Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1371; Sound of Jura, Area in SqKm: 524, (16/09/2012 to 25/02/2013), Standard: IHO S44ed5 Order 1a. Contract: Medium. FY 2012/13. Contractor: MMT UK.