Horizon

Thickness (cm)

Number of pebbles

Long axis (cm)

Short axis (cm)

Saprolite

160

8

0.6

0.8

3.1

2.3

3.7

0.3

5.0

1.3

0.3

0.4

1.7

1.2

2.3

0.1

1.5

0.6

Sandy layer

150

8

1.7

3.5

2.5

0.3

1.0

1.5

0.7

1.8

1.2

1.4

0.1

0.1

0.5

0.7

0.1

0.8

Gravel layer

100

7

2.8

2.1

2.1

4.3

0.7

1.3

2.8

1.4

1.5

1.7

3.9

0.1

0.7

1.9