157 



calities will be found in the words of Hochstetter and Bay; 

 a comprehensive jreological map of the wliole littoral was pub- 

 lished after our return (1901) by Nathorst^. This latter is 

 in several respects supplemented by the results of the Am- 

 drup -Hartz Expedition and therefor I have considered it 

 useful that a new general geological map of the district should 

 be appended to this paper to which I refer in the following 

 pages. 



To the best of our knowledge, the whole interior of Green- 

 land in this region is composed of a mighty mass of primary 

 rock, broadly speaking quite monotonous, though in detail, as 

 far as 1 know it, built up of a richly varied series of gneisses 

 and other crystalline schists. All the large fjords extend with 

 iheir inner branches into this district, most of which is, as far 

 as we know, covered by a mass of inland-ice. 



Oulside this central mass lies a coast-belt of varying 

 breadth — averaging from about 50 to 70 Eng. miles — con- 

 sisting of a rich alternation of greatly divergent rocks, chiefly 

 of more recent formation. One would be inclined to think 

 that these rocks constitute the remnants of a huge, sunken 

 area, the central mass remaining as a vast "Horst"; but this 

 view is scarcely borne out at present by the observations taken 

 though by this I will not deny that a great part of the rocks 

 of the littoral zone may owe their present state to dislocation. 



In this coast-belt can be distinguished, from S. to N., four 

 sections, each about 2 degrees of latitude in length. The two 



Foren, i Stockholm förh. XXIII (1901): 275 (with pétrographie descrip- 

 tions by H. Üackström). 



О Norden skjold: Notes on some specimens of rocks collected 



on the Kast coast of Greenland between lat. 65° З-У and 67° 22' N. 



Meddelelser om Grønland XXVIII: 1. 

 M The geological map published by 0. B. Bøggild in his paper "on the 

 samples of the sea-floor", Meddelelser om Grønland XXVIII: 17, must 

 be regarded as founded exclusively on this older map, as on account 

 of m> abcence in the South Polar regions no results of this last ex- 

 pedition could be included. 



