FRESH OIL 



hk 



UjlAdU-uJM^vA. 



i^w*XaAj-JL- 



8h WEATHERING 



li 



jMJwmXiJL. 



48 h WEATHERING 



L i _JLkAiLujW-ujMOi'L 



o*u 



JJ 



L_*Ji 



LJL-JL 



44 d AMOCO -CADIZ MOUSSE 



L 



jlJJL-LUl 



Figure 9. Gas chromatograms of saturate fraction of light Arabian crude 

 oils and Amoco Cadiz mousse. 



Table 7 shows the effect of the addition of 5% and 25% mousse (v/v) 

 on sulfate reduction in sediments from the oiled and unoiled site at 

 He Grande. A slight inhibition of sulfate reduction rate was observed 

 at the control site, while a slight stimulation was observed at the 

 oiled site. These rates, however, were not significantly different 

 from the unoiled controls (p ^ 0.08). No significant differences in 

 methane production between control sediments and sediments treated with 



178 



