Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1508; Beauforts Dyke North, Area in SqKm: 580, (05/01/2017 to 18/02/2017), Standard: IHO S44ed5 Order 1a. Contract: Medium. FY 2016/17. Contractor: MMT UK.