Table 1. Physical characteristics of the carbonate chimneys 

 recovered from the outer continental shelf off northern 

 Oregon. Dimensions given in metric system (m and cm) and 

 weight in English system (lb). 



Characteristic 



Chimney #l(a) Chimney #2 (b) Chimney #3(c) Shelf Chimney (d) Edifice (e) 



(a-c) from Schroeder et al., 1987 



(d-e) this study 



* Geological Society of America color chart 



** In vent holes 



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