Identification

Title

Marine bedrock dataset (DiGRock250k) version 3

Alternative title(s)

DiGRock250k

Abstract

DiGRock250k is a digital geological map showing the distribution of bedrock types in the UK Continental Shelf (UKCS) area, representing the natural continuation of the onshore bedrock geology into the offshore. The bedrock divisions on the map represent the principal lithostratigraphical units (e.g. formations and groups) in the UK, ranging in age from Proterozoic to Cainozoic in age, as defined in the BGS Lexicon of Named Rock Units. This dataset can be used in conjunction with other BGS offshore datasets that include: DiGSBS250k (Sea-Bed Sediments), DiGBath250k (Bathymetry) and the DiGHardSubstrate250k datasets. The bedrock geology below the sea-bed is of importance to a range of groups, including marine habitat mappers, marine spatial planners, the offshore construction and development sector, and the dredging and aggregate industries.

Resource type

dataset

Resource locator

http://www.bgs.ac.uk/products/offshore/DigRock250.html

description: This page provides further information about the DigRock250 dataset including a user guide, details about licensing and sample data.

function: information

Unique resource identifier

code

http://data.bgs.ac.uk/id/dataHolding/13605830

codeSpace

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::4326

Additional information source

Ongoing modifications as appropriate. As accurate as the underlying geological interpretation. 1:250k scale resolution. Data are seamless. Data underwent positional accuracy change (100m) on Jan 2007 and geological review on Oct 2013. Data was released on Oct 2013.

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

originating controlled vocabulary

title

GEMET - INSPIRE themes

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

Marine geology

Data

Geology

GIS

Digital maps

Maps

originating controlled vocabulary

title

BGS Thesaurus of Geosciences

reference date

date type

revision

effective date

2011

Keyword set

keyword value

NERC_DDC

Geographic location

West bounding longitude

-15.0000

East bounding longitude

4.0000

North bounding latitude

62.0000

South bounding latitude

48.2800

Extent

Extent group

authority code

title

British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus

reference date

date type

creation

effective date

1979

code identifying the extent

UK CONTINENTAL SHELF [id=121701]

Temporal reference

Temporal extent

Begin position

End position

2013

Dataset reference date

date type

revision

effective date

2013

date type

creation

effective date

2000

Frequency of update

asNeeded

Quality and validity

Lineage

The offshore bedrock geology was mapped using a range of remotely sensed (e.g. seismic, bathymetry) and physical ground truthing data (e.g. rock drills, cores ). This mapping was first published in printed form on the bedrock offshore 1:250 000 map series (Universal Transverse Mercator projection series maps, each sheet covering an area of 1 degree of latitude by 2 degrees of longitude; still available via the BGS Bookshop). The geological linework used to create the paper maps was used as the basis for the first version of the DiGRock250k digital map. This digital map has been put through a further checking and updating cycle in 2013 to produce the newly released DiGRock250k.

Conformity

Conformity report

specification

title

INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

reference date

date type

publication

effective date

2011

degree

false

explanation

See the referenced specification

Conformity report

specification

title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

reference date

date type

publication

effective date

2010-12-08

degree

false

explanation

See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Data format

name of format

Supplied as VECTOR in ESRI SHP or MAPINFO TAB.

version of format

Current BGS version

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

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.

Responsible organisations

Responsible party

organisation name

British Geological Survey

full postal address

The Lyell Centre, Research Avenue South

EDINBURGH

EH14 4AP

United Kingdom

telephone number

0115 936 3142

facsimile number

0115 936 3276

email address

enquiries@bgs.ac.uk

responsible party role

distributor

Responsible party

organisation name

British Geological Survey

full postal address

The Lyell Centre, Research Avenue South

EDINBURGH

EH14 4AP

United Kingdom

telephone number

Metadata on metadata

Metadata point of contact

organisation name

British Geological Survey

telephone number

+44 115 936 3100

email address

enquiries@bgs.ac.uk

responsible party role

pointOfContact

Metadata date

2020-08-04

Metadata language

eng