Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1150; Tarbat Ness, Area in SqKm: 2523, (31/05/2006 to 29/04/2008), Standard: IHO S44ed4 Order 1. Contract: Medium (LT). FY 2006/07. Contractor: Gardline.