1-50 Dr. Berger on the Geijlogical Features 



The colour of this sandstone is reddish or greyish ; its texture is 

 either conglomerate, including fragments of greywacke slate, or 

 finely granular, composed of quartzose grains imbedded in a cement, 

 sometimes calcareous and sometimes siliceous. The greenstone 

 which caps this hill differs very slightly from that associated with 

 the floetz trap. 



Lord Londonderry has caused this formation to be bored to the 

 depth of 500 feet in the fruitless search for coal on the east side of 

 Strangford lough near Mount Stewart ; if to this depth the height 

 of the sandstone on Scabro hill be added, it will give from 800 to 

 900 feet as the known thickness of this formation. The greatest 

 length of this district of sandstone does not exceed six or seven 

 English miles. It appears to rest upon greywacke.* 



The tract of this formation between the bays of Cushendall and 

 Cushendon, is yet more limited than the preceding. On the coast 

 it occupies a line of between three and four English miles, and 

 extends about the same distance in an inland direction. The 

 highest point of the cliffs on the coast in this range is only 124 

 feet J but the hill of which they form the escarpment rises at 

 Jeaveragh near Cushendall church to the height of 522 feet : this 

 is the greatest elevation which the sandstone of this district attains. 



The strata dip into the sea towards the E.S.E. under an angle of 

 about 32". In the bay of Cushendon several caverns of considerable 

 magnitude occur in this rock. 



The general character of this formation is that of a conglomerate ; 

 it passes however into a coarsely granular texture, and in one place 

 (the Red bay of Cushendall) into a finely granular : its colours 

 vary from red to grey. 



* The arrangement of the sandstone formations in the north-east counties of Ireland, 

 ^rms the most difficult problem presented by their geological relations. The sandstone 



