18 



OLAF HOLTEDAHL. 



[SEC. ARCT. EXP. FRAM 



diabases found in the mesozoic strata of Eureka Sound (see BUGGE 1. c., 

 p. 33). Here are found two types, one containing quartz and micropeg- 

 matite, the other not. Probably also the relatively coarsely crystalline 

 diabases found in the basal part of the paleozoic deposits at Cape Cam- 

 perdown in Bache Peninsula, Reindeer Point in Foulke Fjord and at 

 Fram Fjord in Jones Sound, are of the same age. SCHEI distinctly 

 emphasizes the fact that the intrusions have especially appeared along 

 two lines, Smith and Eureka Sounds. While the thickness of the diabase 







****.* 



\ 



*$&. \ 



Pre-Cambrian igneous rocks. 



Fig 1. Faulted district on the north side of Foulkefjord in Greenland. 

 Sketch taken from SCHEI'S diary. 



at Cape Camperdown is 100 m., it decreases farther to the west, and at 

 the inner end of Flagler Fjord the diabases are not at all developed. 

 At Lands Lokk at the extreme west of Grant Land were found lavas, 

 (see BUGGE, p. 35) and these lava beds were crossed by veins of diorite- 

 porphyrite, a variety of rock that was also found farther to the south- 

 east in Nansen Sound, as well as to the south-west in Ringnes Island. 

 Contemporaneous with the great igneous activity in the Post-Triassic 

 but Pre-Miocene time, occurred the majority of crust movements that 

 have taken place in Ellesmereland since Pre-Cambrian time. Of these 

 SCHEI in his preliminary report (p. 6) has given a short sketch which 

 follows below : 



