204 



F RI DT I OK NANSKN. 



M.-N. Kl. 



^'S- 155- Strandllat in Lake Valley, view southwards along the west coast of Wijde Bay. 



August lo, 1912. 



has been at work there too, although not so effectively and perhaps during 

 a shorter time than along the outer and more exposed coast. 



On the north side of Lowe Sound (Nan Mijen's Bay) there is an ex- 

 tensive flat plain corresponding to the strand flat as was mentioned above 

 (p. 192). 



In Ice Fjord there are ol)vious strandfiats in a good manv places, 

 c. g. Cape Erdmann, Cape Boheman, Cape Wocrn, Cape Thordsen, Bjona 

 Haven in Sassen Bay (according to Peach), Advent Point west of Advent 

 Bay, &c. 



As was pointed out by Bertil Hogbom [19 14] there are also narrow 

 submarine platforms outside the shore in several places in Ice Fjord, and 

 they seem to be best developed where the coast is most exposed, c. g. west 

 of Advent Bay, and off Cape Thordsen. \\'est of Cape Boheman there is 

 also a submarine platform with several rocks, the Twin Rocks Szc. 



The Age and Genesis of the Strandflat of Spitsbergen. 



The strandflat of Spitsbergen is obviously a relatively young form- 

 ation. As was previously mentioned (p. 179), and was already pointed out 

 by Hoel [1914, p. 2/], its present very level surface has not been exposed 

 to the erosion of the glaciers of the Great Ice Age, or Ages, which covered 

 the whole land and have deepened and excavated the fjords, and have 

 sculptured the land surface. The present plane or planes of the strandflat 

 have, therefore, been developed after that time. 



On the other hand there has been a considerable advance of the 

 glaciers after their formation, as is proved by the erratic blocks, mentioned 

 bv Hoel and Peach, and bv the moraine material found on the surface 



