Fig. 119. Lüw land un .soulli-wosUrn cml ol Landigodc Island, witli stranddat on small 



islands outside. (Sept. 9, 1912). 



The .suhnuT.^iMl stramltlal roinnl the- inlands has no threat extent 

 aloii^- northciii Mcl,i;elanfl ami the coast to the north, anrj it rajii'lly 

 dimishes in width northwards towards \'cst h'jord, forming only a nar- 

 row strip alon.t;- the coast of tlie mainland, and small ])latforms round the 

 island-s^roups out in the sea. 



Its surface is on the whole une\-en anrl irregular anrl has much the 

 same type as that of the southern part of the Træna Plateau. There may, 

 however, be some difference: All the submers;ed plateaus with small 

 island-groups built up of <j;ranite have very une\en surfaces, dissected by 

 numerous channels and depressions, and especially far out to sea their 

 surfaces are slopini;' outward towards the dee]X'r sea on the sides without 

 an\- sharply defined edi^e, anrl the depths of the plateaus vary much, so 

 that it is difficult to find any si)ecial depth which mi^-ht be said to 

 indicate the levels of their initial planes. Outside these plateaus of 

 granite there are also as a rule a great many isolated small shoals standing 

 at various flepths anrl indicating no definite ])lanc. As examples of sub- 

 merged granite plateaus of the above kind may be mentioned the plateaus 

 of Mykcn, Valvar, and Skjarrar, northwest of Træna, with numerous 

 isolated shoals, and the plateaus of Rorstapvar and Gronna far out to sea 

 in about 66^ 54' to 67^' 3' N. T.at. and 13- 3' to 13" 18' E. Long, with very 

 typical surfaces. Some parts of the submerged surface of these plateaus 

 stand very near present sea-level with numerous shoals and rocks almost 

 in the water surface or only some metres below it. One might get the 

 impression that a plane has been cut approximately at this level, but then 

 the ground slopes outward on all sides without any marked edge, and 

 this makes it extremely difficult to decide what the depth of the level 

 actually is. In manv cases the surfaces of the plateaus slope more gradually 

 outwards on their outer, seaward side than on their inner, landward side, 

 where there may even sometimes be more of a well marked edge. This 

 might seem to indicate that the surfaces of these granite plateaus have 

 been eroded to some extent bv the wave action, wliicli has lowered their 

 initial levels and made them more sloping. 



It is very characteristic that the submerged plateau of Fiigloirar 

 (consisting of granite) in 67"3'N.Lat. and 13^' 36' E. Long, has the 

 typical outward sloping surface of a granite plateau, while Fleiiiz'a'r only 

 6 kilometres to the northeast which is built up chiefly of crystalline lime- 



