177 



Seaforth a coarse, yellowish sandstone crops out, with pebbles 

 of quartz and of a green slaty rock, up to a centimetre in length. 

 It does not look, therefore, as if the division of the series on 

 purely petrographical lines was possible. Also in Pingel's Dale 

 at the S. E. corner of the fjord, at 300 m. above the sea-level, 

 a dark-green, lustrous schist, not unlike the one from Cape 

 Brown, was found by Hartz. At 380 m. a fairly coarse, light 

 sandstone with intervening layers of schists cropped out, and 

 at 570 m. a red, non-lustrous, thinly laminated rock was met 

 with. It was in blocks of sandstone schists from this series 

 that the best preserved fossils were found. And still higher 

 up, at circa 800 — 900 m., Koch found a black, bitumenous or 

 (in other layers) a greenish schist, partly also a reddish con- 

 glomerate that recalls very closely what is described below from 

 Vargudden in Hurry Inlet. The rock is loose, the intermediate 

 mass is very calcareous and contains numerous rounded mineral 

 grains which, however, are frequently combined so as to show 

 that they derive from older rocks, as well as true rock-fragments, 

 among which some that derive from porphyritic surface rocks. 

 To decide from the single sample I saw whether the rock is 

 related to the similar conglomerates from Cape Brown and 

 Hurry Inlet, is of course impossible, but a suggestion as to 

 how the order of the strata may ultimalety be settled is con- 

 tained in the similarity just pointed out. 



Almost at the same spot, close to the shore, in a little 

 river, I came across several blocks of a curious limestone, 

 which both at the surface of the cleft and, as it seems, in 

 connection with concretionary formations, contains a fairly rich 

 quantity of a dark metallically lustrous copper mineral, according 

 to the determination of Böggild cuprite (red copper-ore), and 

 interesting as being the first occurrence of this mineral in 

 Greenland. Green, malachitish disintegration products give the 

 rock a striking appearance. 



XXVIII. 12 



