118 



Alfred C. Redfield 



Over the sill, and on its seaward slope, there appears to be a zone of eflfective mixing, 

 in which the surface water from the Bay mingles with the Caribbean water from the 

 Outer Gulf. In this zone the salinity increases from 30 to >35°J^^ and does not vary 

 greatly with depth. On one side this mixing zone produces the bottom water of 



SW 5238 5237 5236 NE 



NW 5253 



5252 



5251 



5250 



5249 



5248 S E 



10 



20 - 



' 40 



60 



70 



80 



90 - 



100 



10 



2 

 2 30 



X 



lu 



■40 - 



60 



, SW 5254 5255 5256 NE 



20 



30 - 



40 



o 50 



70 - 



80 



NW 5243 



5244 



5245 



5246 



5247 SE 



N 5242 5241 5240 5239 S 



in 10 



DC 



20 



o 30 



40 



SALINITY , 7oo 



Fig. 3. Distribution of salinity in Sections 1-V, Gulf of Venezuela. See Fig. 2 for positions 



