Quaternary deposits thickness across the UK Continental Shelf (2014 Version)

The Quaternary deposits thickness dataset is a digital geological map across the bulk of the UK Continental Shelf (UKCS), for areas up to a water depth of 200m, which shows the thickness of the deposits over bedrock in three categories: <5m, 5-50m, and >50m Quaternary cover. These depth bands were picked because they represent the horizons that have impact on offshore infrastructure deployment. The map is derived from (unpublished) BGS 1:1000000 scale Quaternary digital geological mapping. The map was produced in 2014 in collaboration with, and co-funded by, The Crown Estate as part of a wider commissioned project to assess seabed geological constraints on engineering infrastructure across the UKCS. The data are held by the BGS as an ESRI ArcGIS Shapefile.

Date (Creation): 2014-03-31

Date (Publication): 2014-03-31

Identifier: http://data.bgs.ac.uk/id/dataHolding/13606631

Distributor

British Geological Survey - Enquiries

The Lyell Centre, Research Avenue South , EDINBURGH , LOTHIAN , EH14 4AP , United Kingdom

0115 936 3142
0115 936 3276

Originator

British Geological Survey - Enquiries

The Lyell Centre, Research Avenue South , EDINBURGH , LOTHIAN , EH14 4AP , United Kingdom

0115 936 3142
0115 936 3276

Point of contact

British Geological Survey - Enquiries

The Lyell Centre, Research Avenue South , EDINBURGH , LOTHIAN , EH14 4AP , United Kingdom

0115 936 3142
0115 936 3276

Maintenance and update frequency: notPlanned Not planned

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

UK Location (INSPIRE)
Geological maps
Quaternary
Continental shelf

dataCentre

UK Location (INSPIRE)

Keywords

NERC_DDC

Access constraints: otherRestrictions Other restrictions

Other constraints: licenceOGL

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

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: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Spatial representation type: vector Vector

Denominator: 250000

Metadata language: EnglishEnglish

Topic category

Geoscientific information

Geographic identifier

UK CONTINENTAL SHELF [id=121701]

Date (Creation): 1979

Begin date: 1966

End date: 2013

Unique resource identifier: WGS 84 (EPSG::4326)

Distribution format

ESRI shapefiles ()

Distributor

British Geological Survey - Enquiries

The Lyell Centre, Research Avenue South , EDINBURGH , LOTHIAN , EH14 4AP , United Kingdom

0115 936 3142
0115 936 3276

OnLine resource: Data

OnLine resource: Digital Object Identifier (DOI)

Hierarchy level: dataset Dataset

Other: dataset

Conformance result

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

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: No

Statement: Areas of Quaternary thin cover were originally from the 1:1000000 Quaternary layer (unpublished). Polygons with attributes of less than 5m thick (offshore) were isolated and used to create this new ArcGIS shapefile of Quaternary thin cover. Polygons of areas where Quaternary thickness is less than 50 m or greater than 50 m were created using the Quaternary Thickness layer, which consists of isopach lines (polylines) of sediment thickness derived from the 1:1000000 Quaternary layer (unpublished). As these polygons originate from 1:1000000 scale maps, they are not of high resolution. The processing was done in ArcGIS 10.1. Part of this dataset, mainly around the coastline, has been coarsely interpolated so that its extent covers the whole factor map area. The methodology used to fill in no-data areas consists of dividing these areas into square grids (10x10km) where each polygon within the grid will get assigned the category value of the polygon sharing its border in an iterative process until all polygons within the grid have a category value. This iteration was done by running the ArcGIS Spatial Join tool several times with the match option “SHARE_A_LINE_SEGMENT_WITH”. The final step is merging the now attributed grid to the dataset and dissolving the polygons.