Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1083; Eastern Approaches to the Firth of Forth, Area in SqKm: 2305, (01/05/2005 to 01/08/2005), Standard: IHO S44ed4 Order 1. Contract: TCA3/7/684. FY 2004/05. Contractor: Gardline.