Characterization and potential application of gleysols and ferralsols for ceramic industry: a case study from Dimako (Eastern Cameroon)

Doum, Josti M.; Fuh, Gentry Calistus; Fadil-Djenabou, Soureiyatou; Onana, Vincent Laurent; Ndjigui, Paul‐Désiré; Armstrong‐Altrin, John S.

doi:10.1007/s12517-020-06007-0

Cited by 5 publications

(2 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The intermediate to intense weathering conditions revealed by the soil is marked by clay minerals (Figure 6, kaolinite, gibbsite, chlorite, illite). The soil show similarities in mineral composition (as determined by the X-ray diffraction technique) with lateritic soil developed on granite in the eastern region of Cameroon [53,54]. It is worth noting that the formation of the regolith seems to be accompanied by the segregation of elements such as Au-As-Ce-Cu-Pb-Rb-Sr-Y-Zn indicating contribution from felsic bedrock, while the Cr-V content can be a ributed to subordinate mafic lithologies (Figure 8; [9,55]).…”

Section: Geochemical Characterization Of the Weathering Blanketmentioning

confidence: 95%

Soil Geochemistry Combined with Particulate Gold Microchemistry Provides Evidence of Eluvial Gold Genesis and Anthropogenic Hg Use in Eastern Cameroon Goldfields

Vishiti,

Suh,

Ngatcha

et al. 2024

Minerals

View full text Add to dashboard Cite

The identification of trace element anomalies in soils has been proven to assist semi-mechanized small-scale gold operations. This study employs soil geochemistry combined with the microchemical signature of particulate gold from the Batouri goldfield to (1) vector possible gold-endowed lithologies introducing particulate gold into the overlying regolith, and (2) assess anthropogenic Hg used in purification of both primary and alluvial/eluvial gold by artisans. The soil geochemistry shows irregularly distributed anomalies of elevated Cu especially in the saprolite soil layer. Whereas in the lateritic soil layer, a Au-Ag-Hg metal association is reported for the first time in this gold district and could be linked to anthropogenic Hg used in gold recovery. Particulate gold recovered from the soil varies in shape from euhedral and irregular to sub-rounded, indicating a proximal lode source. The gold grains range in size from nano-particles to >300 µm and are Au-Ag alloys. The gold particles reveal inclusions such as quartz, silicate, zircon and ilmenite suggesting that the grains were dislodged from quartz veins within the granitic basement. Systematic variation in the microchemical signature of the gold grains is suggestive of spatial and temporal evolution of the mineralizing fluid. These results are consistent with investigations from similar geologic settings worldwide and validate the combined utility of gold fingerprinting and pathfinder elements in soil to examine deposit genesis in other gold districts globally.

show abstract

Section: Geochemical Characterization Of the Weathering Blanketmentioning

confidence: 95%

Soil Geochemistry Combined with Particulate Gold Microchemistry Provides Evidence of Eluvial Gold Genesis and Anthropogenic Hg Use in Eastern Cameroon Goldfields

Vishiti,

Suh,

Ngatcha

et al. 2024

Minerals

View full text Add to dashboard Cite

show abstract

“…Powders were digested by acid attack in closed beakers for Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) analysis for lithophile trace element concentrations. The analysis was carried out following the procedure of Doum et al. (2020) .…”

Section: Materials and Analytical Proceduresmentioning

confidence: 99%

Petrological features of volcanic scoriae from the southern part of the Cameroon Volcanic Line and their supplementary cementations application

Onana

Gentry

Ndjigui

2022

Heliyon

Self Cite

View full text Add to dashboard Cite

Volcanic scoriae from the southern part of the Cameroon Volcanic Line (Limbé, Loum-Tombel, Yamba, Doupé, Njinkouo, Foumbot, Manjo-manengollé, Galim and Djoungo) were investigated in order to determine their chemical and mineralogical composition, to deduce their origin and to identify their natural characteristics which may be useful to the cement industry. The mineralogical composition was determined by X-ray Diffractometer (XRD); X-ray Fluorescence (XRF) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) instruments provided geochemical data. In order to establish the relationship between the natural characteristics of volcanic scoriae and the properties of cements, the amount of amorphous phases was determined by dissolution using sodium hydroxide solution and the pozzolanic activity by thermogravimetric analysis. Field observations show that these rocks are basalts, basanites, hawaiites and picrobasalts. Their mineralogical composition includes augite, olivine, plagioclase, enstatite, feldspars, ettringite, portlandite and Fe–Ti minerals. Overall, they are characterized by high MgO, Fe 2 O 3 , CaO, and TiO 2 contents. The behavior of major and trace elements suggests that volcanic scoriae have an evolution dominated by partial melting. Besides, high chondrite normalized La/Yb (8–22), Tb/Yb (>1.9) and Dy/Yb (>2) values suggest that the melting corresponds to the garnet lherzolite stability field. The scoriae exhibit good pozzolanic reactivity after 28 days according to their considerable amount of amorphous phases, low CaO contents and their large specific surface area. According to ASTM C618 standard, the sum of SiO 2 , Al 2 O 3 and Fe 2 O 3 (SAI = 65.96–76.34 wt.%); LOI (-0.1–16.99 wt.%), and of CaO, Fe 2 O 3 and MgO (CIM = 23.43–34.06 wt.%) suggest that those less weathered materials seem appropriate as an additive in cement manufacture. The suitable use of volcanic scoriae in the cement industry closely depends on the petrological features of amorphous phases.

show abstract

Critical evaluation of weathering indexes for paleoclimatic reconstructions: indication from recent sediments and Mesozoic sedimentary rocks from equatorial to tropical Central Africa (Cameroon and Nigeria)

et al. 2023

View full text Add to dashboard Cite

Characterization and potential application of gleysols and ferralsols for ceramic industry: a case study from Dimako (Eastern Cameroon)

Cited by 5 publications

References 48 publications

Soil Geochemistry Combined with Particulate Gold Microchemistry Provides Evidence of Eluvial Gold Genesis and Anthropogenic Hg Use in Eastern Cameroon Goldfields

Soil Geochemistry Combined with Particulate Gold Microchemistry Provides Evidence of Eluvial Gold Genesis and Anthropogenic Hg Use in Eastern Cameroon Goldfields

Petrological features of volcanic scoriae from the southern part of the Cameroon Volcanic Line and their supplementary cementations application

Critical evaluation of weathering indexes for paleoclimatic reconstructions: indication from recent sediments and Mesozoic sedimentary rocks from equatorial to tropical Central Africa (Cameroon and Nigeria)

Contact Info

Product

Resources

About