Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1279; Eastern Approaches to the Nab Channel, Area in SqKm: -101, (29/09/2008 to 19/10/2008), Standard: IHO S44ed5 Order 1a. Contract: Shallow (LT). FY 2008/09. Contractor: Fugro OSAE.