I TO 



FRIDTJOF NANSEN. 



M.-X. Kl. 



K o L s å- s 



fltiilcum 



Rhomè- and EsSijiLtxi-Poi^phl/i-l^ \Y''..'y.-^ Dci^ofLLuH SaJlcUton 



^^---^-^^y^^--- Os 



I 

 SUu-tUui HcJtLsCs iifCU, I 



Fig. [03. Profile across the inner end of Christiania 



indications of a strandfiat formed by the islands of Tldjernet (seen in the 

 picture) and Steilene at the fof)t of the steep mountain side (cf. Fig. 102). 



This plane cannot, in my opinion, have been finallv formed bv sub- 

 aerial denudation, and still less by glacial erosion. These processes would 

 have made the general surface of this land more sloping or more bowl- 

 shaped. The plane must have been finallv levelled by marine denudation, 

 /. c. shore-erosion by frost, in a similar manner as we have seen (p. 37) 

 that shore-ledges have been formed at present sea-level in postglacial time 

 in this same region. 



The shore-erosion has found very favourable conditions for work in 

 this region of easily crumbling argilaceous schist, dissected bv glacial 

 erosion into numerous islands, peninsulas, and points with a verv long 

 shore-line for attack. It is therefore not surprising that, although the 

 inner part of Christiania Fjord was probablv filled bv glaciers during 

 the greater part of the various glacial epochs, there has still been time 

 enough for the shore-erosion to cut this plane, extended over so wide an 

 area, in a low dissected land where there was only a comparatively small 

 (|uantity of easily crumbling reck to remove in order to level the surface 

 down to sea-level. 



The plane thus formed has afterwards been eroded bv the glaciers 

 of the last glacial period which have denuded more or less the weaker 

 parts of the rocky surface, while the more resistant parts have b?en less 

 affected and form ridges largely going in the direction of the strike of the 

 folded schists. The fairly flat summits of these ridges have to a great 

 extent nearly uniform heights of between 20 and 30 metres above sea- 

 level. In some places, especially on Snaroi, Ostoi, Bronnoi, and Xesøi 

 (see the white spots in Fig. 102) they rise above 30 metres, and only in 

 a few cases they rise to 40 and 50 metres. 



^ 



