The chemistry, mineralogy, and rates of transport of sediments in the ...

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TABLE 4 . Laboratory estimates of the rate of 0 2 consumption
by sediments from the Harris River . Experiments were
done in triplicate at room temperature (20-22 °C .) in
shaken, sealed bottles in the dark . Air-bubbled
Winnipeg tap water was used . Control bottles (with
no sediment added) were used in the calculation . The
Harris River bank sediment contained 2 .5 mMoles oforganic
carbon per gram of dry sediment .
Concentration of
Added Sediment
Duration of
Incubation
(hr~f -
02 Consumption
(per gram of
sediment per day)
7 .41 g L-1 16 0 .34 mg 02 9 - lday-1
3 .32 60 1 .1
I
4 .86 60 0 .33
3 .97 60 0 .60