globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2015.05.026
Scopus记录号: 2-s2.0-84935879540
论文题名:
Lateglacial and early Holocene climates of the Atlantic margins of Europe: Stable isotope, mollusc and pollen records from Orkney, Scotland
作者: Whittington G.; Edwards K.J.; Zanchetta G.; Keen D.H.; Bunting M.J.; Fallick A.E.; Bryant C.L.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 122
起始页码: 112
结束页码: 130
语种: 英语
英文关键词: Britain ; Europe ; Greenland ; Ireland ; Isotopes ; Molluscs ; North Atlantic ; Orkney ; Palaeoclimates ; Palynology
Scopus关键词: Deposits ; Fertilizers ; Isotopes ; Molluscs ; Britain ; Europe ; Greenland ; Ireland ; North Atlantic ; Orkney ; Palaeoclimates ; Palynology ; Glacial geology ; Devensian ; glacial environment ; Holocene ; ice core ; late glacial ; meadow ; mollusc ; paleoclimate ; paleoenvironment ; palynology ; pollen ; Preboreal ; proxy climate record ; stable isotope ; taphonomy ; Arctic ; Atlantic Ocean ; Atlantic Ocean (North) ; Europe ; Greenland ; Greenland Ice Sheet ; Mollusca
英文摘要: The margins of mainland Europe, and especially those areas coming under the influence of North Atlantic weather systems, are ideally placed to record changing palaeoclimates. Cores from an infilled lake basin at Crudale Meadow in Mainland, Orkney, revealed basal deposits of calcareous mud ('marl') beneath sedge peat. Stable isotope, palynological and molluscan analyses allowed the establishment of palaeoenvironmental changes through the Devensian Lateglacial and the early Holocene. The δ18Omarl record exhibited the existence of possibly four climatic oscillations in the Lateglacial (one of which, within event cf. GI-1c, is not often commented upon), as well as the Preboreal Oscillation and other Holocene perturbations. The cold episodes succeeding the Preboreal Oscillation were demarcated conservatively and one of these (event C5, ~11.0ka) may have previously been unremarked, while the putative 9.3 and 8.2ka events seem not to produce corresponding palynologically visible floristic changes. The events at Crudale Meadow are consistent with those recorded at other sites from Britain, Ireland and elsewhere, and can be correlated with isotopic changes shown by the Greenland ice cores. The multi-proxy approach enriches the environmental reconstructions from the site, although the synchronicity of the response of the various proxies is sometimes equivocal, depending upon the time period concerned, taphonomy, and the nature of the deposits. The site may contain the most northerly Lateglacial isotope record from northwest Europe, and it has yielded one of the best archives for the demonstration of abrupt early Holocene events within Britain. © 2015 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59883
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作者单位: School of Geography and Geosciences, University of St Andrews, St Andrews, Fife, United Kingdom; Department of Geography and Environment, School of Geosciences, University of Aberdeen, Elphinstone Road, Aberdeen, United Kingdom; Department of Archaeology, School of Geosciences, University of Aberdeen, Elphinstone Road, Aberdeen, United Kingdom; Department of Earth Sciences, University of Pisa, Via S. Maria 53, Pisa, Italy; Institute of Archaeology and Antiquity, University of Birmingham, Edgbaston, Birmingham, United Kingdom; Department of Geography, Environment and Earth Sciences, University of Hull, Cottingham Road, Hull, United Kingdom; Scottish Universities Environmental Research Centre, East Kilbride, United Kingdom; NERC Radiocarbon Facility (Environment), Scottish Enterprise Technology Park, Rankine Avenue, East Kilbride, United Kingdom

Recommended Citation:
Whittington G.,Edwards K.J.,Zanchetta G.,et al. Lateglacial and early Holocene climates of the Atlantic margins of Europe: Stable isotope, mollusc and pollen records from Orkney, Scotland[J]. Quaternary Science Reviews,2015-01-01,122
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