Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1459; Thames Routine Resurvey 2014Thames Estuary - TE5a Long Sand, Area in SqKm: 11; Thames Estuary - TE5 Long Sand Head, Area in SqKm: 6; Thames Estuary - TE5a Sunk DW Route, Area in SqKm: 4; Thames Estuary - TE6 Black Deep, Area in SqKm: 69; Thames Estuary - TE3 South Ship Head, Area in SqKm: 3; Thames Estuary - TE3a Sunk, Area in SqKm: 20, (16/06/2014 to 16/07/2014), Standard: IHO S44ed5 Order 1a. Contract: RRS. FY 2014/15. Contractor: EGS.