A Rapid Cu Enrichment Mechanism from Cu-Bearing Brine in Kuqa Basin, Xinjiang, China: Controlled by Crystallized Sequence of Saline Minerals

Table 5

Main chemical components of the surface brine.

Sample numbers	K^+ (mg/l)	Na^+ (g/l)	Ca^2+ (g/l)	Mg^2+ (g/l)	SO4^2- (g/l)	Cl^- (g/l)	Cu^2+ (mg/l)
YSG-W1	112.76	31.51	2.60	0.80	4.89	53.12	<0.004
DYSG-W1	133.96	70.00	9.39	2.56	1.59	124.06	<0.004
DYSG-W2	134.30	66.62	9.23	2.54	1.68	124.70	<0.004
DYSG-W3	242.50	108.52	11.98	3.52	0.78	205.31	<0.004
DQ8-W1	115.82	31.65	2.62	0.78	4.95	51.90	<0.004
DQ8-W2	104.70	29.81	2.58	0.77	4.89	48.03	<0.004
WBS-W1	190.52	109.64	1.43	0.73	5.76	176.05	<0.004
WBS-W2	44.90	13.47	0.94	0.64	5.22	16.90	<0.004
KZE-W1	288.48	110.05	9.56	1.70	0.90	186.56	0.160
KZE-W2	293.04	109.40	9.60	1.69	0.90	189.66	0.315
KZE-W3	281.80	96.31	7.89	1.96	0.63	164.29	0.225
KZE-W4	295.22	96.71	9.93	2.16	0.72	167.35	0.330
KZE-W5	8.76	1.75	0.80	0.12	2.67	2.33	<0.004