This map is based on analysis of 3720 stream sediment samples collected at an average density of one per 2.5 km2 during the field campaigns of 2004 and 2012.
The image was generated in ArcGIS 10.1 using inverse distance weighting (IDW) of the nearest 12 samples within a variable search radius capped at 10 km. Cell size is 500 m. Detailed information on sampling and analytical methods are provided in the following published geochemical atlas:
Regional geochemistry of Wales and west-central England: stream sediment and soil. 2000. British Geological Survey, Keyworth, Nottingham. ISBN 0 85272 378 4.
These data are delivered under the terms of the Open Government Licence, subject to the following acknowledgement accompanying the reproduced BGS materials: "Contains British Geological Survey materials © UKRI [year]".
Title | Uranium (U) in stream sediments |
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Source | British Geological Survey |
Contact | BGS enquiries |
Scale(s) | 500 m x 500 m image grid cell resolution |
Coverage | South-west England (Cornwall and parts of Devon and Somerset) |
Uses | Local to national level use |
Format and price | JPEG, PDF, ESRI Grids and raster image viewer free to use under the Open Government Licence. Geochemical analytical data for stream sediments and soils, in Excel format, available on request subject to licence fee, IPR restrictions and data preparation fee. |
Images and downloads | |
Map viewer | View in TellusSW map viewer |
Web Map Service | https://map.bgs.ac.uk/arcgis/services/TellusSW/SW_stream_sediment_elements/ MapServer/WmsServer? |