Alternate title

DiGMapPlus_Discontinuities_V6

Date ( Creation )

2015

Identifier

http://data.bgs.ac.uk/id/dataHolding/13606850

Maintenance and update frequency

asNeeded As needed

GEMET - INSPIRE themes

• Geology

BGS Thesaurus of Geosciences

• Geological structures , Engineering , Engineering geology , Discontinuity , Geology

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

Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk ) for advice, should the position not be clear.

Spatial representation type

vector Vector

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

Reference system identifier

OGP / urn:ogc:def:crs:EPSG::27700

 

Date ( Revision )

2005

Distribution format

• Shapefile ()

OnLine resource

BGS Homepage  

The BGS Homepage is an entry point to the BGS data services.

Hierarchy level

dataset Dataset

Other

dataset

Statement

The source data for this dataset is based on the digital geological map of GB (DiGMapGB-50) which has been processed to create the Parent Material Map (PMM) V6 at 50K scale. This provided the underlying geology areas (polygons). The geology has been reattributed using a set of engineering properties. Data was collated and interpreted from a number of different sources held by BGS including BGS National Geotechnical Properties Database BGS Lexicon of Named Rock Units BGS Map Sheet Explanations BGS Sheet Memoirs BGS Geoscience Imagebase BGS and Geological Society Regional Guides BGS Urban Planning Reports BGS Engineering Geology Formation Study Reports Site Investigation Records and Borehole Scans held in BGS archives These data were used to devise engineering property values by BGS experts and applied to the PMM data using a series of lookup tables to describe the uppermost 2m in relation to its discontinuity properties. The DiGMapPlus datasets follow a standard workflow to create each dataset: - Step 1: Identify characteristic, measurements and observations from archive records. - Step 2: Categorise the observations into classes/groups of similar behaviours. Where possible using published standards of classification such as BS 5930, Eurocode 7 or other similar international or national standard. - Step 3: Assess the range of lithstratigraphic variation of geological materials across Great Britain, in terms of the categories and classes identified in step 2 to create a 'lookup' dataset of expected attributes (material characteristics and behaviours) per lithostratigraphic unit. - Step 4: Compile the spatial (map) components of the DiGMapPlus datasets with the 'lookup' dataset using standard GIS and data techniques to create a new 'map' of discontinuity characteristics. Spatial data-creation and discontinuity attribution has been completed using ESRI ARCGIS software.

gmd:MD_Metadata

File identifier

24e52c19-45f8-6a69-e054-002128a47908   XML

Metadata language

English English

Hierarchy level

dataset Dataset

Date stamp

2021-01-19

Metadata standard name

UK GEMINI

Metadata standard version

2.3

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13606850