Damage Features of Altered Rock Subjected to Drying-Wetting Cycles

Table 2

The analysis of solution pH in groundwater.

Sample	Anions (mg/L)			Cations (mg/L)					pH
	Cl^−	SO4^2−	HCO3^−	Na^+	Ca^2+	Mg^2+	Fe^3+	K^+
Sy-1	13955.09	1910.85	266.11	7693.67	877.41	433.46	225.11	100.41	7.05
Sy-2	11462.34	1581.51	121.47	6236.54	926.54	956.65	372.46	151.24	7.14
Sy-3	15874.53	2047.81	158.03	8203.55	699.03	576.41	207.58	139.42	6.11
Sy-4	16469.54	1142.50	103.55	5779.03	955.68	395.45	469.57	121.41	5.84
Sy-5	19821.47	2237.41	236.47	9476.53	474.57	672.47	201.17	169.85	5.31
Sy-6	21400.51	2478.56	369.58	10034.12	399.85	525.17	187.49	99.47	4.55
Sy-7	18477.16	1569.44	294.87	8966.52	541.21	469.54	233.51	106.17	6.21
Sy-8	20414.52	1966.72	306.22	9794.12	472.34	983.27	200.03	101.17	5.01