The AMC-4 cores appear dominated by well mixed AMOCO oil through- 

 out the 0-20 cm depths. Lesser amounts of pyrogenic PAH vis-a-vis the 

 Aber and marsh sediments are due to the sandy nature of the AMC-4 

 samples. A new large input of oil is seen in August 1979 resulting in 

 some down-core concentration variation. 



Chemical descriptions of the "control" site cores are shown in 

 Figure 3.63. Note that non-petroleum PAH are widely observed in these 

 sediments and that non-AMOCO CADIZ-impacted sediments contain 

 50-300 ppm of chronic hydrocarbon pollutants. 



200 400 " 8/| 600 800 



Arositle* 



Saluratas - 20 



UK ISO - 



1.0 



1.5 2.0 



ALK ISO 



200 



jo g 



400 600 



\ 



Aromalics 



- Saturates 



ALK ISO 



50 1.0 150 



ALK ISO 



ng g 

 1000 2000 



200 



400 ut ' 3000 5000. 40000 





10 

 1 . 



20- 



P 



-0BT 

 202 228 252 



10 



20 



Aromalics 



Salurilis 

 ALK ISO 



0.50 1.0 1.50 2.0 



ALK ISO 



FIGURE 3.59. 



FIGURE 3.60. 



FIGURE 3.61. 



FIGURE 3.62. 



(Upper left) AMC-4 core, December 1978. 

 (Upper right) AMC-4 core, March 1979. 

 (Lower left) AMC-4 core, March 1979. 

 (Lower right) AMC-4 core, August 1979. 



78 



