Horizon

Thickness (cm)

Number of pebbles

Long axis (cm)

Short axis (cm)

Saprolite

35

9

0.9

2.2

2.0

1.2

1.5

2.4

1.8

1.4

2.5

0.4

1.4

0.9

0.6

1.1

2.4

0.9

0.4

2.4

Sandy layer

60

9

3.0

2.9

3.7

2.0

2.0

1.0

0.6

0.8

0.5

2.6

2.4

2.4

2.4

1.2

0.6

0.5

0.5

0.4

Gravel layer

160

10

5.0

20

7.0

7.3

4.8

6.0

3.0

3.2

5.5

3.5

4.5

1.3

5.8

5.5

3.2

5.5

2.5

2.1

2.7

2.0