Tables for Chapter 2 Cation Exchange Capacity

Table 1. Cation Exchange Capacity of the different types of material
(modified from Appelo and Postma, 1993 and Velde, 1995).

Type of material

CEC (meq/100g)

Kaolinite

3-15

Chlorite

10-40

Illite

10-40

Smectite

80-150

Organic matter

150-400

Goethite & Hematite

up to 100

 

Table 2. Results of the measurement of 
cation exchange capacity for sample B

Material

CEC

meq/100g.

Weight

Fraction

Relative Proportion

of CEC

Coatings

78.3

13%

97%

Naked Grains

0.29

87%

3%

Calculated Whole Sample

10.4

100%

100%

MeasuredWhole Sample

11.7

100%

100%

 

 

 

Table 3. Cation Exchange Capacity (CEC) of the sediments from
Port Jefferson, South Setauket, David Weld Preserve, Fox Pond
 and the core from Cathedral Pine County Park.

 

 

 

Exchangeable Cations (meq/100g)

 

 

Depth

(cm)

Samples

Ca

Mg

Fe

Mn

Na

Al

K

Total

CEC

 

Port Jefferson

 

100-120

1

0.91

0.32

0.82

0.09

1.34

2.62

0.31

6.40

 

160-180

5

1.00

0.42

0.80

0.04

1.42

2.29

0.38

6.35

 

South Setauket

 

120-140

6

0.78

0.18

0.49

0.03

1.55

0.81

0.19

4.03

 

200-220

7

1.53

0.16

0.09

0.07

2.75

0.22

0.15

4.98

 

Beach Cliff at David Well Preserve

 

800-1000

9

8.68

7.38

0.13

0.01

0.64

0.16

0.26

17.3

 

1000-1200

10

10.51

8.78

0.14

0.02

1.23

0.19

0.42

21.3

 

Soil samples from Fox Pond

 

5-20

 

A1

3.74

0.15

0.69

0.14

0.62

8.75

0.57

14.7

 

20-30

 

A2

1.80

0.06

0.78

0.07

0.30

5.76

0.42

9.20

 

30-50

 

B

1.17

0.05

0.54

0.06

0.19

9.34

0.34

11.7

 

 

Core of sediments from Cathedral Pine County Park

 

 

 0-30      

11

1.49

0.60

0.04

0.11

1.82

13.8

0.44

18.3

 

 

30-60

12

0.40

0.30

<DL

0.04

1.36

11.4

0.39

13.9

 

 

60-90

13

0.84

0.50

<DL

0.16

0.93

10.7

0.33

13.4

 

 

90-120

14

<DL

0.22

<DL

0.08

0.65

4.18

0.36

5.48

 

 

150-180

15

<DL

0.13

0.06

0.06

0.88

0.02

0.16

1.32

 

 

210-240

16

<DL

0.11

<DL

0.08

0.52

<DL

0.13

0.85

 

 

 

 

 

Exchangeable cations (meq/100g)

 

 

Depth

(cm)

Samples

Ca

Mg

Fe

Mn

Na

Al

K

Total

CEC

 

 

 

270-300

17

<DL

0.23

0.12

0.31

0.71

<DL

0.25

1.62

 

 

360-390

18

<DL

0.75

<DL

0.48

1.55

<DL

0.69

3.47

 

 

420-440

19

<DL

0.06

<DL

0.05

0.79

<DL

0.11

1.02

 

 

450-480

20

0.22

0.13

<DL

0.10

0.73

<DL

0.16

1.34

 

 

Table 4. Relative ion concentration to the total Cation Exchange Capacity.
Core from Cathedral Pines County Park.

 

Depth

(cm)

Samples

Ca %

From total CEC

Mg %

Form

total

CEC

 

Fe %

From

total

CEC

Mn %

From

total

CEC

Na %

From

total

CEC

Al %

From

total

CEC

K %

From

total

CEC

0-30

11

8%

3%

0%

1%

10%

75%

2%

30-60

12

3%

2%

0%

0%

10%

82%

3%

60-90

13

6%

4%

0%

1%

7%

79%

2%

90-120

14

0%

4%

0%

1%

12%

76%

7%

150-180

15

0%

10%

5%

4%

67%

2%

12%

210-240

16

0%

13%

0%

10%

61%

0%

16%

270-300

17

0%

14%

7%

19%

44%

0%

16%

360-390

18

0%

22%

0%

14%

45%

0%

20%

420-440

19

0%

6%

0%

5%

78%

0%

11%

450-480

20

16%

9%

0%

7%

55%

0%

12%

 

 

Table 5. BaCl2 and H20 pH values.
Samples from Port Jefferson, South Setauket and the core from Cathedral Pines County Park.

 

Sample

Depth(cm)

pH (BaCl2)

pH

(H20)

Pine Cathedral County Park

11

0-30

4.28

5.12

12

30-60

4.39

4.91

13

60-90

4.41

5.13

14

90-120

 

4.48

 

5.05

 

15

150-180

5.61

5.18

16

210-240

5.72

4.91

17

270-300

5.46

5.05

18

360-390

6.06

5.41

19

420-440

5.84

5.22

20

450-480

6.07

5.27

Port Jefferson

1

100-120

4.59

6.62

5

160-180

4.67

6.87

South Setauket

6

120-140

5.52

6.65

7

200-220

5.84

6.59

 

 

Table 6. Concentration of hydrogen (H+) ion in the core
from the Cathedral Pine County Park (H20 and 0.1M BaCl2 extractions).

 

Sample

Depth(cm)

H+ (BaCl2) (meq/100g)

H+(H20) (meq/100g)

11

0-30

5.5*10-2

8*10-3

12

30-60

4*10-2

1.4*10-2

13

60-90

3.9*10-2

7.2*10-3

14

90-120

2.7*10-2

1.35*10-2

15

150-180

3*10-3

8.2*10-3

16

210-240

1.9*10-3

1.2*10-2

17

270-300

3*10-3

1.1*10-2

18

360-390

8.4*10-4

4.5*10-3

19

420-440

1.4*10-3

6.3*10-3

20

450-480

8.9*10-4

6.1*10-3