Rockall part of the deeply eroded Rockall Igneous Centre that was formed as part of the North Atlantic Igneous Province, approximately 55 million years ago, when the ancient continent of Laurasia was split apart by plate tectonics. Greenland and Europe separated and the northeast Atlantic Ocean was formed between them, eventually leaving Rockall as an isolated islet. The RV "Celtic Explorer" surveyed the Rockall Bank in 2003. The Irish Light Vessel "Granuaile" (the same name as the steamer on the RIA 1896 botany survey) was chartered by the Geological Survey of Ireland, on behalf of the Department of Communications, Marine and
Rockall Bank dispute in almost all matters except defence and foreign affairs. Consequently, their interests in Rockall are represented by Denmark. On their behalf, Denmark claims continental shelf rights in the Hatton-Rockall area. A communiqué issued by the Prime Minister's Office on 7 May 1985 announced the designation of not only the seabed in the immediate vicinity of the Faroes but also a vast area of the Rockall plateau to the south west. The press release which accompanied the communiqué indicated that the legal basis of this designation was the assumption that "the Faroe Islands are part of the microcontinent" formed by the