Geology Reference
In-Depth Information
Sediment yield
(tonnes/km /yr)
2
1,000
500
100
50
10
142
5
59
2
25
100
444
3
30
3
31
131
133
1,738
6
66
1
17
110
256
930
210
3,000
1,438
232
6
67
286
113
290
150
2
28
3,228
1
17
1
18
154
Annual suspended
sediment discharge
(million tonnes)
6
62
290
Figure 2.4
(a) Sediment yield of the world's chief drainage basins. Blank spaces indicate essentially no discharge to the
ocean. (b) Annual discharge of suspended sediment from large drainage basins of the world. The width of the arrows
corresponds to relative discharge. Numbers refer to average annual input in millions of tonnes. The direction of the
arrows does not indicate the direction of sediment movement.
Source:
Adapted from Milliman and Meade (1983)
