180
Fig. 7.8. Schematic flow diagram illustrating the relationships among the major components of the model. Note 02
respir. includes suboxic processes such as nitrate and metal
oxide reduction as well as oxic
respiration (redrawn from
Morse and Berner 1995)
J. W.Morse
~
~
•
~I~i~
/
~
~;5
Fig. 7.9. The log-log depend -
0 r-r--o"---.-----r-----r---r-r---.-,----.---,--,--,---,---.--.--.--.---,
ence of fsp on sediment burial
rate in the Gulf of Mexico. The
circled data point was not used
in curve fitting or computations, as it is believed to represent slumped sediment from
the upslope. The line is a linear
least squares fit to data (after
Morse and Berner 1995)
-1
...
..... '"
C\ -2
..Q
-3
•
•
-4 L I _L_L-L~~~~~~~L-~~~~~~-L_L_L~
-3
-2
-1
o
log sed rate (em yrl)
question involving the reaction kinetics between dissolved sulphide and various iron
oxides (e.g. Canfield 1988, 1989). It now can be argued that in sediments where dis-