- 95 - 



at least oft the eaatexm aM aouthern ooasts, ere the 

 remilt of sulMsieirial erosioa »t the end of the Pliocene 

 epooh, when the shelf w&b ha rod out. to t«;het is now 

 the iS»9-fathoa depth ounr^. Off tho nortiiern and west- 

 ern coasts I'ertiary and v;3iateri3yGtry faulting have undouht- 

 edly l^en responsible for socaa of the depth of the valleys* 



d« The island ah^lf off ths southeastern and 

 southersL coasts is probe hly hounded elone th© outer edjse 

 by a zone of Suiting or d«wawirpii^* 



