Holocene tephrostratigraphy of varved sediment records from Lakes Tiefer See (NE Germany) and Czechowskie (N Poland)

QUATERNARY SCIENCE REVIEWS

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Article

Wulf, Sabine^1,2  Draeger, Nadine¹  Ott, Florian¹  Serb, Johanna¹  Appelt, Oona³  Guomundsdottir, Esther⁴  van den Bogaard, Christel⁵  Slowinski, Michal⁶  Blaszkiewicz, Miroslaw⁶  Brauer, Achim¹ 

[1] GFZ German Res Ctr Geosci, Sect Climate Dynam & Landscape Evolut 5 2, D-14473 Potsdam, Germany

[2] Senckenberg Res Inst & Nat Hist Museum, BIK F, Evolut & Climate TSP6, Senckenberganlage 25, D-60325 Frankfurt, Germany

[3] GFZ German Res Ctr Geosci, Sect Chem & Phys Earth Mat 3 3, D-14473 Potsdam, Germany

[4] Univ Iceland, Inst Earth Sci, Fac Earth Sci, Strulugata 7, IS-101 Reykjavik, Iceland

[5] GEOMAR, Helmholtz Ctr Ocean Res Kiel, Wischhofstr 1-3, D-24148 Kiel, Germany

[6] Polish Acad Sci, Inst Geog & Spatial Org, Dept Environm Resources & Geohazards, Kopernika 19, PL-87100 Torun, Poland

关键词: Cryptotephra;    Icelandic volcanism;    Tiefer See;    Lake Czechowskie;    Lateglacial;    Holocene;    ICLEA;   

DOI  :  10.1016/j.quascirev.2015.11.007

来源: Elsevier

【 摘 要 】

A detailed Holocene tephrostratigraphic framework has been developed for two predominately varved lake sediment sequences from NE Germany (Lake Tiefer See) and central N Poland (Lake Czechowskie). A total of thirteen tephras and cryptotephras of Icelandic provenance were detected and chemically fingerprinted in order to define correlatives and to integrate known tephra ages into the sediment chronologies. Out of these, three cryptotephras (Askja-AD1875, Askja-S and Hasseldalen) were identified in both records, thus allowing a detailed synchronization of developing high-resolution palaeoenvironmental proxy data. The early Holocene Saksunarvatn Ash layer and the middle Holocene Lairg-B and Hekla-4 cryptotephras in Lake Tiefer See are further important anchor points for the comparison with other high-resolution palaeoclimate records in Central and Northern Europe. Tentative correlations of cryptotephras have been made with a historical basaltic Grimsvotn eruption (similar to AD890 - AD856) and three late Holocene rhyolitic eruptions, including the 2.1 ka Glen Garry and two unknown high-silicic cryptotephras of probably Icelandic provenance (similar to 1.9 cal ka BP). (C) 2015 Elsevier Ltd. All rights reserved.

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