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    14C Ages of a Varved Last Glacial Maximum Section Off Pakistan

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    Author
    von Rad, Ulrich
    Sarnthein, Michael
    Grootes, Pieter M.
    Doose-Rolinski Heidi
    Erbacher, Jochen
    Issue Date
    2003-01-01
    Keywords
    Arabian Sea
    continental margin
    Globigerinoides ruber
    hemipelagic environment
    turbidite
    Pakistan
    Indian Ocean
    O 18 O 16
    Globigerinacea
    Globigerinidae
    Globigerinoides
    Rotaliina
    accelerator mass spectra
    GISP2
    planar bedding structures
    sedimentary structures
    varves
    cores
    oxygen
    marine environment
    marine sediments
    Foraminifera
    Protista
    mass spectra
    spectra
    isotope ratios
    microfossils
    correlation
    last glacial maximum
    Pleistocene
    upper Pleistocene
    sediments
    Asia
    Cenozoic
    Quaternary
    Indian Peninsula
    C 14
    carbon
    isotopes
    radioactive isotopes
    Invertebrata
    stable isotopes
    absolute age
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    Citation
    von Rad, U., Sarnthein, M., Grootes, P. M., Doose-Rolinski, H., & Erbacher, J. (2003). 14C ages of a varved last glacial maximum section off Pakistan. Radiocarbon, 45(3), 467-477.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/654692
    DOI
    10.1017/S0033822200032811
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    In a core off Pakistan, we obtained 38 14C analyses by accelerator mass spectrometry (AMS) from a 4.4-m-thick, expanded, annually-laminated Last Glacial Maximum (LGM) section, bracketed by bioturbated intervals ascribed to the Heinrich-1 (H1) and Heinrich-2 (H2) equivalent events (52 14C analyses between 24-15 kyr BP). A floating varve age scale, anchored to the oxygen isotope record of the layer-counted GISP2 ice core at the H2/LGM boundary, results in an annually dated record for the LGM from 23,450-17,900 cal BP. The floating varve scale of the LGM provides us with a tentative calibration of local marine AMS 14C age dates to calendar years.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200032811
    Scopus Count
    Collections
    Radiocarbon, Volume 45, Number 3 (2003)

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