The Cenozoic tectonic history of Ireland is advancing into a new phase of d
ata and understanding, built upon the work of eminent Irish geologists, suc
h as Frank Mitchell and Gordon Herries-Davies, From topographic and fluvial
studies, it is now clear that the Irish landscape is young and dynamic, ce
rtainly post-Mesozoic and that it was developed principally by very slow Me
sozoic-Cenozoic denudation and Cenozoic fragmented uplift by Eocene-Oligoce
ne extensional normal faulting and Miocene to present-day compression. A hu
ge amount of new data acquisition is needed to test and develop new hypothe
ses of Irish landscape evolution.