Lower Cretaceous seismic stratigraphy and fault movement in the Celtic Sea Basin, Ireland

The Celtic Sea region encompasses a series of basins and sub-basins lying off the south coast of Ireland, and extending into UK-designated areas (Fig. I). The major basins are the North and South Celtic Sea basins, which are separated by a long-standing basement high, the Fastnet Basin and the Cockburn Basin. A number of recent publications have outlined the regional geological development of the area (Naylor and Shannon 1982; Tucker and Arter 1987; van Hoorn 1987; Ziegier 1987; Shannon 1991a, b, c). The present study is confined to a small area located on the westernmost limb of the North Celtic Sea Basin, and north of the Fastnet Basin (Fig. I).