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can be no doubt that they belong to the same eruptive series 

 of rocks rich in alkali. 



On the other hand, I do not dare to express an opinion 

 as to the connection with the rock from Liverpool Land. A 

 certain relationship is undeniably present, but when we see, 

 for instance, in Scandinavia how the eruptions of alkaliferous 

 magma have taken place during different periods, and that it 

 is not possible to directly compare with regard to their age 

 the various occurrences in, let us say, the area of Christiania, 

 Alnön, Ragunda, etc., I, for my part, prefer to describe these 

 groups of occurrences apart from each other. 



1. The Ëruptifes of the €. Hetcher Series. Canning Peninsula 

 is only known to us through the short landing that the Ex- 

 pedition made at C. Fletcher. The series of probably paleozoic 

 sedimentary rocks that we have here has already been de- 

 scribed by me. Down by the shore we can see how these are 

 interspersed with several broad dikes, consisting for the most 

 part of a grey granite-porphyry with large, red orthoclase eyes 

 and smaller, porphyritic phenocrysts of green plagioclase. Very 

 closely connected with this rock — as far as I could see, passing 

 over into it in the same dike — is a red porphyry, obviously 

 more basic than the former, with which we may connect the 

 fact that it is rich in dark, basic enclosures of varying appearance 

 and texture, which point to a strong differentiation in the 

 original magma. 



Somewhat further from our landing-place the rocky wall 

 rises steeply to a height of about 600 m. Already from a 

 distance can be seen, some way up the cliff, a huge, lenticular 

 mass in the shape of an intervening layer of porphyritic eruptive 

 rocks, which have undoubtedly intruded into the sedimentary 

 beds. I had no time to make the ascents that would have 

 been necessary in order to closely examine this mass in place 

 and at its contacts, but i managed to collect a large material 



