Provenance, weathering, and metallogenic characteristics of lateritic soils in the Koubou district, Eastern Cameroon

IF 1.827 Q2 Earth and Planetary Sciences

Arabian Journal of Geosciences Pub Date : 2025-03-15 DOI:10.1007/s12517-025-12231-3

Amaya Adama, Bisse Salomon Bertrant, Bokanda Ekoko Eric, Anyeku Njek Rexon, Boroh Andre William, Ngwang Nfor Bertrand

{"title":"Provenance, weathering, and metallogenic characteristics of lateritic soils in the Koubou district, Eastern Cameroon","authors":"Amaya Adama, Bisse Salomon Bertrant, Bokanda Ekoko Eric, Anyeku Njek Rexon, Boroh Andre William, Ngwang Nfor Bertrand","doi":"10.1007/s12517-025-12231-3","DOIUrl":null,"url":null,"abstract":"<div>The lateritic soils in the Eastern region of Cameroon were subject to geochemical investigation in order to unveil their source rock composition, tectonic setting, past weathering intensity, climate type, and metallogenic properties. Source rock binary plots of Al2O3 vs. TiO2, Th/Sc, La/Co, and Cr/Th indicates a felsic composition origin for the studied lateritic soils. The lateritic soils reflect a tectonic background of passive origin revealed by plots of Log (SiO2 vs. K2O/Na2O), DF (A-P)MT, DF1 vs. DF2, and DF (A-P)M. The high plagioclase lixiviation and weathering displayed by the studied laterites are signpost by the plagioclase index of alteration (PIA) and chemical index of alteration (CIA) within a hot humid climatic condition. The hot humid conditions that existed during the laterites’ formation revealed by the PIA and CIA is also supported by trace element ratios f Rb/Sr Al2O3/MgO, Sr/Cu, Sr/Ba, and Fe2O3/MnO. The ternary plot of SiO2-Al2O3-Fe2O3 coupled with the ternary plot of Al2O3-Fe2O3-MnO indicates that the studied lateritic soil is classified as metalliferous to terrigenous bauxitic clay with evidence of weak lateritization.\n</div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 4","pages":""},"PeriodicalIF":1.8270,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arabian Journal of Geosciences","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s12517-025-12231-3","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}

引用次数: 0

Abstract

The lateritic soils in the Eastern region of Cameroon were subject to geochemical investigation in order to unveil their source rock composition, tectonic setting, past weathering intensity, climate type, and metallogenic properties. Source rock binary plots of Al₂O₃ vs. TiO₂, Th/Sc, La/Co, and Cr/Th indicates a felsic composition origin for the studied lateritic soils. The lateritic soils reflect a tectonic background of passive origin revealed by plots of Log (SiO₂ vs. K₂O/Na₂O), DF (A-P)MT, DF1 vs. DF2, and DF (A-P)M. The high plagioclase lixiviation and weathering displayed by the studied laterites are signpost by the plagioclase index of alteration (PIA) and chemical index of alteration (CIA) within a hot humid climatic condition. The hot humid conditions that existed during the laterites’ formation revealed by the PIA and CIA is also supported by trace element ratios f Rb/Sr Al₂O₃/MgO, Sr/Cu, Sr/Ba, and Fe₂O₃/MnO. The ternary plot of SiO₂-Al₂O₃-Fe₂O₃ coupled with the ternary plot of Al₂O₃-Fe2O3-MnO indicates that the studied lateritic soil is classified as metalliferous to terrigenous bauxitic clay with evidence of weak lateritization.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Arabian Journal of Geosciences GEOSCIENCES, MULTIDISCIPLINARY-

自引率

0.00%

发文量

1587

审稿时长

6.7 months

期刊介绍： The Arabian Journal of Geosciences is the official journal of the Saudi Society for Geosciences and publishes peer-reviewed original and review articles on the entire range of Earth Science themes, focused on, but not limited to, those that have regional significance to the Middle East and the Euro-Mediterranean Zone. Key topics therefore include; geology, hydrogeology, earth system science, petroleum sciences, geophysics, seismology and crustal structures, tectonics, sedimentology, palaeontology, metamorphic and igneous petrology, natural hazards, environmental sciences and sustainable development, geoarchaeology, geomorphology, paleo-environment studies, oceanography, atmospheric sciences, GIS and remote sensing, geodesy, mineralogy, volcanology, geochemistry and metallogenesis.