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    Middle to late Miocene growth of the North Pamir

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    Tajik Basin_uploading.pdf
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    Description:
    Final Accepted Manuscript
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    Author
    Li, Lin
    Dupont‐Nivet, Guillaume
    Najman, Yani
    Kaya, Mustafa
    Meijer, Niels
    Poujol, Marc
    Aminov, Jovid
    Affiliation
    Department of Geosciences, University of Arizona
    Issue Date
    2021-11-08
    Keywords
    lithostratigraphy
    magnetostratigraphy
    Pamir
    provenance
    stable isotopes
    Tajik Basin
    
    Metadata
    Show full item record
    Publisher
    Wiley
    Citation
    Li, L., Dupont-Nivet, G., Najman, Y., Kaya, M., Meijer, N., Poujol, M., & Aminov, J. (2021). Middle to late Miocene growth of the North Pamir. Basin Research.
    Journal
    Basin Research
    Rights
    © 2021 International Association of Sedimentologists and European Association of Geoscientists and Engineers and John Wiley & Sons Ltd.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    How and when the Pamir formed remains an open question. This study explores Pamir tectonics recorded in a sedimentary section in the eastern Tajik Basin. A prominent lithofacies change that has been recognised regionally is assigned to the middle Miocene (13.5 Ma based on preferred magnetostratigraphic correlation). Closely following this change, detrital zircon U-Pb age spectra and mudstone bulk-rock εNd values exhibit a sediment source change from the Central to the North Pamir estimated ca. 12 Ma. At the same time, the stable oxygen and carbon isotopic values of carbonate cements show negative and positive shifts, respectively. Combined with previous studies in both the Tajik and Tarim basins, these results suggest that the North Pamir experienced a middle–late Miocene phase of deformation and surface uplift. This supports models proposing middle–late Miocene Pamir tectonism, and climate models implying that coeval Pamir orogenesis deflected Westerly moisture and affected Asian environments.
    Note
    12 month embargo; first published: 26 October 2021
    ISSN
    0950-091X
    EISSN
    1365-2117
    DOI
    10.1111/bre.12629
    Version
    Final accepted manuscript
    Sponsors
    European Research Council
    ae974a485f413a2113503eed53cd6c53
    10.1111/bre.12629
    Scopus Count
    Collections
    UA Faculty Publications

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