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.

Alternate title: DiGRock250k

Date (Creation): 2013

Citation identifier: http://data.bgs.ac.uk/id/dataHolding/13605830

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Custodian
British Geological Survey	Enquiries	not available	Distributor
British Geological Survey	Enquiries	not available	Distributor
British Geological Survey	Enquiries	not available	Originator
British Geological Survey	Enquiries	not available	Owner
British Geological Survey	Enquiries	not available	Point of contact

Maintenance and update frequency: 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)
Citable Data

dataCentre

Keywords

NERC_DDC

Access constraints: 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: 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

Denominator: 250000

Language: English

Topic category

Geoscientific information

Geographic identifier: UK CONTINENTAL SHELF [id=121701]
British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation

Begin date: 2013-10 Before

End date: 2013-10

Unique resource identifier: WGS 84 (EPSG::4326)

Distribution format

Name	Version
ESRI Shapefile (.shp)
GeoPackage (.gpkg)

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Distributor

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Distributor

OnLine resource

Protocol	Linkage	Name
	https://www.bgs.ac.uk/datasets/offshore-bedrock-250k/	BGS Datasets - Offshore bedrock 250k Homepage

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--related	https://doi.org/10.5285/d933077d-d8af-48cd-85ba-8c31ce2a95a6	BGS Offshore Bedrock 250k version 3.0

Hierarchy level: Dataset

Other: dataset

Conformance result

Title: INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

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).