Age and structure of the southern Rockall Trough: New evidence

Details Age and structure of the southern Rockall Trough: New evidence Age and structure of the southern Rockall Trough: New evidence

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981e%26psl..52..115r&link_type=abstract

Earth and Planetary Science Letters, Volume 52, Issue 1, p. 115-128.

Physics

17

Scientific paper

The Rockall Trough separates the Rockall Plateau microcontinent from the shelf and slope west of the British Isles. The structure and age of the trough has been the source of considerable discussion. Although widely considered to be of oceanic origin, postulated ages for the spreading range from Permian to Cretaceous. New seismic profiles linked to the IPOD sites in the Bay of Biscay and to oceanic anomalies of known age are used to present a new assessment of the age and structure of the southern Rockall Trough. It is concluded that about 120 km of ocean crust is present in the trough and that spreading took place in the Albian-Maastrichtian interval.

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