globalchange  > 气候减缓与适应
DOI: 10.1016/j.quascirev.2018.03.035
Scopus记录号: 2-s2.0-85045087419
论文题名:
Ultra-distal fine ash occurrences of the Icelandic Askja-S Plinian eruption deposits in Southern Carpathian lakes: New age constraints on a continental scale tephrostratigraphic marker
作者: Kearney R.; Albert P.G.; Staff R.A.; Pál I.; Veres D.; Magyari E.; Bronk Ramsey C.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 188
起始页码: 174
结束页码: 182
语种: 英语
英文关键词: Askja-S tephra ; Carpathian mountains ; Tephrostratigraphy ; Ultra-distal cryptotephra
Scopus关键词: Sedimentology ; Stratigraphy ; Askja-S tephra ; Carpathian mountains ; Continental scale ; Plinian eruption ; Sedimentary records ; Spatiotemporal variability ; Tephrostratigraphy ; Ultra-distal cryptotephra ; Lakes ; Bayesian analysis ; depositional sequence ; Holocene ; paleoenvironment ; particle size ; proxy climate record ; radiocarbon dating ; spatiotemporal analysis ; tephra ; tephrochronology ; volcanic ash ; volcanic eruption ; Askja ; Carpathians ; Iceland ; Romania
英文摘要: Here we present the results of the first cryptotephra investigation of two Late glacial-Holocene lake records from the Southern Carpathian Mountains in Romania, Lake Brazi and Lake Lia. The discovery of an important Icelandic tephrostratigraphic marker, the Askja-S, in the sedimentary records of both sites significantly extends the known ash dispersal from this Plinian eruption. Bayesian age-depth modelling of available radiocarbon (14C) data from both sedimentary records allows us to further refine the depositional age of this ultra-distal tephra. In combination with age constraints on the tephra from other well-dated European sites, we produce an updated age for this key tephrostratigraphic marker of 10,824 ± 97 cal yrs BP (95.4% range). The Askja-S tephra is stratigraphically positioned after the palaeoenvironmental proxy response to the Preboreal Oscillation at both sites. The widespread distribution of this tephra across Europe offers the potential to assess spatio-temporal variability of this climatic signal. The discovery of the Askja-S in lake records from the Southern Carpathians highlights the likelihood of finding other ultra-distal (Icelandic) cryptotephra marker layers within the region. Additionally, given the location of the Carpathian region, it offers the opportunity to further enhance and integrate tephrostratigraphic frameworks of north-western Europe with those of the Mediterranean and Anatolia regions, which will enable a more precise comparison of palaeoenvironmental archives across Europe. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112216
Appears in Collections:气候减缓与适应

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作者单位: Research Laboratory for Archaeology and the History of Art, School of Archaeology, University of Oxford, 1 South Parks Road, Oxford, OX1 3TG, United Kingdom; Scottish Universities Environmental Research Centre, University of Glasgow, Rankine Avenue, East Kilbride, South Lanarkshire G75 0QF, United Kingdom; Isotope Climatology and Environmental Research Center (ICER), Institute for Nuclear Research, Hungarian Academy of Sciences, Bem tér 18/c, Debrecen, H-4026, Hungary; Eötvös Lóránd University, MTA-MTM-ELTE Research Group for Paleontology, Department of Environmental and Landscape Geography, Pázmány P. stny. 1/C, Budapest, H-1117, Hungary; Romanian Academy, Institute of Speleology, Clinicilor 5, Cluj-Napoca, 400006, Romania

Recommended Citation:
Kearney R.,Albert P.G.,Staff R.A.,et al. Ultra-distal fine ash occurrences of the Icelandic Askja-S Plinian eruption deposits in Southern Carpathian lakes: New age constraints on a continental scale tephrostratigraphic marker[J]. Quaternary Science Reviews,2018-01-01,188
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