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    AMS Radiocarbon and Varve Chronology from the Annually Laminated Sediment Record of Lake Meerfelder Maar, Germany

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    Author
    Brauer, Achim
    Endres, Christoph
    Zolitschka, Bernd
    Negendank, Jörg W.
    Issue Date
    2000-01-01
    Keywords
    Lake Meerfelder Maar
    laminations
    Lake Holzmaar
    relative age
    accelerator mass spectra
    planar bedding structures
    sedimentary structures
    varves
    Germany
    mass spectra
    spectra
    Holocene
    correlation
    chronology
    Central Europe
    Europe
    Cenozoic
    Quaternary
    C 14
    carbon
    dates
    isotopes
    radioactive isotopes
    absolute age
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    Citation
    Brauer, A., Endres, C., Zolitschka, B., & Negendank, J. F. (2000). AMS radiocarbon and varve chronology from the annually laminated sediment record of Lake Meerfelder Maar, Germany. Radiocarbon, 42(3), 355-368.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/654431
    DOI
    10.1017/S0033822200030307
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    The Holocene varve chronology of annually laminated sediment sequences from Lake Meerfelder Maar agree for most of the record with dendro-calibrated accelerator mass spectronomy radiocarbon dates from the same site. Only between 9710 and 9950 cal BP does an offset of 240 yr appear between both data sets. At this position, a micro-disturbance in the varve succession has been detected by thin section analyses and was quantified in terms of missing varves. A comparison with the nearby record from Lake Holzmaar, as well providing high resolution AMS 14C and varve chronologies, revealed that such gaps (ca. 2% in time for the entire Holocene) are exceptional for these long-varved maar lake records. Moreover, since sections of missing years appear for both profiles at different stratigraphic positions, a combination of both the Meerfelder Maar and Holzmaar records enables us to bridge erroneous zones in varve chronologies. This confirms the high potential of two long-varved records in close vicinity to each other for the elimination of dating errors and for increasing chronological precision at a time resolution that is normally regarded as within the counting errors. Late Glacial varve and 14C data beyond the dendro-calibration from Meerfelder Maar and their tentative tele-connections to other high resolution data sets reveal unexplained age discrepancies in the calendar year time scale of about 200 years.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200030307
    Scopus Count
    Collections
    Radiocarbon, Volume 42, Number 3 (2000)

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