fig. 35 – simplified sketch of the claims on the Continental Shelf of the Rockall Plateau by the United Kingdom (green), Ireland (yellow), Iceland (red) and Denmark (for Faeroes; purple). In 1988, the United Kingdom signed the Continental Shelf Agreement with Ireland, and their common boundaries of the shelf are delimited – the yellow-green ‘staircase’ line (according to the Icelandic serer Utanríkisráðuneytið)