126 Frof. A. E. NordensUbld — Geology of Spitzhergen, 







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In Ice and Bell Sounds diabase is found at 

 the following places : 



1. Bell Sound. — Eight opposite Axel's Islands, 

 on the north shore of von Mijen Bay. A stratum 

 of considerable thickness in the Mountain Lime- 

 stone formation occurring here. 



Inner j)art of Beclierche Bay. — On an isolated 

 mountain, on which the French Expedition 

 erected its observatory, hence called Observatory 

 Mountain, delineated in the Atlas of the Expe- 

 dition. 



2. Ice Sound. — Tlie Mgh ridge off Cape 8ta- 

 ratsdiin. Three thick strata, which are quite 

 conformably interstratified with fossiliferous 

 beds of Mountain Limestone. 



The Entrance to Sassen Bay. — An isolated 

 . v^ /'-y-Am r^ Q CO rocky hill of inconsiderable height on the south 



^/T^l+i ^ • 'f ^^^^ ^^ ^^^^ entrance. 



Gip's IToolc. — A diabase stratum here forms 

 c| ^ the slopes at the foot of Gip's Hook. 



The Goose Islands off Gip's Hoolc. — Probably 

 a continuation of the same stratum. 



Cape Thordsen. — On this promontory the 

 diabase occurs in many places, partly as rocky 

 hills without admixture, partly as thick and 

 parallel strata, and at some places also as true 

 veins. The manner of its occurrence may be 

 seen in the accompanying profile. (Eig. 12.) 



Unfortunately the mountain sides in this pro- 

 file are so covered up with gravel that I cannot 

 make out with certainty whether the diabase on 

 the mountains a and h only forms a stratum, or 

 if it there takes up the whole mountain. At 3 

 the underlying slate beds are covered by a dia- 

 base stratum, which, however, is at most places 

 so completely split up on the surface that it has 

 been changed to a collection of stone heaps. At 

 4, in the neighbourhood of the sea-shore, there 

 occurs a well-marked vein surrounded by its 

 matrix. It here intersects, without in any great 

 degree disturbing the lie of the neighbouring 

 strata, several grey marl beds, jDrobably belong- 

 ing to the Mountain Limestone. The diabase 

 occurs very beautifully stratified round Eein- 

 deer Yalle}'-, where it forms two regular strata, 

 of which the one, with a thickness of about nine 

 metres, at a height of about 200 to 300 metres, 

 forms on the mountain a shelf, with precipitous 

 sides ; the other is formed in the same regular way, parallel with 

 the former and several hundred feet higher. Von Drasche has given 



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