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<p>The Minim-Martap bauxite deposit in the Adamawa region is a major, high-grade resource developed by Canyon Resources for large-scale export, featuring over 1.1&#xa0;billion tonnes of resource and 144&#xa0;million tonnes of proven reserves (alumina, and low silica). The characterization of alumina deposits from the Minim-Martap Agnes and Beatrice plateau is the purpose of this work. Twenty-five (25) samples of the deposits were subjected to petrographic, X-ray fluorescent (XRF), and physico-mechanical méthodes. Chemical analysis shows that the bauxite deposits are mainly composed of aluminum oxide (Al₂O₃), silica oxide (SiO₂), and iron oxide (Fe₂O<sub>3</sub>). The physico-mechanical analysis reveals a specific gravity of 2.68. This analysis equally shows that the Fe₂O<sub>3</sub>/Al₂O₃ ratio is less than 1, which is important to the economic viability for industrial-scale alumina production. The extraction of high-grade, low-silica ore is suitable for alumina refining, which increases a robust bauxite-to-aluminum industrial relationship by boosting Cameroon’s export and industrial base. For scientific relevant, this study enhances lateritic bauxitization and geological evolution, high-precision mineralogical characterization, and metallurgical optimization.</p>

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Basic characterization of the Minim-Martap alumina deposit (Adamawa, Cameroon) from the Beatrice and Agnes plateaus

  • 期刊论文

  • 发表日期：

    2026年4月15日

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  • Jean Fabrice Amougou Ayissi,
  • Estelle Philomene Nga Essomba Tsoungui,
  • Aurèlie Kamwa Ngamy,
  • Paul Didier Kamdem Kuate,
  • Finalise Komofor Ngopuh,
  • Robinson Tchatchueng,
  • Sifeu Takougang Kingni

摘要

The Minim-Martap bauxite deposit in the Adamawa region is a major, high-grade resource developed by Canyon Resources for large-scale export, featuring over 1.1 billion tonnes of resource and 144 million tonnes of proven reserves (alumina, and low silica). The characterization of alumina deposits from the Minim-Martap Agnes and Beatrice plateau is the purpose of this work. Twenty-five (25) samples of the deposits were subjected to petrographic, X-ray fluorescent (XRF), and physico-mechanical méthodes. Chemical analysis shows that the bauxite deposits are mainly composed of aluminum oxide (Al₂O₃), silica oxide (SiO₂), and iron oxide (Fe₂O3). The physico-mechanical analysis reveals a specific gravity of 2.68. This analysis equally shows that the Fe₂O3/Al₂O₃ ratio is less than 1, which is important to the economic viability for industrial-scale alumina production. The extraction of high-grade, low-silica ore is suitable for alumina refining, which increases a robust bauxite-to-aluminum industrial relationship by boosting Cameroon’s export and industrial base. For scientific relevant, this study enhances lateritic bauxitization and geological evolution, high-precision mineralogical characterization, and metallurgical optimization.