Table 3.

Factor loadings (varimax normalized rotation)

Eigenvalues	5.7	3.1	3.1	2.5
Total variance (%)	34	18	18	15
Cumulative (%)	34	52	70	85
Variables	PC1	PC2	PC3	PC4
Li	0.19	0.47	0.75 #	0.26
V	0.83	0.49	0.25	0.06
Cr	0.53	0.55	0.49	0.21
Mn	−0.37	0.13	−0.81	0.28
Co	0.08	0.05	−0.21	0.90
Ni	−0.35	0.04	−0.22	0.87
Cu	−0.25	−0.79	0.04	0.14
Zn	0.10	−0.28	0.21	0.77
As	0.87	0.40	0.20	−0.10
Rb	−0.57	−0.28	−0.59	0.33
Sr	0.07	0.14	0.83	−0.13
Ag	0.92	−0.13	0.05	−0.06
Cd	0.94	−0.22	0.03	−0.01
Ba	0.57	0.53	0.39	0.02
Pb	0.90	0.26	0.077	−0.04
Tl	0.13	−0.80	−0.21	0.11
U	0.66	0.55	0.38	0.16

^#strong interreletion (in Italics)