no 



PRINCIPLES OF STRATIGRAPHY 



has a maximum depth of 228 meters in one spot, but otherwise is 

 less than 200 meters deep ; while the maximum depth of the Baltic 

 is 249 meters east of Gotland, that of the Bothnian Gulf 294 meters- 



Fig. 18. Bathynietric chart of the Arctic Ocean. The deepest shade (solid) 

 shows depths below 3,000 meters; the next (cross-hatching) be- 

 tween 3,000 and 1,000 meters; the next Hghter (horizontal lining) 

 shows depths between 1,000 and 200 meters, while the white 

 color shows everything above the 200-meter line, including the 

 lands. The character of East Greenland mediterraneans and the 

 location of the Wyville-Thomson Faroe-Iceland and Denmark- 

 Strait ridges is recognizable. The dotted circle is the Arctic circle. 

 (After Nansen and Haug.) 



opposite Hernosand, Sweden, and that of the Finnish Gulf 124 

 meters near its mouth. In each case these maxima lie in small 

 depressions below the main floor of the water body. The deeper 

 portions of the main floor of the Baltic average 150 to 170 meters, 



