Skip to main content

Table 3 Mineralogical properties and geochemical analysis of selected soil samples

From: An investigation into the cause of road failure along Sagamu-Papalanto highway southwestern Nigeria

Sample Location UE/2 UE/7 UE/9 UE/10 UE/11 UE/13 UE/17 UE/20
Quartz (%) 78 85.6 47 58 70 45 65 35
Kaolinite (%) 12.14 13 42
Dickite (%) 35
Microcline (%)   30 50 63
Muscovite (%) 2 2
Iron sulfate (%) 20 5
Sanidine (%) 2.26 5
Illites (%) 40
% Oxide of Major elements
SiO2 41.30 41.00 53.98 43.50 47.47 44.25 46.14 40.54
Al2O3 21.19 22.99 29.50 22.20 21.40 17.10 23.60 17.00
Fe2O3 29.41 25.61 2.87 24.30 20.35 23.43 16.44 29.41
CaO 0.44 0.62 0.14 0.19 1.04 0.84 0.80 0.68
Na2O 0.16 0.11 2.17 0.51 0.41 0.26 0.18 0.41
K2O 3.25 3.40 9.86 4.25 4.67 5.62 4.86 5.60
MgO 0.32 1.59 0.17 0.73 0.72 0.77 0.50 0.72
TiO2 2.64 1.75 0.18 2.93 1.85 2.16 1.26 2.50
MnO 0.10 0.05 0.06 0.04 0.14 0.10 0.06 0.04
ZnO 0.03 0.04 0.01 0.01 0.02 0.01 0.02 0.01
CuO 0.02 0.01 0.01 0.03 0.01 0.02 0.04 0.01
Total 98.86 97.17 98.95 98.69 98.08 94.56 93.9 96.92
S/R 0.81 0.84 1.66 0.93 1.13 1.09 1.15 0.87