GeoSure Shrink Swell Deposits

The GeoSure data sets and reports from the British Geological Survey provide information about potential ground movement or subsidence in a helpful and user-friendly format. The reports can help inform planning decisions and indicate causes of subsidence. The methodology is based on BGS DiGMap (Digital Map) and expert knowledge of the behaviour of the formations so defined. This dataset provides an assessment of the potential for a geological deposit to shrink and swell. Many soils contain clay minerals that absorb water when wet (making them swell), and lose water as they dry (making them shrink). This shrink-swell behaviour is controlled by the type and amount of clay in the soil, and by seasonal changes in the soil moisture content (related to rainfall and local drainage). The rock formations most susceptible to shrink-swell behaviour are found mainly in the south-east of Britain. Clay rocks elsewhere in the country are older and have been hardened by burial deep in the earth and are less able to absorb water. The BGS has carried out detailed geotechnical and mineralogical investigations into rock types known to shrink, and are modelling their properties across the near surface. This research underpins guidance contained in the national GeoSure dataset, and is the basis for our responses to local authorities, companies and members of the public who require specific information on the hazard in their areas. The BGS is undertaking a wide-ranging research programme to investigate this phenomenon by identifying those areas most at risk and developing sustainable management solutions. Complete Great Britain national coverage is available. The storage formats of the data are ESRI and MapInfo but other formats can be supplied.
 
Citation proposal
British Geological Survey. GeoSure Shrink Swell Deposits. https://services.mspdata.eu:/geonetwork/srv/api/records/9df8df52-d608-37a8-e044-0003ba9b0d98

Simple

Date ( Creation )
2005
Identifier
http://data.bgs.ac.uk/id/dataHolding/13603028

  Custodian

  Point of contact

  Distributor

  +44 115 936 3276 
Maintenance and update frequency
asNeeded As needed
GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Natural hazards
Keywords
  • NERC_DDC
Use limitation
The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (DigitalLE@bgs.ac.uk ) if further advice is required with regard to permitted usage.
Access constraints
otherRestrictions Other restrictions
Other constraints
otherRestrictions
Denominator
50000
Metadata language
English English
Topic category
  • Geoscientific information
Geographic identifier
ENG

 

Date ( Revision )
2009

Geographic identifier
ENGLAND [id=150000]

 

Date ( Creation )
1979

Geographic identifier
SCOTLAND [id=140000]

 

Date ( Creation )
1979

Geographic identifier
SCT

 

Date ( Revision )
2009

Geographic identifier
WALES [id=170000]

 

Date ( Creation )
1979

Geographic identifier
WLS

 

Date ( Revision )
2009

N
S
E
W


Supplemental Information
Geotechnical data abstracted from NGDC site investigation collection and entered into the BGS geotechnical database. Methodology may be revised in the light of new knowledge or customer feedback. Changes in DiGMapGB-50 base data will require periodic or continuous revision. ADDITIONAL_INFO 1 = Complete GB National Coverage, subject to revision in line with changes in DiGMapGB-50 lithology codes. Based on 1:50 000 DiGMapGB-50 linework. Methodology consistent throughout. Otherwise subject to logical consistency of DiGMapGB-50.
Reference system identifier
OGP / urn:ogc:def:crs:EPSG::27700

 

Date ( Revision )
2005

Distribution format
  • ESRI Shapefile (Current BGS version )

  Distributor

  +44 115 936 3276 
OnLine resource
BGS GeoSure Homepage  
Hierarchy level
dataset 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
Methodology devised by GeoHazard project. Latest version and earlier versions are held in project files.

Metadata

File identifier
9df8df52-d608-37a8-e044-0003ba9b0d98   XML
Metadata language
English English
Hierarchy level
dataset Dataset
Date stamp
2017-01-17
Metadata standard name
NERC profile of ISO19115:2003
Metadata standard version
1.0

  Point of contact

Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13603028
 
 

  Overviews


Provided by

Access to the portal

Associated resources

Not available