Table 6 Correlation matrix of Pearson correlation coefficients for the concentrations of major chemical components and sorbed metals of the studied particle types in the sample PC. Correlation coefficients showing high correlation (−0 50 > r > 0.50) are highlighted with italics. Between 14 and 29 particles was studied by point chemical analysis (TEM-EDS) within the studied particle type groups. *Although the correlation coefficient suggested a strong relationship, it was influenced by a few outlier data

From: Effect of pedogenic iron-oxyhydroxide removal on the metal sorption by soil clay minerals

  Calcite Illite/smectite Smectite Clay-ferrihydrite Ferrihydrite
  Cd Cu Pb Zn Cd Cu Pb Zn Cd Cu Pb Zn Cd Cu Pb Zn Cd Cu Pb Zn
Si 0.59 0.61 0.64 -0.39 -0.49 -0.59* -0.57* -0.67* -0.43 -0.38 -0.64* -0.27 -0.53 -0.53 -0.75 -0.59 -0.53* 0.10 0.08 0.34
Al 0.64 0.59 0.50 -0.49 -0.30 -0.12 -0.81 0.11 0.16 0.83 0.07 -0.41 -0.03 -0.34 -0.32 -0.29 -0.39 -0.40 -0.49 0.10
Fe 0.70 0.92 0.86 -0.40 0.13 -0.01 0.73 -0.26 0.30 0.07 0.73* 0.39 0.22 0.72 0.89* 0.67* 0.39 0.00 -0.32 -0.54*
Mg 0.50 0.41 0.08 -0.70 0.67* 0.82 0.52 0.14 0.32 0.44 0.29 0.30 0.01 0.11 -0.38 0.00 -0.15 -0.52* -0.33 0.06
Ca -0.60 -0.58 -0.69 0.20 0.28 0.32 0.73 0.40 0.19 -0.28 0.18 0.12 0.02 0.10 0.04 0.05 0.06 -0.68* -0.35 -0.20
Na 0.44 0.23 0.19 -0.32 0.73* 0.84* 0.36 0.33 0.09 -0.17 -0.74 -0.43 0.67* 0.09 -0.04 0.32 0.13 -0.60* -0.18 -0.19
K -0.03 0.31 0.08 -0.34 -0.44 0.04 -0.38 0.32 0.27 0.82 -0.22 -0.52 0.06 -0.42 -0.45 -0.13 0.47 -0.62* -0.85* -0.66*