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    • Radiocarbon, Volume 36 (1994)
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    Pollen Concentrate Preparation from Highly Organic Holocene Peat and Lake Deposits for AMS Dating

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    Author
    Richardson, Fiona
    Hall, Valerie A.
    Issue Date
    1994-01-01
    Keywords
    lacustrine environment
    Holocene
    miospores
    palynomorphs
    pollen
    accelerator mass spectroscopy
    mass spectroscopy
    spectroscopy
    peat
    organic residues
    sample preparation
    sediments
    Cenozoic
    Quaternary
    C 14
    carbon
    dates
    isotopes
    radioactive isotopes
    absolute age
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    Citation
    Richardson, F., & Hall, V. A. (1994). Pollen concentrate preparation from highly organic Holocene peat and lake deposits for AMS dating. Radiocarbon, 36(3), 407-412.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/653358
    DOI
    10.1017/S0033822200014582
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    Many of the problems inherent with conventional 14C dating of lake and peat deposits are eliminated by AMS dating of pollen concentrates. Published work describes production of pollen concentrates through expulsion of most of the deposit matrix by repeated deflocculation, selective sieving and final retention of the largest subfossil pollen taxa. Less suited to pollen concentrate production are the highly organic peats and lake muds from the British Isles and Europe. In this study we tested the combined effectiveness of physical, chemical and microbiological degradation and elimination techniques for pollen concentrate production on highly organic peats and a lake mud. We also reviewed methods of enhancing concentrations of smaller sub-fossil pollen grains. Here we present a novel method of assessing AMS dating precision of pollen concentrates by comparing their calibrated dates with a volcanic event of known historical age.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200014582
    Scopus Count
    Collections
    Radiocarbon, Volume 36, Number 3 (1994)

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