1898-1902. No. 36.] SUMMARY OF GEOLOGICAL RESULTS. 



As a general statement it may be said that the Pre-Cambrian igneous 

 rocks of Eastern Ellesrnere Land and the Foulke Fjord region of Green- 

 land contain basic, intermediate and more acid representatives of a series 

 very characteristic by its content oEortho rhombic pyroxene 

 (broncite or hypersthene). We have the basic type: norite, the inter- 

 mediate: broncite- (hypersthene-) quartz diorite, also hanatite and hyper- 

 sthene-quartz-potash-syenite, and finally the more acid: broncite- (hyper- 

 sthene-) adarnellite. 



In the Pre-Cambrian in the Havnefjord district, veins of diorite-por- 

 phyrite occur, which BUGGE has found to be rather similar to rocks that 

 SCHEI has brought from mesozoic series in Eureka Sound and other 

 districts of the far North-West, and which he accordingly thinks may 

 also be of relatively young age. Furthermore, this diorite-porphyrite seems 

 to be related to the plutonic rocks just mentioned, and BUGGE asks the 

 question whether also these may not be younger than Pre-Cambrian. 

 As far as the present author can see from SGHEI'S notes and photographs, 

 such a thing is out of the question. The upper surface of the igneous 

 rocks mentioned is, wherever it appears, a surface of erosion, a peneplain 

 upon which the younger sediments were deposited (see pi II, fig. 1), and 

 not an upper surface of an intrusive body. The younger igneous masses 

 are all hypabyssal or volcanic rocks, and occur in the above mentioned 

 districts in relatively very small quantities. In the Havnefjord district 

 they are not mentioned at all by SCHEI. 



Paleozoic. 



The paleozoic sedimentary rocks resting directly on the Pre-Cambrian 

 base levelled surface, are nicely seen in different districts of Ellesmereland 



J 



and vicinity, both in the Smith Sound- and Jones Sound regions. 



At Reindeer Point, on the north side of Foulke Fjord (see fig. 1 page 18) 

 the boundary between the Pre-Cambrian plutonic rocks and the over- 

 lying sandstone, of which the lower part is red, the upper whitish, is 

 seen about 100 m. above sea-level. On the sandstone, which has a visible 

 thickness of 120 150 m. rests diabase. 



The paleozoic deposits in the region of the Bache Peninsula have 

 been treated in a paper by the present author, no. 28 of this report. 1 

 At Cape Camperdown SCHEI found, resting on the Pre-Cambrian, beds of 

 coarse sandstone with intrusive diabase, and higher up shales and 



1 The Cambro-Ordovician beds of Bache Peninsula and neighbouring regions 

 of Ellesmereland. Kristiania, 1913. 



