Digitally held Seabed Sediment, Facies, Bathymetry, Solid and Quaternary offshore geology for certain areas in the UK inshore waters. The storage formats of the data are ESRI and MapInfo but other formats can be supplied.

The British Geological Survey (BGS) holds an archive of multibeam backscatter data from BGS, the Maritime & Coastguard Agency (MCA) and other organisations. The data are stored within the National Geoscience Data Centre (NGDC) as the Marine Environmental Data and Information Network (MEDIN) Data Archive Centre (DAC) for geology and geophysics. The majority of the data were collected and processed for the Maritime and Coastguard Agency (MCA) under the Civil Hydrography Programme (CHP). Backscatter image files for a survey can be downloaded (in GeoTIFF format) using the URL link provided or via the Deposited Data Search (https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html?simpleText=backscatter&subjectList=3159). Backscatter data are useful for seabed characterisation for geological and habitat mapping. BGS works with the DAC for bathymetry data at the United Kingdom Hydrographic Office (UKHO) to archive the backscatter data. View and download the related bathymetry data via the ADMIRALTY Marine Data Portal: https://www.gov.uk/guidance/inspire-portal-and-medin-bathymetry-data-archive-centre.

This is a digital version of the paper based 1:1M scale Offshore Quaternary map, North and South sheets. Customers should be aware that, given the age of the paper based maps, the digital version is not quality assured and BGS can accept no liability for the information held on the digital map. In addition, published 1:250,000 Quaternary maps are available. These contain more detailed subdivision of the Quaternary succession. The original paper based map covers the UK Continental shelf. The paper map is symbolised using lithology and chronology. The lithological boundaries were compiled from the data published in the BGS 1:250,000 Quaternary Geology map series and from revised interpretation of core and borehole data. Core and borehole sites are commonly 5 to 20 km apart, thus the lithological divisions are generalised. The formations and sequences identified by BGS have been grouped into Quaternary age ranges. The geological codes assigned to the digital version of the map have been compiled using the key information held on the paper map. The LEX-ROCK style codes combine the lithology and chronology and have been subject to the standard BGS approval process.

A set of seismic track data and accompanying interpretations in XGEO proprietary format. All of the data are project based and are commercially obtained. The interpretations and track data are confidential to the customer. Track data is digitised from maps and charts and combined with digitised seismic profile data interpreted by the geologist. Data are held by project and by user id. All project based datasets are complete but these data are not available to users except where explicit permission has been sought from the data supplier. Seismic track data is usually sampled at every 10th shotpoint. This represents a sampling interval of 250m. The seismic sections will have limits in two way time up to 10 seconds. Data is presented to UKOOA and SEQ standards in terms of data formats. There is a low level of consistency in reflector nomenclature inter-project but totally consistent intra-project.

The Bedrock summary lithologies dataset is digital geological map across the bulk of the UK Continental Shelf (UKCS), for areas up to a water depth of 200 m, which groups the bedrock lithologies (rock types) into classes based on similar engineering geology characteristics. The map is derived from the 1:250 000 scale digital bedrock map of the UKCS (BGS Offshore Bedrock 250k), which is available separately from BGS. The map was produced in 2014 in collaboration with, and co-funded by, The Crown Estate as part of a wider commissioned project to assess seabed geological constraints on engineering infrastructure across the UKCS. The divisions on the map combine the bedrock formations into 8 classes (with several subdivisions) of similar strength and lithological variability, each with a 'Category' title that summarises their main lithological character: Class1 – Igneous; Class 2 - Tertiary Sandstone and Limestone; Class 2.5 - Tertiary Sandstone and Limestone Interbedded; Class 3 - Tertiary Mudstone; Class 4 - Mesozoic Sandstone and Limestone; Class 4.5 - Mesozoic Sandstone and Limestone Interbedded; Class 5 - Mesozoic Mudstone; Class 6 – Chalk; Class 7 – Metamorphic; Class 8 - Palaeozoic Sedimentary. The data are held by the BGS as an ESRI Shapefile.

The (GEBCO) aims to provide the most authoritative, publicly available bathymetry datasets for the world's oceans. Coastline dataset to support the General Bathymetric Chart of the Oceans.

The Marine Maps and Chart Archive held by BGS contains maps created by BGS (the majority of which result from BGS offshore mapping projects) and also maps acquired from various other sources (e.g. UK Hydrographic Office and MCA Civil Hydrography Programme survey charts). The maps which date from the 1960s onwards are very variable in subject type and scale ranging from survey navigation to geological interpretation. The maps are primarily for the UKCS (United Kingdom Continental Shelf). The coverage of some map types is the entire UKCS whilst other have only regional or localised extent. The maps which are a mix of paper and digital are applicable to a wide range of uses including environmental, geotechnical, geophysical and geological studies. range of uses including environmental, geotechnical, geophysical and geological studies. Scanned maps can be viewed via the BGS maps portal http://www.bgs.ac.uk/data/maps.

Data from the British Geological Survey's GeoIndex Offshore theme are made available for viewing here. GeoIndex is a website that allows users to search for information about BGS data collections covering the UK and other areas world wide. Access is free, the interface is easy to use, and it has been developed to enable users to check coverage of different types of data and find out some background information about the data. More detailed information can be obtained by further enquiry via the web site: www.bgs.ac.uk/geoindex.

This layer of the map based index (GeoIndex) shows unadjusted ship gravity, magnetic and bathymetry data acquired by BGS as part of its Offshore Reconnaisance Mapping Programme. This programme commenced in 1967, and was funded mainly by the Department of Energy. Unadjusted ship gravity and bathymetry data from various commercial and academic surveys between 1965 and 1994. Confidential M.O.D Hydrographic Office integrated ship gravity and magnetics surveys of NW Europe marine areas for which BGS acts as agent. Network adjusted gravity and magnetic compilations of data from BGS and non-BGS sources.

BGS offshore marine products are made available to view via this web map service. The 1:250 000 scale offshore geological maps in the UTM series (Universal Transverse Mercator projection) are available digitally as two themes: bedrock geology (DigRock250) and sea-bed sediments (DigSBS250). Marine Hard Substrate Dataset (DiGHardSubstrate250k) is also made available via this service.