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Table 4 Composition of low TDS waters, inflows to the Qaidam Basin

From: From freshwater inflows to salt lakes and salt deposits in the Qaidam Basin, W China

 

QD9

QD10

QD11

QD15

QD20

QD21

QD24

QD25

QD26

QD27

QD28

QD30

QD31

QD32

QD33

QD34

Temp (°C)

12.5

17.2

12

    

12.4

71.8

67

22

18

9.5

   

pH

8.34

9.34

8.12

8.22

8.24

8.25

8.08

8.26

7.79

7.91

8.35

8.43

8.55

8.36

8.51

7.79

Ca

46.70

14.70

36.80

39.30

46.70

44.40

47.50

37.60

25.80

26.00

49.70

118.00

36.50

62.40

36.80

231.00

Mg

44.00

66.50

498.00

18.67

27.90

18.95

19.04

11.41

0.15

0.29

8.68

314.90

8.37

45.40

48.90

189.00

Na

117.00

231.00

1007.00

112.00

48.00

37.00

750.00

31.30

337.00

330.00

158.00

776.00

23.20

646.00

72.30

921.00

K

5.47

7.97

17.40

11.80

3.07

4.67

4.51

1.64

13.50

13.70

7.43

50.70

1.25

8.64

5.97

15.40

Sr

0.69

0.45

3.61

0.71

0.61

0.49

2.34

0.29

0.34

0.33

0.46

2.16

0.24

4.29

1.00

7.44

Li

0.05

0.06

0.44

0.41

0.04

0.03

0.06

0.02

3.23

3.12

1.21

3.47

0.04

0.33

0.31

0.35

HCO3

336.2

297.8

945.8

186.1

246.5

201.4

256.3

116.6

206.9

207.5

170.9

396.6

123.9

215.2

213.4

211.7

SO4

119.0

209.0

639.0

81.0

54.3

45.6

191.0

32.6

191.0

190.0

117.0

448.0

28.1

435.0

152.0

1191.0

Cl

129.0

269.0

2055.0

163.0

65.5

52.1

1003.0

61.9

348.0

341.0

175.0

1813.0

44.8

815.0

88.4

1517.0

F

1.47

1.69

0.78

0.56

0.36

0.26

1.20

0.31

8.88

8.93

4.51

8.69

0.32

2.69

0.77

3.30

Br

0.05

0.05

0.68

0.05

  

0.46

0.04

0.59

0.61

0.26

2.33

 

0.31

0.03

0.14

NO3

0.56

0.10

 

3.99

3.70

3.10

6.56

2.61

    

3.68

   

SiO2

        

83.76

85.01

39.76

  

8.19

11.57

10.57

HBO2

1.34

2.55

 

5.69

1.08

0.77

5.99

2.41

165

165

68.8

127

2.63

10.4

2.24

3.06

TDS

802

1101

5205

623

498

409

2288

299

1540

1519

871

4061

273

2254

634

4301

Cl/Br (mass)

2580

5380

3022

3260

  

2180

1548

590

559

673

778

 

2629

2947

10,836

Na/Cl (mol)

1.32

0.76

1.06

1.13

1.09

1.15

0.78

1.49

1.49

1.39

0.66

0.80

1.22

1.26

0.94

 

Ca/SO4 (mol)

0.94

0.17

0.14

1.16

2.06

2.33

0.60

2.76

0.32

0.39

1.02

0.63

3.11

0.34

0.58

0.47

log mSiO2

        

− 2.947

− 2.952

− 3.279

     
  1. Sampling localities given on Fig. 2 and Table 1
  2. Blank values: Below detection limit. Solute concentrations in mg/kg