Identification info

Metadata Language

English (en)

Dataset Reference Date ()

2014-03-31

Dataset Reference Date ()

2014-03-31

Identifier

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

Maintenance and update frequency

notPlanned

GEMET - INSPIRE themes

• Geology

BGS Thesaurus of Geosciences

• Quaternary

• Geological maps

• Continental shelf

Keywords

• NERC_DDC

Limitations on Public Access

otherRestrictions

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 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

Denominator

250000

Topic category

• Geoscientific information

Extent

UK CONTINENTAL SHELF [id=121701]

Dataset Reference Date ()

1979

Begin date

1966

End date

2013

 

Distribution Information

Data format

• ESRI shapefiles

  ()

 

Quality Scope

dataset

Other

dataset

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Areas of Quaternary thin cover were originally from the 1:1000000 Quaternary layer (unpublished).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.

Metadata

File identifier

166c7ca4-0bff-1f2d-e054-002128a47908 XML

Metadata Language

English (en)

Resource type

dataset

Metadata Date

2022-05-20

Metadata standard name

UK GEMINI

Metadata standard version

2.3