78 



KIDIjf)!'' NANSKN. 



M.-N. Kl. 



P'ig. 52. Strandflat at Salluis north of Ik-rgcn. «Aug. 14, 191 1). 



(Icmiflatioii altitiulc slopes j^cntly towards NW, or from 45 — 50 m. at 

 Sælxifjcll to 25 — 30 m." ill the nortli-w estern part of tlie island. 



He furthermore considers it indisi)iitahle that the denudation surface 

 at 20 — 25 111. above sea-level on Hjelmen (or Sæloi, Fig. 21, no. 63) in 

 Oigaren outside Radoi "corresponds to the upper level on Manger The 

 slope which this level proves to have at Manger thus continues as far 

 out as Oigaren". 



Although this denudation surface may have a slight slope, especially 

 on extensive islands, I do not ])elieve that this slope can be as great as 

 assumed by Ahlmann. The reason why he finds the heights greater in the 

 region of Sæbo is obviously because the labradorite rocks of this region 

 are more resistant to the erosion than the gneiss in the other parts of the 

 island. The strandflat has not therefore been developed to such a degree 

 of maturity, and more hills and ridges rise to higher altitudes. 



On Holsenøi, at Gjernes (Fig. 21, no. 73). just opposite the Sæbo 

 region, he says himself that inside a hill quite near the shore "there ex- 

 tends a well-marked denudation plain at 25 — 30 m. above sea-level". 

 Hence, according to his own measurements, the height of this surface is 

 no higher here than in the Manger region, on the contrary it seems to be 

 8 or 10 metres lower, or very much the same as the average altitude 

 he found in his most north-western profile across Radoi, in the Bo region 

 where it was between 24 and 30 metres above sea-level. 



On the other hand it may be noticed that, occording to my ob- 

 servations, the general level of Feie, Fosenoi, and the north-western end 

 of Radoi is probably somewhat less than 20 metres, or about 17 metres. 



•åjR'»^- „.. 



Létal 



f'R- 53- Strandtlat on the southwestern end of Fane Peninsula and the island 



