Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1491; Whitby to Redcar, Area in SqKm: 603, (27/11/2016 to 21/12/2016), Standard: IHO S44ed5 Order 1a. Contract: Medium. FY 2016/17. Contractor: MMT UK.