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Table 3 Results of soil analysis on the samples from gully sites of the Ajali Formation in the study area

From: Geology and geotechnical investigations of part of the Anambra Basin, Southeastern Nigeria: implication for gully erosion hazards

Location of the Gully

Liquid Limit %

Plastic Limit %

Plasticity Index %

Compaction

Permeability cm/s

Shear Strength

Sand %

Silt %

Sediment Description

O.M.C mg/m3

M.D.D mg/m3

Øo

Cohesion kg/cm2

Nsukka 1

24.60

24.60

0.00

6.40

1.70

2.11 × 10–3

26.0

0.31

100.0

0.0

Sand

Nsukka 2

21.40

25.70

4.30

10.30

1.80

3.61 × 10–3

28.0

0.24

98.0

1.2

Sand /silt

Nkpologu

26.80

29.40

2.60

7.80

2.40

3.23 × 10–3

24.0

0.36

93.0

2.4

Sand/silt

Ovoko 1

24.90

27.30

2.40

7.50

1.60

2.58 × 10–3

29.0

0.41

96.0

1.3

Sand/silt

Ovoko 2

25.40

28.80

3.40

8.20

2.80

3.4 × 10–3

23.0

0.38

93.0

2.6

Sand/silt

Ohodo 1

20.80

20.80

0.00

10.70

2.50

2.46 × 10–3

18.0

0.20

100.0

0.0

Sand

Ohodo 2

21.60

27.00

5.40

6.80

1.30

2.17 × 10–3

30.0

0.23

97.0

1.1

Sand/silt

Lejja

27.10

30.30

3.20

7.20

1.10

3.18 × 10–3

23.0

0.29

98.0

1.3

Sand/ silt

Opi 1

24.80

26.60

1.80

9.60

1.70

2.01 × 10–3

27.0

0.33

87.0

2.4

Sand/ silt

Range

21.40–27.10

20.80–30.30

0.00–5.40

6.40–10.70

1.10–2.80

(2.01–3.61) × 10–3

18.0—30.0

0.20–0.41

87.0–100.0

0.00–2.60

Sand/silt

Mean

24.09

26.79

2.70

8.47

1.90

2.70 × 10–3

25.3

0.30

95.10

1.43

Sand/silt