelihood for local communities. Gold found in river sediments and alluvial deposits is mostly extracted using simple hand tools. However, these traditional methods bring environmental hazards, such as mercury usage. The government aims to both increase tax revenue and protect the environment by regulating informal gold mining. Modern prospecting techniques suggest that the potential resources are much more extensive.


Rare earth elements (REEs), indispensable to modern technological devices, are another group of minerals being studied in Gabon. These minerals, which are especially critical for electric vehicles, wind turbines, and computer chips, have recently been targeted through geophysical and geochemical methods. As China and other global players search for new REE sources in Africa, Gabon emerges as one of the potential locations. This exploration is valuable for diversifying the country’s mineral portfolio and boosting its economic opportunities.

Sustainability and Conclusion

Gabon holds global ecological importance with its dense tropical rainforests. When such rich biodiversity confronts mining activities, the responsibilities of both the government and mining companies increase. Reforestation projects, water conservation initiatives, and collaboration with local communities are considered fundamental principles of sustainable mining. Environmentally friendly practices are being adopted in many sectors—from the manganese facilities in Moanda and the iron ore resources in Belinga to uranium mining in the Franceville Basin and the search for gold and REEs.


The country’s economic diversification is vital for its future. Long reliant on oil revenues, Gabon can achieve balanced growth by taking the right steps in the mining sector. Infrastructure projects, educational programs, and technological investments are paving the way for a high value-added mining industry. University departments of geology and mining engineering benefit from international funds and corporate scholarships, thereby fostering local expertise, reducing dependency on foreign companies, and strengthening local capacity.

In conclusion, Gabon stands apart not only because of its tropical forests but also due to its vast underground resources. Moanda’s enormous manganese deposits and Belinga’s high-grade iron reserves form two major pillars of the nation’s economy. The global interest generated by uranium in the Franceville Basin also positions Gabon prominently in nuclear energy discussions. Meanwhile, gold and rare earth elements enhance economic diversity and offer new opportunities. The sustainable management of these riches is essential for preserving the ecological and social balance of the region.


If you ever have the opportunity to visit this country, you may experience a blend of worlds—from the mining roads that wind beneath the shade of lush trees to the vibrant atmosphere of local towns. Gabon, where forest and mineral, tradition and modernity intertwine, truly deserves the title of “Underground Kingdom of Africa.” This land vividly exemplifies how nature and human endeavor can merge, showcasing both the challenges and opportunities of sustainable development.



References:

Republic of Turkey, Ministry of Trade. (2021). Mining Sector – Gabon [Document].Onur, G. (2013). Gabon Country Report [Presentation]. Ankara: Prepared by Gülsevin Onur.Eramet Group. (2023). Comilog: World Leader in High-Quality Manganese Production. Eramet.

 
 
 

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