16 



as the dykes in Scoresby Sound. Others are still more altered, 

 and porphyrites of rather different appearance also occur. 



Lastly, amphibolites are also met with among the specimens, 

 but no opinion can be formed of their geological appearance 

 from the material in hand. 



From the district between lat. 69° 25' and 65° N. traversed 

 by Lieut. Amdrup in the summer of 1900 there are no spe- 

 cimens, but from the short preliminary report M it occurs, that 

 the southern part of this district, up to lat. 68° N., consists 

 of the same rocks that are found in the neighbourhood of 

 Nuahk, viz. Archœan rocks with greenstone-dykes, the latter in 

 so great number that they almost surpass the former in mass. 

 To the north and east of the great fjord Kangerdlugsuak 

 basalts begin, which afterwards form a continuous mass all the 

 way up to Scoresby Sound. 



1) Geogr. Tidsskr. 1901—02, p. 34. 



