Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1274; Papa Stour to Point of Fethaland Blocks 1 to 6, Area in SqKm: 607, (14/05/2008 to 16/07/2008), Standard: IHO S44ed5 Order 1a. Contract: ETV. FY 2008/09. Contractor: NetSurvey.