G-BASE topsoil soil (points)

These topsoil samples were collected mainly by the Geochemical Baseline Survey of the Environment (G-BASE) programme. Regional (generally rural) samples are collected at an average density of one site per 2 square kilometres, urban sampling is at a density of 4 samples per square kilometre. Topsoil samples are collected at a depth of 5 - 20cm, sieved through a 2mm mesh and milled to less than 150 microns prior to analysis. The data include analyses for some or all of the following elements by XRFS: Mg, P, K, Ca, Ti, Mn, Fe, V, Cr, Co, Ba, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Y, Zr, Nb, Mo, Pb, Bi, Th, U, Ag, Cd, Sn, Sb, Cs, La, Ce, Ge, Sc, Se, Br, Hf, Ta, W, Tl, Te and I. Loss on Ignition (LOI) and pH (in a slurry of 0.01 M CaCl2 ) is now routinely determined on 50% of regional and all urban samples.

These data are made available under the Open Government Licence, subject to the following acknowledgement accompanying the reproduced BGS materials: "Contains British Geological Survey materials © NERC [year]".

G-BASE Topsoil

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Title G-BASE topsoil (points)
Source British Geological Survey
Enquiries BGS Enquiries
Scale(s) Point data
Coverage Great Britain
Format GIS point data
Price A free WMS service is available.
Uses Local to national level use
Downloads None at this time (we are currently compiling the data to make it available under Open Government licensing condition)
Map Viewer View in UKSO Map Viewer
WMS link http://mapapps2.bgs.ac.uk/ArcGIS/services/
Images High resolution | low resolution