I92I. No. II THE STRANDFLAT AND ISOSTAS^ . I27 



To the nurth of Folia Fjord a g^roup of numerous islands, with a 

 submerged platform outside, extend far seawards from the coast of the 

 mainland. It is X'iktcn with its innumerable islets and skerries built up 

 of granite. These islands and platform are probably situated on a con- 

 tinuation of the large folding ridge or anticline on which the Froan Tslands 

 are situated to the southwest [cf. Xansen. 1904, PI. XI]. 



A strandfiat with heights less than 30 metres above sea-level, extends 

 over a great part of Inner \'ikten island. But many small hills rise above 

 the level of the stranrlflat to altitudes of 40 and 50 metres and more, 

 and several greater hills or ridges even to between 100 and 150 metres. 

 On the whole the strandfiat has not been developed to any high degree 

 of maturity on this island and that is still less the case on Outer \Tkten, 

 but the islands to the north: Kalvoi, Borgan. Rodoi. &:c.. are very flat 

 with a conspicuous strandfiat, and only some few isolated hills rise above 

 30 metres. 



It is ol)vious that the general level of the stranrlflat in this region, 

 wherever it has been developed, has a height of less than 30 metres or 

 perhaps nearer 20 metres above sea-level. The area with heights between 

 30 and 60 metres is only a very small part of the low land, and the foot 

 of the hills, surmounting the plane of the strandfiat. mav as a rule be 

 considered to be below 30 metres above the sea. This is still more marked 

 further north along the coast of Helgeland. 



In tliis respect there is a difference between the stranrlflat of these 

 northern regions, and the strandfiat of the Xorwegian west coast further 

 south. For. instance, in the regions of Radoi, Store Sotra, Bomlo Island 

 and Stord Island, &c. the greater part of the low land forming the strand- 

 flat is somewhat higher than 30 metres above sea-level, on Stord Island 

 even higher than 40 metres. In the regions of Karmoi and Stavanger 

 a considerable part of the strandfiat is higher than 30 metres, although 

 a great part of it is about 20 metres high or even less. On Smolen tlie 

 whole strandfiat is less than 30 metres high, to a great extent about 

 20 metres or less. On Froia a great part of the strandfiat is less than 

 30 metres high, but about an ecjual area is between 30 and 60 metres or 

 largely between 30 anrl 40 metres. On Hitteren Island the stranrlflat is 

 largely somewhat higher than 30 metres, though along the northwestern 

 coast of the island a considerable part of it is lower. The many islands 

 north of Froia are lower than 30 metres and largelv about or lower than 

 20 metres, and so are the Froan Islands, where onlv three or four solitary 

 hills on \'æroi, Risoi, aiul Kimna rise to 31, 35, and 49 metres above 

 the sea. 



On the whole the emerged stranrlflat seems consei|uentIv to be some- 

 what lower along the northern part of the Xorwegian coast, north of the 

 Romsdal region, than we have found it to be south of the Sogne Fjord 

 region. 



