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  • 2010-2014  (2)
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  • 1
    facet.materialart.
    Unknown
    A high-quality annually laminated sequence from Lake Belau, Northern Germany: Revised chronology and its implications for palynological and tephrochronological studies (2012)
    SAGE Publications
    In:  The Holocene, 22 (12). pp. 1413-1426.
    Details
    Publication Date: 2016-05-25
    Description: The annually laminated record of Lake Belau offers an exceptional opportunity to investigate with high temporal resolution Holocene environmental change, aspects of climate history and human impact on the landscape. A new chronology based on varve counts, 14C-datings and heavy metal history has been established, covering the last 9400 years. Based on multiple varve counting on two core sequences, the easily countable laminated section spans about 7850 varve years (modelled age range c. 9430 to 1630 cal. BP). Not all of the record is of the same quality but approximately 69% of the varves sequence is classified to be of high quality and only c. 5% of low quality. The new chronology suggests dates generally c. 260 years older than previously assumed for the laminated section of the record. The implications for the vegetation and land-use history of the region as well as revised datings for pollen stratigraphical events are discussed. Tephra analysis allowed the identification of several cryptotephra layers. New dates for volcanic eruptions are presented for the Lairg B event (c. 6848 cal. BP, 2s range 6930–6713 cal. BP), the Hekla 4 event (c. 4396 cal. BP, 2s range 4417–4266 cal. BP), and Hekla 3 eruption (c. 3095 cal. BP, 2s range 3120–3068 cal. BP).
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1177/0959683612449756
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 2
    facet.materialart.
    Unknown
    Late Glacial to mid-Holocene palaeoclimate development of Southern Greece inferred from the sediment sequence of Lake Stymphalia (NE-Peloponnese) (2013)
    In:  Quaternary International
    Details
    Publication Date: 2020-02-12
    Description: The sedimentary sequence of Lake Stymphalia (NE-Peloponnese) for the first time sheds light on the palaeoclimate development of Southern Greece from 15 to 5 ka BP. New geochemical data based on high-resolution X-ray fluorescence scanning provide in-situ, and continuous analysis of predefined element suites on split-core surfaces. Variations of elements over time were assessed constructing correlation matrices based on the calculation of Pearson correlation coefficients. The element suite includes Al, Si, K, Ca, Ti, Mn, Fe, Zn, Rb, Sr, and Zr. A major result includes that changes in element behaviour are related to hydrological changes in the catchment (precipitation), lake level status, and evaporation (insolation/solar activity), and are ultimately driven by climate. Major trends/shifts in elemental ratios correspond to the climate development in the Eastern Mediterranean region. Based on correlation of Rb/Sr, reflecting wet/dry climates, with foraminiferal proxies of marine core LC-21 from the Southern Aegean Sea, and the stable oxygen-isotope record of Soreq Cave (Israel), the Bølling-Allerød, the Younger Dryas, and the 8.2 ka cold event were identified.
    Keywords: 550 - Earth sciences
    Type: info:eu-repo/semantics/article
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