Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1354; Firth of Lorne, Area in SqKm: 553, (28/05/2012 to 18/10/2013), Standard: IHO S44ed5 Order 1a. Contract: INIS Hydro. FY 2012/13. Contractor: SAMS.