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PANGAEA tech-keyword 'LEZ' (10 data sets)

Mostrando recursos 1 - 15 de 15

  1. Landscape evolution and volcanic activity in the Eifel reconstruction from maar sediments of the last 70.000 years

    Sirocko, Frank; Knapp, Hannes; Dreher, Frank; Förster, Michael W; Albert, Johannes; Brunck, Heiko; Veres, Daniel; Dietrich, Stephan; Zech, Michael; Hambach, Ulrich; Röhner, Marieke; Rudert, Saskia; Schwiebus, Klaus; Adams, Christel; Sigl, Petra
    Laminated sediment records from several maar lakes and dry maar lakes of the Eifel (Germany) reveal the history of climate, weather, environment, vegetation, and land use in central Europe during the last 60,000 years. The time series of the last 30,000 years is based on a continuous varve counted chronology, the MIS3 section is tuned to the Greenland ice - both with independent age control from 14C dates. Total carbon, pollen and plant macrofossils are used to synthesize a vegetation-stack, which is used together with the stacks from seasonal varve formation, flood layers, eolian dust content and volcanic tephra layers...

  2. TOC content in sediment core AU2

    Sirocko, Frank; Knapp, Hannes; Dreher, Frank; Förster, Michael W; Albert, Johannes; Brunck, Heiko; Veres, Daniel; Dietrich, Stephan; Zech, Michael; Hambach, Ulrich; Röhner, Marieke; Rudert, Saskia; Schwiebus, Klaus; Adams, Christel; Sigl, Petra

  3. Dust-stack 2013 of combined sediment record ELSA

    Sirocko, Frank; Dietrich, Stephan; Veres, Daniel; Grootes, Pieter Meiert; Schaber-Mohr, Katja; Seelos, Klemens; Nadeau, Marie-Josée; Kromer, Bernd; Rothacker, Leo; Röhner, Marieke; Krbetschek, Matthias R; Appleby, Peter G; Hambach, Ulrich; Rolf, Christian; Sudo, Masafumi; Grim, Stephanie
    During the last twelve years the ELSA Project (Eifel Laminated Sediment Archive) at Mainz University has drilled a total of about 52 cores from 27 maar lakes and filled-in maar basins in the Eifel/Germany. Dating has been completed for the Holocene cores using 6 different methods (210Pb and 137Cs activities, palynostratigraphy, event markers, varve counting, 14C). In general, the different methods consistently complement one another within error margins. Event correlation was used for relating typical lithological changes with historically known events such as the two major Holocene flood events at 1342 AD and ca 800 BC. Dating of MIS2-MIS3 core...

  4. Dust-stack 2009 of combined sediment record ELSA

    Seelos, Klemens; Sirocko, Frank; Dietrich, Stephan
    The last glacial cycle in Central Europe is dominated by processes of aeolian dust transport and accumulation. These dust deposits are preserved in soils and lake sediments and provide detailed information about the climate variability during cold and dry periods. Especially the transitions from warm into cold periods are characterized by turbulent climate conditions. The main problems of terrestrial paleoclimate reconstructions are the completeness of the core material and a sampling resolution. To detect single dust storms we use a particle detection method, which allows high resolution, sub-annual analyses of sediment structures in undisturbed samples. The ELSA (Eifel Laminated Sediment...

  5. Varve-stack of combined sediment record ELSA

    Sirocko, Frank; Knapp, Hannes; Dreher, Frank; Förster, Michael W; Albert, Johannes; Brunck, Heiko; Veres, Daniel; Dietrich, Stephan; Zech, Michael; Hambach, Ulrich; Röhner, Marieke; Rudert, Saskia; Schwiebus, Klaus; Adams, Christel; Sigl, Petra

  6. Flood-stack of combined sediment record ELSA

    Brunck, Heiko; Sirocko, Frank; Albert, Johannes
    This study reconstructs the main flood phases in central Europe from event layers in sediment cores from Holocene Eifel maar lakes and Pleistocene dry maar structures. These reconstructions are combined with recent gauge time-series to cover the entire precipitation extremes of the last 60 000 years. In general, Eifel maar sediments are perfectly suited for the preservation of event layers since the deep water in the maar lakes is seasonal anoxic and therefore, bioturbation is low. However, the preservation of annual lamination is only preserved in Holzmaar and Ulmener Maar; the other cores are dated by 14C, magnetostratigraphy, tephra markers...

  7. Dust record of sediment core DE3

    Sirocko, Frank; Knapp, Hannes; Dreher, Frank; Förster, Michael W; Albert, Johannes; Brunck, Heiko; Veres, Daniel; Dietrich, Stephan; Zech, Michael; Hambach, Ulrich; Röhner, Marieke; Rudert, Saskia; Schwiebus, Klaus; Adams, Christel; Sigl, Petra

  8. Tephra-stack of combined sediment record ELSA

    Förster, Michael W; Sirocko, Frank
    Tephra layers of individual volcanic eruptions are traced in several cores from Eifel maar lakes, drilled between 1998 and 2014 by the Eifel Laminated Sediment Archive (ELSA). All sediment cores are dated by 14C and tuned to the Greenland interstadial succession. Tephra layers were characterized by the petrographic composition of basement rock fragments, glass shards and characteristic volcanic minerals. 10 marker tephra, including the well-established Laacher See Tephra and Dümpelmaar Tephra can be identified in the cores spanning the last glacial cycle. Older cores down to the beginning of the Elsterian, show numerous tephra sourced from Strombolian and phreatomagmatic eruptions,...

  9. Pollen-stack of combined sediment record ELSA

    Sirocko, Frank; Knapp, Hannes; Dreher, Frank; Förster, Michael W; Albert, Johannes; Brunck, Heiko; Veres, Daniel; Dietrich, Stephan; Zech, Michael; Hambach, Ulrich; Röhner, Marieke; Rudert, Saskia; Schwiebus, Klaus; Adams, Christel; Sigl, Petra

  10. Macro remains of combined sediment record ELSA

    Sirocko, Frank; Knapp, Hannes; Dreher, Frank; Förster, Michael W; Albert, Johannes; Brunck, Heiko; Veres, Daniel; Dietrich, Stephan; Zech, Michael; Hambach, Ulrich; Röhner, Marieke; Rudert, Saskia; Schwiebus, Klaus; Adams, Christel; Sigl, Petra

  11. Record of pollen, silt and greyscale stack from the Eifel Laminated Sediment Archive (ELSA)

    Sirocko, Frank; Seelos, Klemens; Schaber, Katja; Rein, Bert; Dreher, Frank; Diehl, Markus; Lehne, Rouwen; Jäger, Knut; Krbetschek, Matthias R; Degering, Detlev
    Investigating the processes that led to the end of the last interglacial period is relevant for understanding how our ongoing interglacial will end, which has been a matter of much debate. A recent ice core from Greenland demonstrates climate cooling from 122,000 years ago driven by orbitally controlled insolation, with glacial inception at 118,000 years ago. Here we present an annually resolved, layer-counted record of varve thickness, quartz grain size and pollen assemblages from a maar lake in the Eifel (Germany), which documents a late Eemian aridity pulse lasting 468 years with dust storms, aridity, bushfire and a decline of...

  12. Relative abundance of pollen recorded in sediment profile Ei2

    Sirocko, Frank; Dreher, Frank

  13. Greyscale stack of four profiles from the Eifel Laminated Sediment Archive

    Sirocko, Frank; Schaber, Katja

  14. Silt content (20-63 µm) of light particles in sediment profile HL2

    Sirocko, Frank; Seelos, Klemens

  15. Relative abundance of pollen recorded in sediment profile HL2

    Sirocko, Frank; Dreher, Frank

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