"This is the peer reviewed version of the following article: Westley, K, Plets, R and Quinn, R (2014) Holocene Paleo- Geographic Reconstructions of the Ramore Head Area, Northern Ireland, Using Geophysical and Geotechnical Data: Paleo-Landscape Mapping and Archaeological Implications. Geoarchaeology: An International Journal 29(6):411-430., which has been published in final form at http://dx.doi/10.1002/gea.21489. This article may be used for non- commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving." Holocene paleo-geographic reconstructions of the Ramore Head area, Northern Ireland, using geophysical and geotechnical data: paleo-landscape mapping and archaeological implications. Kieran Westley*, Ruth Plets, Rory Quinn Centre for Maritime Archaeology, University of Ulster Coleraine, BT52 1SA, UK *
[email protected] ABSTRACT We present early to mid-Holocene paleo-geographic reconstructions for the Ramore Head area (Northern Ireland). This coastal area is characterised by Mesolithic occupation (c. 10–6 ka) and preserved early–mid Holocene peats both on- and offshore. This paper improves on previous reconstructions by employing a backstripping methodology which removes accumulated recent deposits from identified buried paleo- landsurfaces instead of using modern topography as an analogue to the past landscape. Paleo-landsurfaces are identified offshore from seismic profiles supplemented by cores, and onshore through legacy borehole records. The paleo-landsurface can be traced offshore to depths of -2 to -19 m and is buried by <5 m of modern sediment. It extends onshore under the coastal town of Portrush and is buried <2.5–10 m below modern ground level. The identified paleo-landsurface is combined with sea-level curves from recent Glacio-Isostatic-Adjustment models to reconstruct marine transgression during the early–mid-Holocene.