Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1521; East Anglia Routine Resurvey 2016, EA9 Holm Channel Focused Area, Area in SqKm: 12; EA3 Cockle Shoal Focused Area B, Area in SqKm: 1; EA3 Cockle Shoal Focused Area A, Area in SqKm: 0; EA10 Stanford Channel, Area in SqKm: 12, (18/09/2016 to 03/11/2016), Standard: IHO S44ed5 Order 1a. Contract: RRS (2016/17). FY 2016/17. Contractor: EGS.