Geoscience Reference
In-Depth Information
10000
10000
A: High mountain
E: Upland
1000
1000
100
10
1.0
100
10
1.0
0.1
0.01
0.1
0.01
0.001
0.001
0.00001
0.001
0.1
10
0.00001
0.001
0.1
10
Area x 10
6
(km
2
)
Area x 10
6
(km
2
)
10000
10000
B: Mountain Asia - Oceania
F: Lowland
1000
100
10
1000
100
10
1.0
0.1
0.01
1.0
0.1
0.01
0.001
0.001
0.00001
0.001
0.1
10
0.00001
0.001
0.1
10
Area x 10
6
(km
2
)
Area x 10
6
(km
2
)
10000
10000
C: Mountain N - S America, Africa, Alpine Europe
G: Coastal plain
1000
100
1000
100
10
1.0
0.1
10
1.0
0.1
0.01
0.01
0.001
0.001
0.00001
0.001
0.1
10
0.00001
0.001
0.1
10
Area x 10
6
(km
2
)
Area x 10
6
(km
2
)
10000
10000
D: Mountain non-Alpine Europe, high Arctic
1000
1000
100
10
1.0
100
10
1.0
D
B
C
E
F
G
0.1
0.01
0.1
0.01
0.001
0.001
0.00001
0.001
0.1
10
0.00001
0.001
0.1
10
Area x 10
6
(km
2
)
Area x 10
6
(km
2
)
Fig. 2.8
Relationship between sediment load and catchment area as classified by river basin category. Subdivision of river basins into
five categories based on maximum elevation within the hinterland: high mountain (headwaters at elevations
>
3000 m), mountain
(1000 -3000 m), upland (500 -1000 m), lowland (100-500 m) and coastal plain (
<
100 m). The
+
symbols denote data points not
included in regression calculations. (Source: Milliman & Syvitski 1992; reproduced with permission from
The Journal of Geology
,
Milliman, J.D. & Syvitski, P.M. (1992) Geomorphic/tectonic control of sediment discharge to the ocean: the importance of small
mountainous terrain,
100
, 525- 44.)
