Table 1 Hydrochemical statistics of brine in Mahai Salt Lake.

From: Dynamic characteristics and evolution laws of underground brine in Mahai salt lake of Qaidam Basin during mining process

 

K+

(g/L)

Na+

(g/L)

Ca2+

(g/L)

Mg2+

(g/L)

Cl-(g/L)

SO42- (g/L)

pH

density

salinity

Porosity

(%)

(g/cm3)

Stage 1

Number of samples added: 20

Max

9.90

108.00

1.28

29.48

221.70

26.79

8.58

1.24

361.9

19.04

Minimum

4.48

45.50

0.20

9.57

178.10

9.96

7.81

1.21

320.7

11.17

Average

5.76

81.73

0.84

13.80

187.72

15.62

8.28

1.22

334.76

15.28

Standard deviation

2.04

19.97

0.27

5.61

11.09

3.55

0.19

0.01

12.97

2.67

Coefficient of variation

0.35

0.24

0.32

0.41

0.06

0.23

0.02

0.01

0.01

0.17

Stage 2

Number of samples added: 37

Max

9.26

113.00

0.91

117.70

333.70

36.07

8.72

1.33

461.9

28.51

Minimum

5.06

10.35

0.21

6.64

173.40

7.71

7.71

1.02

288.1

14.66

Average

6.83

68.87

0.49

37.49

203.21

8.27

8.27

1.21

326.51

20.60

Standard deviation

1.21

29.35

0.20

27.03

30.70

9.21

0.27

0.05

29.17

3.98

Coefficient of variation

0.18

0.43

0.41

0.72

0.15

0.51

0.03

0.04

0.09

0.19

Stage 3

Number of samples added: 111

Max

15.34

113.70

1.53

94.31

340.50

27.79

9.68

1.46

463.50

25.86

Minimum

0.59

21.65

0.28

9.97

139.30

6.04

7.80

1.27

300.60

12.28

Average

6.44

67.55

0.37

50.83

215.15

15.22

8.69

1.33

335.22

18.79

Standard deviation

2.88

27.08

0.31

21.16

38.91

5.26

0.28

0.02

26.29

2.50

Coefficient of variation

0.44

0.40

0.83

0.42

0.18

0.35

0.03

0.01

0.07

0.13

Back to article page