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    The Relations Between Carbon Isotope Composition and Apparent Age of Freshwater Tufaceous Sediments

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    Author
    Pazdur, Anna
    Issue Date
    1988-01-01
    Keywords
    sedimentary petrology
    ratios
    southern Poland
    relative age
    Poland
    chemically precipitated rocks
    tufa
    calcareous composition
    England
    Great Britain
    United Kingdom
    Central Europe
    Europe
    Western Europe
    geochronology
    carbon
    dates
    isotopes
    stable isotopes
    absolute age
    sedimentary rocks
    carbonate rocks
    C 13
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    Citation
    Pazdur, A. (1988). The relations between carbon isotope composition and apparent age of freshwater tufaceous sediments. Radiocarbon, 30(1), 7-18.
    Publisher
    American Journal of Science
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/653151
    DOI
    10.1017/S0033822200043915
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    This paper presents a synthetic approach to 14C dating of calcareous tufa, based on statistical analysis of correlations betwen lithologic type of tufaceous sediment, carbon isotope composition, and apparent age. Experimental data on several profiles from southern Poland and the United Kingdom reveal either constant or systematically changing values of apparent age. Constant value of apparent age in a profile can be attributed to calcareous muds precipitated from stagnant or low-energy water, and to tufas precipitated from turbulent water (oncoids, stromatolites, moss travertines) which are characterized by lack of significant correlation between delta-13C and 14C age of tufa carbonate. It was found that the relation between the apparent age of tufaceous sediment and delta-13C value of tufa carbonate depends on lithologic type of tufa. Phenomenological equations describing the dependence of apparent age upon delta-13C are given, and applied to estimate true ages of tufas from Gliczarow (southern Poland) and Folkestone (United Kingdom).
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200043915
    Scopus Count
    Collections
    Radiocarbon, Volume 30, Number 1 (1988)

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