Dataset on Dumpsite Minerallogical Transformation in Basement Terrains
Description
The data used for this study are soil samples obtained both from within and outside the waste dump site. Five pits were dug to a total depth of 1.5m in all for collecting soil samples for analysis. Three pits (PF1-3) were selected within the dumpsite and two control-sites (BH1-2) at a distance of 100m away up and down stream of the dumpsite. Four samples were taken from each of the pits at depth intervals of 0.0m, 0.5m, 1.0m and 1.5m respectively. The 0.0m sample represented the surface sample while the 0.5m, 1.0m and 1.5m samples represented the intermediate and subsurface samples respectively. Mineralogical characterization were carried out using arrays of qualitative and quantitative X-ray diffraction (XRD) and Scanning electron microscopy (SEM) techniques. The effect of existing dumpsite on the mineralogical changes of nearby soils was evaluated with the use of arrays of qualitative and quantitative X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) techniques respectively. The morphology and the in situ chemical composition of some samples from the waste dump and natural areas were observed and determined using a Philips XLS-30 SEM. Scanning electron microscopy (SEM) was also performed to identify and understand the distribution of secondary mineral phases present at the soil and waste dump profiles.
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Steps to reproduce
Five pits were dug in all for collecting soil samples for analysis. 3 pits were spread across the dumpsite at 100m interval, 1 trench was dug in the natural environment 100m up-gradient of the dumpsite while the last pit was located 100m down-gradient outside the dumpsite. Four samples were taken from each of the pits at depth intervals of 0.0m, 0.5m, 1.0m and 1.5m respectively. Soil profiles were established for each of the pits and a correlation of all the encountered layers was carried out. The 0.0m sample represented the surface sample while the 0.5m, 1.0m and 1.5m samples represented the intermediate and subsurface samples respectively. Mineralogical characterization were carried out using arrays of qualitative and quantitative X-ray diffraction (XRD) and Scanning electron microscopy (SEM) techniques.