ARCHIV FOR MATHEMATIK OG NATÜRVIDEN8KAB. B. XXII. Nr. 8. 



A glacial deposit near Christiania. 



By 



p. A. Øyen. 



Nearly in the true line south of Christiania, we go by 

 train thirty two kilomètres, and stop at the railway-station 

 of Aas. Here we find a narrow path leading in a northwesterly 

 direction through the forest, and within one kilomètre from 

 the railway-station passing the cottage of Frydenhaug, which 

 is built upon a deposit of clay, gravel and sand, the origin 

 of which was formerly regarded to be that of an ordinary 

 moraine. Moreover, this opinion has been held even by 

 geologists of our own time, with the exception only that the 

 moraine is regarded to be a submarine one. 



I am not on this occasion to enter into detail as to 

 the origin of this curious and highly interesting deposit. 

 This is a problem to be solved on a more extensive base 

 than that of the present paper. I shall only add, that there 

 are clear evidences of fluvioglacial waters having in many 

 places considerably influenced the deposition of this subaque- 

 ous moraine. 



Close by, to the west of the cottage of Frydenhaug, 

 there has, in the course of years, been opened several gravel- 

 pits to utilize the gravel for practical purposes. In one of 



