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BGS Offshore Bedrock 250k version 3.0

The BGS Offshore Bedrock 250k dataset contains vector data which reflects the offshore bedrock geological of the UK and some of its adjacent waters (the UK Exclusive Economic Zone, EEZ) at 1:250,000 scale. This comprehensive product provides a digital compilation of the paper maps published by BGS at the same scale, as well as, additional re-interpretations from regional geological studies. The composition, age and deformational history of the rocks underlying the seabed (bedrock) are important for a range of stakeholders, including marine spatial planners and offshore developers. The dataset is arranged in two GIS layers: Bedrock Lithostratigraphy and Bedrock Structural Geology. The polygons within the Bedrock Lithostratigraphy layer show the spatial distribution of the principal lithostratigraphical units (formations and groups). The lines within the Structural Geology layer show the location and extent of known structural features such as faults and folds. This dataset was compiled from remotely sensed geophysical data (e.g. airgun, boomer, sparker, sidescan sonar, magnetometer, gravity meter) and ground-truthing data obtained from commercial wells and BGS shallow boreholes. The variations in data density are reflected in the detail of the mapping. The bedrock divisions on the map represent the principal lithostratigraphical units (e.g. formations and groups) in the UK, ranging in age from Proterozoic to Cenozoic, as defined in the BGS Lexicon of Named Rock Units. An additional layer delineating the principal structural features, such as faults and folds observed at the rockhead is also included. This dataset was produced for use at 1:250 000 scale. The data should not be relied on for local or site-specific geology.

Simple

Alternate title
DiGRock250k
Date (Creation)
2013
Identifier
http://data.bgs.ac.uk/id/dataHolding/13605830
Custodian
  British Geological Survey - Enquiries
United Kingdom
Distributor
  British Geological Survey - Enquiries
Distributor
  British Geological Survey - Enquiries
Originator
  British Geological Survey - Enquiries
Owner
  British Geological Survey - Enquiries
United Kingdom
Point of contact
  British Geological Survey - Enquiries
Maintenance and update frequency
asNeeded As needed
GEMET - INSPIRE themes, version 1.0
  • Geology
BGS Thesaurus of Geosciences
  • Continental shelf
  • Geology
  • Digital maps
  • Marine geology
  • EGDI
  • Maps
  • MEDIN
  • Bed rock
  • UK Location (INSPIRE)
dataCentre
  • UK Location (INSPIRE)
  • MEDIN
  • EGDI
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
Other constraints
no limitations
Other constraints
The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible.
Use constraints
otherRestrictions Other restrictions
Other constraints
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Spatial representation type
vector Vector
Denominator
250000
Metadata language
EnglishEnglish
Topic category
  • Geoscientific information
Geographic identifier
UK CONTINENTAL SHELF [id=121701]

Date (Creation)
1979

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Begin date
2013-10 Before
End date
2013-10
Unique resource identifier
WGS 84 (EPSG::4326)
Distribution format
  • ESRI Shapefile (.shp) ()

  • GeoPackage (.gpkg) ()

Distributor
  British Geological Survey - Enquiries
Distributor
  British Geological Survey - Enquiries
OnLine resource
BGS Datasets - Offshore bedrock 250k Homepage

This page provides further information about the BGS Offshore Bedrock 250k dataset including a user guide, details about licensing and sample data.

OnLine resource
BGS Offshore Bedrock 250k version 3.0 ( WWW:LINK-1.0-http--related )

British Geological Survey (2013): BGS Offshore Bedrock 250k version 3.0. British Geological Survey. (Dataset). https://doi.org/10.5285/d933077d-d8af-48cd-85ba-8c31ce2a95a6

Hierarchy level
dataset Dataset
Other
dataset

Conformance result

Date (Publication)
2011
Explanation
See the referenced specification
Pass
No

Conformance result

Date (Publication)
2010-12-08
Explanation
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
Pass
No
Statement
The offshore bedrock geology was mapped using a range of remotely sensed (e.g. seismic, side scan sonar) and physical ground truthing data (e.g. boreholes, cores). This mapping was first published in printed form on the bedrock offshore 1:250 000 map series (known as Solid Geology). Using Universal Transverse Mercator projection, each sheet covers an area of 1 degree of latitude by 2 degrees of longitude. The printed maps are still available via the BGS Bookshop. The geological linework used to create the paper maps was used as the basis for the first version of this dataset (then call DiGRock250k). The second version of this dataset was released in 2007 (known as DiGRock250k v.2). The principle objective of this revision and geological checking was to remove, as much as possible, join-up issues between the various ‘sheet’ areas, inherited from the sequentially published paper maps. In 2013, the dataset was put through a further comprehensive geological and GIS checking process to create the third and current version (then named DiGRock250k v.3).
File identifier
e605cf9b-7fb3-0431-e044-0003ba9b0d98 XML
Metadata language
EnglishEnglish
Hierarchy level
dataset Dataset
Date stamp
2025-11-13
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  British Geological Survey
The Lyell Centre, Research Avenue South , EDINBURGH , LOTHIAN , EH14 4AP , United Kingdom
+44 131 667 1000
Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13605830
 
 

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