Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1331; Little Minches, Area in SqKm: 883, (12/08/2010 to 27/09/2010), Standard: IHO S44ed5 Order 1a. Contract: ETV. FY 2010/11. Contractor: NetSurvey.