Application of Clustering and Stepwise Discriminant Analysis Based on Hydrochemical Characteristics in Determining the Source of Mine Water Inrush

Table 2

Correlation Coefficient Matrix between Variables.

	Na^++K^+	Ca^2+	Mg^2+	Cl^-	SO4^2-	HCO3^-	TH	TA	TDS	PH
Na^++K^+	1.000
Ca^2+	0.379	1.000
Mg^2+	0.610	0.791	1.000
Cl^-	0.954	0.526	0.760	1.000
SO4^2-	0.242	0.861	0.628	0.289	1.000
HCO3^-	-0.397	0.697	0.735	0.533	-0.610	1.000
TH	0.479	0.977	0.904	0.634	0.823	-0.746	1.000
TA	-0.451	0.685	0.738	0.582	0.585	0.988	-0.739	1.000
TDS	0.903	0.717	0.846	0.951	0.567	-0.634	0.798	-0.668	1.000
PH	-0.659	0.543	0.723	-0.732	-0.350	0.623	-0.634	0.678	-0.733	1.000