Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1166; Long Sand Head (A), Area in SqKm: 8; Long Sand Head (B), Area in SqKm: 7; Long Sand Head (C), Area in SqKm: 2, (21/08/2006 to 22/08/2006), Standard: IHO S44ed4 Order 1. Contract: RRS (2006 LT). FY 2006/07. Contractor: MMT.