• Login
    View Item 
    •   Home
    • Journals and Magazines
    • Radiocarbon
    • Radiocarbon, Volume 44 (2002)
    • Radiocarbon, Volume 44, Number 3 (2002)
    • View Item
    •   Home
    • Journals and Magazines
    • Radiocarbon
    • Radiocarbon, Volume 44 (2002)
    • Radiocarbon, Volume 44, Number 3 (2002)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    On Correcting 14C Ages of Gastropod Shell Carbonate for Fractionation

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    4074-3745-1-PB.pdf
    Size:
    122.0Kb
    Format:
    PDF
    Download
    Author
    Pigati, Jeffrey S.
    Issue Date
    2002-01-01
    Keywords
    uncertainty
    extinct taxa
    isotope fractionation
    corrections
    isotope ratios
    living taxa
    methods
    C 14
    carbon
    isotopes
    radioactive isotopes
    shells
    Invertebrata
    Mollusca
    C 13 C 12
    stable isotopes
    absolute age
    carbonates
    Gastropoda
    Show allShow less
    
    Metadata
    Show full item record
    Citation
    Pigati, J. S. (2002). On correcting 14C ages of gastropod shell carbonate for fractionation. Radiocarbon, 44(3), 755-760.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/654550
    DOI
    10.1017/S0033822200032203
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    Correcting the 14C age of a sample for fractionation is straightforward if the measured carbon was derived entirely from the atmosphere, either directly or through chemical and/or biological reactions that originated with atmospheric carbon. This correction is complicated in the case of gastropods that incorporate carbon from limestone or secondary carbonate (e.g. Soil carbonate) during shell formation. The carbon isotopic composition of such gastropod shells is determined by fractionation, as well as mixing of carbon from sources with different isotopic values. Only the component of shell carbonate derived from atmospheric carbon should be corrected for fractionation. In this paper, the author derives a new expression for correcting the measured 14C activity of gastropod shells for fractionation, and describe an iterative approach that allows the corrected 14C activity and the fraction of shell carbonate derived from atmospheric carbon to be determined simultaneously.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200032203
    Scopus Count
    Collections
    Radiocarbon, Volume 44, Number 3 (2002)

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.