DOI: 10.1016/j.quascirev.2013.10.024
Scopus记录号: 2-s2.0-84887908666
论文题名: Was there a '4.2ka event' in Great Britain and Ireland? Evidence from the peatland record
作者: Roland T.P. ; Caseldine C.J. ; Charman D.J. ; Turney C.S.M. ; Amesbury M.J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 83 起始页码: 11
结束页码: 27
语种: 英语
英文关键词: 2.8ka event
; 4.2ka event
; Abrupt and extreme climate change
; Great Britain and Ireland
; Hekla 4
; Multi-proxy
; Peatlands
; Testate amoebae
Scopus关键词: 2.8ka event
; 4.2ka event
; Extreme climates
; Hekla 4
; Ireland
; Multi proxies
; Peat land
; Testate amoebae
; Biodegradation
; Peat
; Protozoa
; Wetlands
; Climate change
; archaeological evidence
; climate variation
; humification
; paleoclimate
; paleoenvironment
; paleohydrology
; peatland
; proxy climate record
; Quaternary
; reconstruction
; Ireland
; United Kingdom
英文摘要: Palaeoenvironmental and archaeological data from several regions around the world show evidence of a multi-centennial climatic event occurring approximately 4200cal yr BP (4.2ka). Whilst the climatic change and/or impact of the 4.2ka event is clear in certain regions, such as western Asia, evidence for the event has yet to be fully evaluated in northwest Europe. This study presents high-resolution, multi-proxy palaeoclimate records from sites in Northern Ireland, ideally located for an objective examination of the nature of the event in Great Britain and Ireland within the broader context of mid-Holocene climate change c. 6.5-2.5ka. The peatlands of northwest Europe possess considerable potential for the examination of climatic change in the North Atlantic region, demonstrated by the range of palaeohydrological proxy data generated during this study (peat humification, plant macrofossil and testate amoebae analyses) supported by a high-resolution chronology (including comprehensive AMS 14C and tephrochronology). The inter-site testate amoebae reconstructions appear coherent and were combined to produce a regional climatic record, in marked contrast to the plant macrofossil and peat humification records that appear climatically complacent. The testate amoebae reconstruction, however, provides no compelling evidence for a 4.2ka event signal and is consistent with previously reported studies from across northwest Europe, suggesting the origin and impact of this event is spatially complex. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60420
Appears in Collections: 过去全球变化的重建
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作者单位: Palaeoenvironmental Laboratory (PLUS), Geography and Environment, University of Southampton, United Kingdom; Geography, College of Life and Environmental Sciences, University of Exeter, United Kingdom; School of Biological, Earth and Environmental Sciences, University of New South Wales, Australia
Recommended Citation:
Roland T.P.,Caseldine C.J.,Charman D.J.,et al. Was there a '4.2ka event' in Great Britain and Ireland? Evidence from the peatland record[J]. Quaternary Science Reviews,2014-01-01,83