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<p>We applied the stream sediment geochemistry to infer the primary source of gold and determine the sediment provenance, environmental conditions and tectonic setting in the Bindiba gold district. Fifteen active stream sediment samples of &gt; 100&#xa0;µm fraction size were collected randomly from the bottom of stream channels. The chemical analysis was obtained by inductively coupled plasma mass spectrometry technique. The innovative aspects of this research are the application of centered log-ratio transformation to establish a linear relationship between variables and differentiate the geochemical source of element, and the separation of anomalous using the statistical method. The variability of trace elements is explained by two principal components. Au anomalous was separated using the correspondence analysis. Majors geochemical base metal and metallic trace elements point out high grade of Fe<sub>2</sub>O<sub>3</sub>, Al<sub>2</sub>O<sub>3</sub>, Mn, V, Cr, Pb, Se, Au (&gt; 10,000&#xa0;ppb), Hg, Ga, Y, U, Th, and rare earth elements. Au is associated with the elements of factor 2 including Cd, Cu, Nb, Ni, Pb, Sb, Sn, Tl, and Zn. The abundances of elements associated with Au is low, except for Cu, Ni, Sn, and Zn showing 9–202, 9–63, &lt; 32, and 27–289&#xa0;ppm, respectively. The relationships between Au and associated elements suggest that factor 2 refers to the mineralization factor and a sulfidation event was predominant during sediment deposition. Au anomalous was separated from the other elements and the strong Au anomaly underscores the district’s potential for further exploration. The findings provide geochemical markers and insight into sediment provenance, tectonic settings, and environmental conditions relevant to gold exploration in the region.</p>

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Geochemical and Gold-Ore Potential Assessment in Stream Sediments of Bindiba Gold District, Eastern Cameroon: Implications for Gold Exploration, Sediment Provenance, Paleoenvironment, and Tectonic Setting

  • 期刊论文

  • 发表日期：

    2025年6月10日

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  • Ndema Mbongue Jean-Lavenir,
  • Sigue Cyrille,
  • Echoimbe Dejoli Omar,
  • Lemnyuy Prosper Yiika,
  • Emmanuel Eseya Mengu Junior

摘要

We applied the stream sediment geochemistry to infer the primary source of gold and determine the sediment provenance, environmental conditions and tectonic setting in the Bindiba gold district. Fifteen active stream sediment samples of > 100 µm fraction size were collected randomly from the bottom of stream channels. The chemical analysis was obtained by inductively coupled plasma mass spectrometry technique. The innovative aspects of this research are the application of centered log-ratio transformation to establish a linear relationship between variables and differentiate the geochemical source of element, and the separation of anomalous using the statistical method. The variability of trace elements is explained by two principal components. Au anomalous was separated using the correspondence analysis. Majors geochemical base metal and metallic trace elements point out high grade of Fe2O3, Al2O3, Mn, V, Cr, Pb, Se, Au (> 10,000 ppb), Hg, Ga, Y, U, Th, and rare earth elements. Au is associated with the elements of factor 2 including Cd, Cu, Nb, Ni, Pb, Sb, Sn, Tl, and Zn. The abundances of elements associated with Au is low, except for Cu, Ni, Sn, and Zn showing 9–202, 9–63, < 32, and 27–289 ppm, respectively. The relationships between Au and associated elements suggest that factor 2 refers to the mineralization factor and a sulfidation event was predominant during sediment deposition. Au anomalous was separated from the other elements and the strong Au anomaly underscores the district’s potential for further exploration. The findings provide geochemical markers and insight into sediment provenance, tectonic settings, and environmental conditions relevant to gold exploration in the region.