This technical report presents the findings of the Tellus Border research project no.10761: A geochemical approach to unravelling ice sheet history using both Tellus and Tellus Border soil geochemical data completed between April and October 2013. The project uses the soil geochemical data compiled by the Tellus Border and Tellus surveys to investigate the provenance of primary glacigenic sediment i.e. till in the north of Ireland with the purpose of identifying the nature of subglacial transport in the study area. This has implications for understanding the genesis of till and subglacial bedforms in the region and contributes to understanding of the history of the Irish Ice Sheet. It is the first regional-scale investigation of geochemistry in the northern sector of the Irish Ice Sheet.