Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1436; Dover Strait TSS Bassurelle and Bullock Banks, Area in SqKm: 573, (07/10/2013 to 31/03/2014), Standard: IHO S44ed5 Order 1a. Contract: Shallow. FY 2013/14. Contractor: Gardline.