BGS Geology - 50k (DiGMapGB-50) Linear version 8

Linear features (shown as polylines) represent six classes of 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. However landform elements are associated with both bedrock and superficial deposits. The linear features are organised into seven main categories: Alteration area indicating zones of change to the pre-existing rocks due to the application of heat and pressure that can occur round structural features such as faults and dykes. Fault where a body of bedrock has been fractured and displaced by a large scale process affecting the earth's crust. Fold where strata are bent or deformed resulting from changes or movement of the earth's surface creating heat and pressure to reshape and transform the original horizontal strata. Folds appear on all scales, in all rock types and from a variety of causes. Fossil horizons where prolific fossil assemblages occur and can be used to help establish the order in which deposits were laid down (stratigraphy). These horizons allow correlation where sediments of the same age look completely different due to variations in depositional environment. Mineral vein where concentrations of crystallised mineral occur within a rock, they are closely associated with faulting, but may occur independently. Landforms define the landscape by its surface form; these include glacial features such as drumlins, eskers and ice margins. Rock identifies key (marker) beds, recognised as showing distinct physical characteristics or fossil content. Examples include coal seams, gypsum beds and marine bands. The data 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
. BGS Geology - 50k (DiGMapGB-50) Linear version 8. https://metadata.bgs.ac.uk/geonetwork/srv/api/records/3e06e1a4-0b12-5b4a-e054-002128a47908

Simple

Date ( Creation ): 2016

Identifier: http://data.bgs.ac.uk/id/dataHolding/13607013

Distributor

British Geological Survey

Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom

+44 115 936 3100

+44 115 936 3276

Point of contact

British Geological Survey

Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom

+44 115 936 3100

Maintenance and update frequency: irregular Irregular

GEMET - INSPIRE themes

Geology

BGS Thesaurus of Geosciences

Data , Geology , GIS , Maps , Digital maps

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

Reference system identifier

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

Date ( Revision ): 2005

Distribution format

()

Distributor

British Geological Survey

Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom

+44 115 936 3100

+44 115 936 3276

OnLine resource: http://www.bgs.ac.uk/products/digitalmaps/DiGMapGB_50.html

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 linear features as polylines, for further information http://www.bgs.ac.uk/downloads/start.cfm?id=644 The data is processed by improvements and additions of new geological mapping to the master geodatabase; comprising all BGS published maps at this scale.