Bouguer Anomaly Map of the North Celtic Sea and Entrance to the Bristol Channel

Summary Gravity data in the North Celtic Sea and entrance to the Bristol Channel are presented in the form of a Bouguer anomaly contour map. The major feature shown by the map is the presence of two E. N. E.-W. S. W. trending gravity lows, one just off the southern Irish coast and the other starting from the entrance to the Bristol Channel. It is suggested that these are caused by basins containing low density sediments and simple models for these basins, involving a single density contrast, have been computed.