Quart Journ. Geol Soc. Vol LIE 7 
GEOLOGICAL SKETCH-MAP 7 ort Le r 
OF THE \ 
ISLAND OF GUERNSEY. 
TLE Granite. 
===) Hornblende Gabbro (‘Birdseye’) 
Diorites and, Syerutes. 
7 Nea & 
hal 
i Reem 
Petit Fort Bay 
ioe 
ee g “s 
