Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1362; Outer Approaches to Firth of Lorne, Area in SqKm: 1740, (27/07/2011 to 16/10/2012), Standard: IHO S44ed5 Order 1a. Contract: Medium. FY 2011/12. Contractor: MMT/NetSurvey.