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.
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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
Custodian
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
Point of contact
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
Distributor
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
- 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
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
- 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
British Geological Survey
-
Lee,Kathryn A
(NERC-BGS Higher Scientific Officer )
Environmental Science Centre,Keyworth
NOTTINGHAM
NOTTINGHAMSHIRE
NG12 5GG
United Kingdom
- Dataset URI
- http://data.bgs.ac.uk/id/dataHolding/13603028