This book presents one of the first 3D sequence-stratigraphy interpretations of the Cretaceous sequence in the Porcupine basin, offshore Ireland. This interpretation is based on a seismic dataset acquired from the NW margin of the Porcupine basin. This work includes a literature review, attribute extraction, and a basinward analysis of a set of high amplitude anomalies, along with a complete description of the methodology used for this research. In addition to improving understanding of the evolution of the basin during the Cretaceous, this work also correlates high amplitude anomalies with the interpreted stratigraphic framework, both in the structural domain and the time domain (Wheeler diagram). The book offers an enhanced insight into the deposition of sediment in the basin, and it presents new perspectives about the geological and stratigraphic interpretation of the basin’s history.