Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1116; Sunk to Long Sand Head, Area in SqKm: 22; Sunk to Long Sand Head, Area in SqKm: 45, (30/06/2005 to 29/07/2005), Standard: IHO S44ed4 Order 1). Contract: RRS (2005/06). FY 2005/06. Contractor: RN (NP1016).