This report summarizes the comparison of inorganic geochemical data for shallow 'A' and deeper 'S' topsoil samples collected at the same site from locations across Ireland. The report is published along with the digital map series available as a separate downloads.
The report can be accessed here.
Link to the Tellus geochemical survey: shallow topsoil multielement maps for the northern half of Ireland map booklet.
Link to the Tellus Geochemical Survey: deeper topsoil multi-element maps for the northern half of Ireland map booklet