﻿690 SUMMARY OF THE CONTENTS. 



land must have sunk nearly to the maximum of submergence 

 as early as during the third station of the ice-border, in the 

 upper part of the Kristiania valley. 



The chapter now tries to prove, that the maximum of sub- 

 sidence has occurred during the resting of the ice border at the 

 fifth, the epiglacial station. This is proved by the fact that no 

 marine deposits have been found behind the epiglacial moraines. 



It is therefore obvious that the filling with the land-ice has 

 prevented the ocean-water from passing over the dams formed 

 by the epiglacial moraines, as long as the land had sunk to the 

 maximum; and afterwards during the rise of the land, as the 

 land-ice behind the epiglacial moraines began to melt, the mo- 

 raines, like veritable dams, must have transformed the valleys 

 behind them into fresh-water lakes. The so-called „relict- 

 forms" also (see pp. 192, 193) prove nothing that is at variance 

 with this explanation; they are brackish-water forms, which 

 have probably swum up to th^ lakes while the difference of level 

 hefore and heltind the dams was still proportionally small. 



Mjøsen and probably also the other epiglacial lakes have 

 thus not been fjords during the epiglacial time. And the rise 

 of the land must have begun during the stopping of the land-ice 

 border at the epiglacial stage. 



Pp. 196 — 205. Summary of the Subsidence. 



A retrospective glance at the change of level and climate 

 during and after the time of the last ice-sheet shows the follow- 

 ing facts. 



At the end of the last inierglacial time, the land has pro- 

 bably been uplifted some hundred metres higher, than it is at 

 present. This uplift has probably then continued during the last 

 ice-covering, which, along the southern coast of Norway, must 

 have reached to the extreme limit of the land. Perhaps at this 

 time an enormous glacier has filled the Norwegian channel to 

 its proportionally shallow part outside the Bømmelfjord and the 

 Boknfjord.- 



