globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2014.04.002
Scopus记录号: 2-s2.0-84925862079
论文题名:
Revisiting the Y-3 tephrostratigraphic marker: A new diagnostic glass geochemistry, age estimate, and details on its climatostratigraphical context
作者: Albert P.G.; Hardiman M.; Keller J.; Tomlinson E.L.; Smith V.C.; Bourne A.J.; Wulf S.; Zanchetta G.; Sulpizio R.; Müller U.C.; Pross J.; Ottolini L.; Matthews I.P.; Blockley S.P.E.; Menzies M.A.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 118
起始页码: 105
结束页码: 121
语种: 英语
英文关键词: Bayesian age modelling ; Ionian Sea ; Mediterranean tephrochronology ; Stadial conditions ; Tenaghi Philippon ; Y-3 tephra
Scopus关键词: Isotopes ; Stratigraphy ; Age modelling ; Ionian sea ; Stadial conditions ; Tenaghi Philippon ; Tephrochronology ; Glass
英文摘要: The 'Y-3' tephra is a crucial stratigraphic marker within the central Mediterranean region that falls close to the Marine Isotope Stage 3/2 transition and a cooling event proposed as a correlative of the North Atlantic Heinrich Stadial 3 (HS3). Consequently, this tephra offers great potential to assess any leads and lags in environmental responses to this abrupt climatic transition. New grain-specific glass analysis (EMPA and LA-ICP-MS) of the type locality Y-3 tephra recorded in the Ionian Sea confirms its origin from Campi Flegrei (CF) but reveals that it is compositionally different from the previously suggested proximal equivalent the VRa eruptive unit (Verdolino Valley, CF). Consequently, the 40Ar/39Ar age of the VRa should not be exported distally to the Y-3 tephra. Instead, we propose a new robust age for the Y-3 tephra following its identification in the Tenaghi Philippon sedimentary record, NE Greece. A Bayesian-based 14C age model from Tenaghi Philippon provides a distal age of 28,680-29,420 cal yrs BP for the Y-3 tephra. The identification of this tephra in NE Greece markedly extends its known eastern dispersal. Whilst its stratigraphic position falls within the latter part of a period of low tree pollen percentages related to dry stadial conditions. This new age and environmental context suggest that this marker postdates the onset of HS3 in the eastern Mediterranean region by ~2300 years. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60062
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作者单位: Department of Earth Sciences, Royal Holloway University of London, Surrey, United Kingdom; Research Laboratory for Archaeology and the History of Art, Oxford University, Oxford, United Kingdom; Centre for Quaternary Research, Department of Geography, Royal Holloway University of London, Surrey, United Kingdom; Department of Geography, University of Portsmouth, United Kingdom; Institute of Geosciences, Mineralogy and Geochemistry, Albert-Ludwigs-University Freiburg, Albertstraße 23b, Freiburg, Germany; Department of Geology, Trinity College Dublin, College Green, Dublin 2, Ireland; Department of Geography, Swansea University, Singleton Park, Swansea, Wales, United Kingdom; Helmholtz Centre Potsdam, German Research Centre for Geosciences, Section 5.2 - Climate Dynamics and Landscape Evolution, Telegrafenberg, Potsdam, Germany; Dipartimento di Scienze della Terra, via S. Maria 53, Pisa, Italy; Dipartimento di Scienze della Terra e Geoambientali, Universitá di Bari, via Orabona 4, Bari, Italy; Biodiversity and Climate Research Centre, Senckenberganlage 25, Frankfurt, Germany; Paleoenvironmental Dynamics Group, Institute of Earth Sciences, Heidelberg University, Im Neuenheimer Feld 234, Heidelberg, Germany; Consiglio Nazionale delle Ricerche (CNR), Istituto di Geoscienze e Georisorse (IGG), Unità di Pavia, Pavia, Italy

Recommended Citation:
Albert P.G.,Hardiman M.,Keller J.,et al. Revisiting the Y-3 tephrostratigraphic marker: A new diagnostic glass geochemistry, age estimate, and details on its climatostratigraphical context[J]. Quaternary Science Reviews,2015-01-01,118
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