Digital Geological Map Data of Great Britain - 50k (DiGMapGB-50) version 7

Data identifying landscape areas (shown as polygons) attributed with geological names. The scale of the data is 1:50 000 scale. Onshore coverage is provided for all of England, Wales, Scotland and the Isle of Man. Data are supplied as five themes: bedrock, superficial deposits, mass movement, artificial ground and linear features. Bedrock geology describes the main mass of solid rocks forming the earth's crust. Bedrock is present everywhere, whether exposed at surface in outcrops or concealed beneath superficial deposits or water bodies. Geological names are based on the lithostratigraphic or lithodemic hierarchy. The lithostratigraphic scheme arranges rock bodies into units based on rock-type and geological time of formation. Where rock-types do not fit into the lithostratigraphic scheme, for example intrusive, deformed rocks subjected to heat and pressure resulting in new or changed rock types; then their classification is based on their rock-type or lithological composition. This assesses visible features such as texture, structure, mineralogy. Superficial deposits are younger geological deposits formed during the most recent geological time; the Quaternary. These deposits rest on older rocks or deposits referred to as bedrock. The superficial deposits theme defines landscape areas (shown as polygons) attributed with a geological name and their deposit-type or lithological composition. Mass movement describes areas where deposits have moved down slope under gravity to form landslips. These landslips can affect bedrock, superficial or artificial ground. Mass movement deposits are described in the BGS Rock Classification Scheme Volume 4. However this data also includes foundered strata, where ground has collapsed due to subsidence (this is not described in the Rock Classification Scheme). Caution should be exercised with this data; historically BGS has not always recorded mass movement events and due to the dynamic nature of occurrence significant changes may have occurred since the data was released. Artificial (man-made) theme (shown as polygons) indicates areas where the ground surface has been significantly modified by human activity. Whilst artificial ground may not be considered as part of the 'real geology' of bedrock and superficial deposits it does affect them. Artificial ground impacts on the near surface ground conditions which are important to human activities and economic development. Due to the constantly changing nature of land use and re-use/redevelopment, caution must be exercised when using this data as it represents a snapshot in time rather than an evolving picture hence the data may become dated very rapidly. Linear features (shown as polylines) represent geological structural features e.g. faults, folds or landforms e.g. buried channels, glacial drainage channels at the ground or bedrock surface (beneath superficial deposits). Linear features are associated most closely with the bedrock theme either as an intrinsic part of it for example marine bands or affecting it in the case of faults. Landform elements are associated with both bedrock and superficial deposits. All five data themes are available in vector format (containing the geometry of each feature linked to a database record describing their attributes) as ESRI shapefiles and are available under BGS data licence.
 
Citation proposal
Enquiries (British Geological Survey). Digital Geological Map Data of Great Britain - 50k (DiGMapGB-50) version 7. https://metadata.bgs.ac.uk/geonetwork/srv/api/records/9df8df52-d7d1-37a8-e044-0003ba9b0d98

Simple

Date ( Creation )
2013
Identifier
http://data.bgs.ac.uk/id/dataHolding/13480428

  Distributor

  0115 936 3276 

  Originator

  0115 936 3276 

  Point of contact

  0115 936 3276 

  Custodian

  0115 936 3276 
Maintenance and update frequency
asNeeded As needed
GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Digital maps , Geology , Data , Maps , GIS
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
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
The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk ) if further advice is required with regard to permitted usage.
Spatial representation type
vector Vector
Denominator
50000
Metadata language
English English
Topic category
  • Geoscientific information
Geographic identifier
GBN

 

Date ( Revision )
2009

Geographic identifier
GREAT BRITAIN [id=139600]

 

Date ( Creation )
1979

N
S
E
W


Reference system identifier
OGP / urn:ogc:def:crs:EPSG::27700

 

Date ( Revision )
2005

Distribution format
  • ESRI shapefiles ()

  Distributor

  0115 936 3276 
OnLine resource
DiGMapGB-50  

More information on the DiGMapGB-50 dataset is available via this URL.

OnLine resource
British geology onshore digital maps 1:50 000 scale | DiGMapGB-50 — WMS  

The WMS layer can be accessed by entering this URL address below into your WMS client. The service supports the British National Grid and Lat/Long WGS84 coordinate systems and the data is visible when zoomed in between 1:100 000 and 1:25 000 scale.

OnLine resource
British geology onshore digital maps 1:50 000 scale | DiGMapGB-50 — WMS  

Information about the DiGMapGB-50 WMS layer can be viewed via the web page this URL links to.

Hierarchy level
dataset Dataset
Other
dataset

Conformance result

Date ( Publication )
2011
Explanation
See the referenced specification
Pass
false

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
false
Statement
The data shows polygonal and selected linear geological information, primarily sourced from published BGS 1:50 000 or 1:63 360 scale maps. For further lineage information see Digital Geological Map of Great Britain, information notes, 2013, http://www.bgs.ac.uk/downloads/start.cfm?id=644

gmd:MD_Metadata

File identifier
9df8df52-d7d1-37a8-e044-0003ba9b0d98   XML
Metadata language
English English
Hierarchy level
dataset Dataset
Date stamp
2020-10-22
Metadata standard name
UK GEMINI
Metadata standard version
2.3

  Point of contact

Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13480428
 
 

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