Characterization of Origin and Evolution of Formation Water in Buried Hill of Jizhong Depression, China, Using Multivariate Statistical Analysis of Geochemical Data

Table 2

Table of component weightings, principal component eigenvalues, and variance of principal components.

Parameters	PC1	PC2	PC3
Na^+	0.878	0.256	−0.682
Mg^2+	0.281	−0.137	0.280
Ca^2+	0.219	−0.219	0.756
	0.288	0.799	0.324
Cl^−	0.953	0.093	0.249
	0.571	0.021	−0.570
Eigenvalue variance	3.227	1.343	1.043
Explained variance (%)	53.777	19.042	14.051
Cumulative % of variance	53.777	72.820	86.870