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Multiproxy late Holocene peat records from Ireland: towards a regional palaeoclimate curve

Blundell, Antony, Charman, Dan J. and Barber, Keith (2007) Multiproxy late Holocene peat records from Ireland: towards a regional palaeoclimate curve Journal of Quaternary Science, 23, (1), pp. 59-71. (doi:10.1002/jqs.1115).

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Two new peat-based climate records from Ireland covering the late Holocene are presented. The sequences are dated by a strong chronological framework formed by AMS radiocarbon dates and SCPs. Three proxy indicators (testate amoebae, macrofossils and humification) have been determined allowing the limitations and strengths of each to be identified and utilised to provide a bog surface wetness (BSW) record for both sites. Age-depth models take into account the potential for accumulation rates to vary with bog vegetation. The records from each site have been used to derive a combined BSW record that displays changes to a wetter/cooler climate from ca. AD 30 (1920 BP), ca. AD 310 (1640 BP), ca. AD 805 (1145 BP), ca. AD 1040 (910 BP) and ca. AD 1300 (650 BP). Changes follow closely those identified in a northern Britain composite BSW record and largely correspond with lake-level data in central France suggesting the main changes in water balance were coherent over a large region. Correspondence with increases in IRD and slower Iceland-Scotland Overflow Water (ISOW) suggests that these changes were related to oceanic forcing influencing the track of dominant westerly air flow over Ireland. Copyright © 2007 John Wiley & Sons, Ltd.

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Published date: 9 August 2007
Keywords: holocene, palaeoclimate, peat, Ireland, multiproxy


Local EPrints ID: 57666
ISSN: 0267-8179
PURE UUID: 7a787dab-1115-46d4-a0b4-200d09b34dd8

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Date deposited: 11 Aug 2008
Last modified: 17 Jul 2017 14:28

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Author: Antony Blundell
Author: Dan J. Charman
Author: Keith Barber

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