28 "Pentti Eskola. | (LX 
they are numerous is the east shore of the Tshivirkouy Bay. | 
In the following I shall quote some AN my notes Ponge 
their occurence. 
At point 8 is exposed a nearly massive amphibolite cut 2 
by several intrusions (fig. 5). The oldest are schlieric granite 
intrusions tending to give the whole an aspect of ader-gneiss, 
and are no doubt to be parallelized to those intrusions which 
Fig. 5. Many intrusions in amphibolite. SE-shore 
of Sviatoy Noss. Photo P. Eskola. 
in more distinctly schistose rocks have given rise to ader- 
gneiss. This migmatite has been intersected by a dark dike 
rich in amphibole, seen at the left hand side in the figure. 
Thereafter followed intrusions of aplite cutting all the above- 
named rocks and forming a composite dike with the older 
dark dike-rock. Then another intrusion of dark hornblende- 
biotite-rock followed cutting one of the large aplite dikes 
(in the middle part of the figure). At last still narrow dikes 
and veins of aplite were intruded. Thus no less than five 
generations of dikes and veins can be traced at this place. 
