VI
4.1.10 Sinks or sources of sediments for bromine ......................
51
4.2 Distribution of heavy metals between sediments and porewater .....
54
4.2.1 Copper ................................................................................
54
4.2.2 Cadmium ...........................................................................
58
4.2.3 Lead ...................................................................................
60
4.2.4 Zinc ....................................................................................
62
4.2.5 Chromium ..........................................................................
65
4.2.6 Cobalt .................................................................................
69
4.3 Mobilization of heavy metals ...........................................................
72
4.3.1 Metal-sulfide precipitation/dissolution and mobility of
Cd, Zn, Pb and Cu ..............................................................
72
4.3.2 Influence of organic complexes and Fe/Mn redox
processes .............................................................................
76
4.3.3 Degradation of organic matter and the mobility of heavy
metals .................................................................................
77
4.4 Early diagenesis and heavy metal mobility in other freshwater
sediments: a comparison ...................................................................
80
4.4.1 Major rivers of Germany: Rhine, Main, Weser, and
Elbe ....................................................................................
80
4.4.2 Lake Constance.(Uttwil) ....................................................
92
4.4.3 Mobility of heavy metals in Lean River, P. R. China .......
93
9 4.4.4 Early diagenesis in the Moscow and Oka River, Russia ....
96
4.5 Comparison of the early diagenesis in freshwater and marine
sediments ..........................................................................................
100
5 Conclusions ....................................................................................................
101
6 References ......................................................................................................
103
4.1.10 Sinks or sources of sediments for bromine ......................
51
4.2 Distribution of heavy metals between sediments and porewater .....
54
4.2.1 Copper ................................................................................
54
4.2.2 Cadmium ...........................................................................
58
4.2.3 Lead ...................................................................................
60
4.2.4 Zinc ....................................................................................
62
4.2.5 Chromium ..........................................................................
65
4.2.6 Cobalt .................................................................................
69
4.3 Mobilization of heavy metals ...........................................................
72
4.3.1 Metal-sulfide precipitation/dissolution and mobility of
Cd, Zn, Pb and Cu ..............................................................
72
4.3.2 Influence of organic complexes and Fe/Mn redox
processes .............................................................................
76
4.3.3 Degradation of organic matter and the mobility of heavy
metals .................................................................................
77
4.4 Early diagenesis and heavy metal mobility in other freshwater
sediments: a comparison ...................................................................
80
4.4.1 Major rivers of Germany: Rhine, Main, Weser, and
Elbe ....................................................................................
80
4.4.2 Lake Constance.(Uttwil) ....................................................
92
4.4.3 Mobility of heavy metals in Lean River, P. R. China .......
93
9 4.4.4 Early diagenesis in the Moscow and Oka River, Russia ....
96
4.5 Comparison of the early diagenesis in freshwater and marine
sediments ..........................................................................................
100
5 Conclusions ....................................................................................................
101
6 References ......................................................................................................
103