Identification of major sources controlling groundwater geochemistry in Mount Makabaï in the Far-North of Cameroon (the northernmost part of the Pan-African Belt)

Dedzo, Merlin Gountié; Tsozué, Désiré; Kpoumié, Amidou; Nzeukou, Aubin Nzeugang

doi:10.1007/s11631-022-00577-4

Cited by 4 publications

(3 citation statements)

References 78 publications

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“…SO 4 2− in groundwater generally originates from the dissolution of sulfate rocks, sulfide‐mineral oxidation, atmospheric deposition, and emissions from human activities (Gountié Dedzo et al, 2023; Keshav & Lata, 2015; Shao et al, 2023). Although human activities are strongly associated with agricultural activities, this study showed that synthetic sulfur fertilizers are rarely applied in the study area.…”

Section: Discussionmentioning

confidence: 99%

Hydrogeochemical characteristics, driving factors, and health risk assessment of karst groundwater in Southwest Hubei Province, China

Shan,

Tian,

Xie

et al. 2024

Water Environment Research

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In South China, karst groundwater is an important water resource for industrial, agricultural, and drinking purposes. However, karst aquifers are highly vulnerable to pollution, leading to deteriorating karst groundwater quality and posing potential health risks to local residents. In this study, 22 groundwater samples were collected from a karst aquifer in the southwestern part of Hubei Province. The hydrogeochemical characteristics and their controlling factors were examined, and the potential health risks associated with groundwater pollutant concentrations in karst groundwater were assessed. The results showed that the groundwater is slightly alkaline with low chemical oxygen demand values, indicating good water quality. The groundwater facies type was identified as HCO3‐Ca at most sample spots, showing low total dissolved solids concentrations. Substantial spatial variations in Na+, CO32−, and NO2− concentrations were found, whereas spatial variations in the K+, Ca2+, Cl−, HCO3−, and F− concentrations were small. In addition, the dissolution of gypsum deposits and magnesium carbonate sedimentary rocks at sampling sites resulted in groundwater facies types of HCO3•SO4‐Ca and HCO3‐Ca•Mg, with low total dissolved solids concentrations. The karst groundwater chemistry in the study area was mainly controlled by water–rock interactions, as well as by the dissolution of gypsum deposits and magnesium carbonate sedimentary rocks at specific groundwater sampling sites. The groundwater Cl− concentrations were mainly affected by atmospheric precipitation. NO3− was mainly derived from atmospheric precipitation, domestic sewage, septic tanks, and industrial activities, whereas SO42− was derived from atmospheric precipitation, sulfate rock dissolution, and sulfide mineral oxidation. These results highlight the absence of potential human health risks of NO3− and F− to infants, children, and adults, as their concentrations are below the corresponding regional background values. In contrast, the potential health risks of Cl− cannot be ignored, particularly for infants. This study offers scientific guidelines for protecting and allocating local groundwater resources.

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Section: Discussionmentioning

confidence: 99%

Hydrogeochemical characteristics, driving factors, and health risk assessment of karst groundwater in Southwest Hubei Province, China

Shan,

Tian,

Xie

et al. 2024

Water Environment Research

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“…Several major soil types can be distinguished, including vertisols with hydromorphic characteristics, often associated with lithosols, holomorphic, tropical ferruginous soils, and alluvial deposits (Kagonbé et al, 2023). The basement consists of massive garnet-rich micaschist and volcanic rocks that have been affected by tectonics and are partly covered by recent quaternary sediments (Gountié et al, 2022).…”

Section: Description Of Study Areamentioning

confidence: 99%

Gravel and River sand mining activities in Maroua (Far-North Region, Cameroon): Environmental and Socioeconomic aspects

Kagonbé,

Nafissa,

Djeutchou

et al. 2024

Arch. Agric. Environ. Sci.

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Sand and gravel mining are amongst the main factors that induces significant impacts on environment, as a result of growing need for building materials and as a source of income for rural communities. This study was conducted to assess the socio-economic and environmental effects of these activities in Maroua, Cameroon. Its objectives include a description of artisanal mining method and identification of its socio-economic and environmental impacts. The study was conducted in a multidisciplinary approach. During the fieldwork, data were collected using questionnaires and focused group discussions were undertaken with those responsible for managing natural resources in the that area. The results reveal that sand mining activity alter river morphology at a faster rate than normal river process, where river reduction of the extraction areas is significantly larger. These activities were responsible for quick resource depletion and adversely affecting the environment and causing disturbances such as, ecological balance, soil degradation, pollution, infrastructure destruction, as well as conflict between miners and communities. Despite the negative impacts, mining activities generate income for all parties involved in the value chain, including the government. Accordingly, based on the research results, there are concerns about sustainable extraction practices by implementing strict rules and government policies.

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“…Additionally, holomorphic soils, lithosoils, tropical ferruginous soils, and alluvial deposits are also observed [21] [22]. From a geological point of view, the study area consists globally of volcanic, plutonic, and metamorphic rocks [23] (Figure 3). Volcanic rocks are not sufficiently represented in this area, and mainly consist of gabbros, while metamorphic and plutonic rocks are gneisses (Figure 3), and granites respectively [23].…”

Section: Geographical and Geological Settingmentioning

confidence: 99%

Assessment of Soils Developed on Various Formations in Maroua (Far North, Cameroon) for Production of Compressed Earth Bricks

Kagonbé,

Souleymanou,

Bakaïné

et al. 2023

OJAppS

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One of the most important materials in the building industry is earth brick. The current work focuses on the evaluation of Maroua soils and their potential usage in the manufacturing of Compressed earth blocks (CEB). Four sites (Frolina, Goubeou, Mambang, and Djoulgouf) were chosen to conduct this study. One sample was collected at each location. Physico-chemical and mineralogical characteristics were obtained by using particle size, Atterberg limits, X-ray diffraction, and X-ray fluorescence analysis. Results revealed that sand is the most abundant fraction (36.9% -50.5%) followed by clay (22.1% -28.4%) and silt (11.3% -23.8%). They mostly correspond to sandy soils. Liquid and Plastic limits range between 22.6% to 41% and 16.1% to 24.9% respectively and the plasticity index spans from 6.5% to 20.3%. Plasticity is low for Mambang and Djoulgouf and medium for Goubeou and Frolina soils. Mineralogical composition revealed the presence of smectite, kaolinite, and illite as clay minerals, associated with variable amounts of quartz, goethite, and K-feldspars. Geochemical analyses indicate a high silica content (47.1% -72.8%) followed by alumina (10.9% -22.8%) and iron (6.4% -13.2%). The mineralogical, chemical and physical properties of the studied soils revealed that they are suitable for the manufacture of CEB according to the Cameroon Standards of CEB.

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Identification of major sources controlling groundwater geochemistry in Mount Makabaï in the Far-North of Cameroon (the northernmost part of the Pan-African Belt)

Cited by 4 publications

References 78 publications

Hydrogeochemical characteristics, driving factors, and health risk assessment of karst groundwater in Southwest Hubei Province, China

Hydrogeochemical characteristics, driving factors, and health risk assessment of karst groundwater in Southwest Hubei Province, China

Gravel and River sand mining activities in Maroua (Far-North Region, Cameroon): Environmental and Socioeconomic aspects

Assessment of Soils Developed on Various Formations in Maroua (Far North, Cameroon) for Production of Compressed Earth Bricks

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