Giant Carbonate Mounds and Current-Swept Seafloors on the Slopes of the Southern Rockall Trough

Abstract

Large mounds in the northern Porcupine Seabight were first described from seismic profiles by (1994) and proposed to be carbonate knolls. Higher resolution seismic showed some unusual shapes for these mounds (Henriet et al. 1998), and sidescan sonar and sampling proved them to be carbonate mud mounds of various shapes and settings associated with abundant cold water corals (Kenyon et al. 1998).