■ Barium levels were elevated in the sediments up to 1.5 km from the 

 wellsite. Chromium and vanadium sediment concentration's were not 

 elevated, even at the wellsite. 



■ Sediments in the canyon are less sandy and more variable in 

 composition than those on the shelf. 



COMMENT 



Bothner observed that the anomalously high rate of sediment collection in 

 traps from the canyon axis may have been real as it is only about seven times 

 those measured in the axis of Lydonia Canyon. The rate of sediment collection 

 in traps 5 mab in Lydonia Canyon were 10 times higher during periods of strong 

 currents than during quiescent periods. 



31 



