Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1267; Black Deep (focused), Area in SqKm: 17, (10/06/2008 to 21/09/2008), Standard: IHO S44ed5 Order 1a. Contract: RRS (2006 LT). FY 2008/09. Contractor: MMT.