RECENT STUDIES IN THE GEOLOGY OF THE FAEROES 



31 



In the i'ollowing, 1 shall try to give a brief account of the geological develop- 

 ment of the Faeroes, based upon a purely schematic cut through the whole 

 sequence of rock layers and on surface map sections of some significant 

 localities. 



THE LOWER BASALT SEQUENCE 



In all probability the volcanic activity started with large fissure eruptions, 

 and this phase is represented by a basalt series nearly 1000 m thick and petro- 

 graphically very uniform, referred to below as the Lower Basalt sequence. 



Fig. I. Schematic cut through the Faeroean sequence: Lower Basah sequence. 

 Upper Basalt sequence (lower zone), and Upper Basalt sequence (upper zone). 

 Black: Coal-bearing series; dotted: Tuff-Agglomerate zone; white: intrusions. 



The Lower Basalt sequence, the oldest stratum, is exposed on Suduroy, 

 Mykines, and Vagar beneath the Coal-bearing series (Figs. 1 and 2). As the 

 dip on Suduroy is 3°-6° NNE., NE., and ENE., on Mykines 8^-13° ESE. and 



