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DOI: 10.1191/0959683603hl574rr Assessing the impact of Icelandic volcanism on vegetation systems in the north of Ireland in the fifth and sixth millennia BCInstitute of Irish Studies, Queen's University, Belfast BT7 1NN, Northern Ireland, UKv.hall{at}qub.ac.uk The Lairg tephras comprise two of the three most abundantly represented tephra layers in Irish Holocene peat sequences. The impact of these tephras on the vegetation at two lowland raised bogs in Northern Ireland is investigated through high-resolution pollen percentage and concentration studies. The palynological response of mire and dryland taxa to the tephra falls is assessed. No significant palynological response to either tephra event is recorded.
Key Words: Tephra tephrochronology Lairg layers volcanic impact early-Holocene vegetation Ireland
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