Geoscience Reference
In-Depth Information
Texture - area 2 Texture - area 3
Gravel
Gravel
0
0
100
100
Area 1 - June 1994
Area 1 - February 1995
10
10
Area 3 - June 1994
Area 3 - February 1995
90
90
20
20
80
80
30
30
70
70
40
40
60
60
50
50
50
50
60
60
40
40
70
70
30
30
80
80
20
20
90
90
10
10
100
100
0
0
0
Mud
10
20
30
40
50
60
70
80
90
100
Sand
Mud
0
10
20
30
40
50
60
70
80
90
100
Sand
Grab samples
February 1995
Grab samples
June 1994
Grab samples
February 1995
Grab samples
June 1994
50
40
30
20
10
0
50
40
30
20
10
0
50
40
30
20
10
0
50
40
30
20
10
0
%
%
%
%
-1 0 1 2 3 4
-1 0 1 2 3 4
-1 0 1 2 3 4
-1 0 1 2 3 4
Fig. 10.12
Sediment texture and representative grain-size distributions of the sand fractions of sediments from the middle shelf off Namibia: (left) unmined sediments
(unimodal very fine sands); (right) mined sediments (polymodal sands). (Adapted from Rogers & Li 2002.)
