Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1079; DWR Tail of the Falls, Area in SqKm: 6, (28/07/2004 to 29/07/2004), Standard: IHO S44ed4 Order 1. Contract: RRS (2004/05). FY 2004/05. Contractor: RN (NP1016).