Late Mesozoic to Early Cenozoic components of vertical separation across the More-Trondelag Fault Complex, Norway

T. Redfield, A. Braathen, R.H. Gabrielsen, P.T. Osmundsen, T.H. Torsvik, P.A.M. Andriessen

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    Low temperature apatite fission track (AFT) data from two horizontal transects across the Møre-Trøndelag Fault Complex (MTFC) and along the coast of the Fosen peninsula have defined a complicated series of structural blocks whose exhumation to temperatures cooler than the uppermost apatite Partial Annealing Zone (PAZ) occurred during a broad Mesozoic to Cenozoic time span. The ∼100 million year cooling difference between the innermost and outermost blocks indicates they were subjected to very different exhumation pathways. Track length histograms and inverse model results also suggest that significant differences in thermal histories are present over very short horizontal distances. In conjunction with the offshore geological evidence, the AFT data and models strongly suggest that the innermost zones of the MTFC underwent between 2 and 4 km of structurally controlled net vertical rock column uplift/subsidence following latest Cretaceous time, and potentially much of the Tertiary as well. The up-to-the-east down-to-the-west relative offset at the Norwegian margin is interpreted in terms of a flexed, nearly broken lithospheric plate architectural model for late Mesozoic and Tertiary Scandes mountain building, whose driving force was likely dominanted by erosionally induced loading/unloading at the margin. © 2004 Elsevier B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)233-249
    JournalTectonophysics
    Volume395
    DOIs
    Publication statusPublished - 2005

    Fingerprint

    Norway
    apatites
    apatite
    exhumation
    fission
    margins
    unloading
    peninsulas
    subsidence
    annealing
    histogram
    coolers
    coasts
    mountains
    histograms
    transect
    uplift
    histories
    rocks
    Cretaceous

    Cite this

    Redfield, T. ; Braathen, A. ; Gabrielsen, R.H. ; Osmundsen, P.T. ; Torsvik, T.H. ; Andriessen, P.A.M. / Late Mesozoic to Early Cenozoic components of vertical separation across the More-Trondelag Fault Complex, Norway. In: Tectonophysics. 2005 ; Vol. 395. pp. 233-249.
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    title = "Late Mesozoic to Early Cenozoic components of vertical separation across the More-Trondelag Fault Complex, Norway",
    abstract = "Low temperature apatite fission track (AFT) data from two horizontal transects across the M{\o}re-Tr{\o}ndelag Fault Complex (MTFC) and along the coast of the Fosen peninsula have defined a complicated series of structural blocks whose exhumation to temperatures cooler than the uppermost apatite Partial Annealing Zone (PAZ) occurred during a broad Mesozoic to Cenozoic time span. The ∼100 million year cooling difference between the innermost and outermost blocks indicates they were subjected to very different exhumation pathways. Track length histograms and inverse model results also suggest that significant differences in thermal histories are present over very short horizontal distances. In conjunction with the offshore geological evidence, the AFT data and models strongly suggest that the innermost zones of the MTFC underwent between 2 and 4 km of structurally controlled net vertical rock column uplift/subsidence following latest Cretaceous time, and potentially much of the Tertiary as well. The up-to-the-east down-to-the-west relative offset at the Norwegian margin is interpreted in terms of a flexed, nearly broken lithospheric plate architectural model for late Mesozoic and Tertiary Scandes mountain building, whose driving force was likely dominanted by erosionally induced loading/unloading at the margin. {\circledC} 2004 Elsevier B.V. All rights reserved.",
    author = "T. Redfield and A. Braathen and R.H. Gabrielsen and P.T. Osmundsen and T.H. Torsvik and P.A.M. Andriessen",
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    Late Mesozoic to Early Cenozoic components of vertical separation across the More-Trondelag Fault Complex, Norway. / Redfield, T.; Braathen, A.; Gabrielsen, R.H.; Osmundsen, P.T.; Torsvik, T.H.; Andriessen, P.A.M.

    In: Tectonophysics, Vol. 395, 2005, p. 233-249.

    Research output: Contribution to JournalArticleAcademicpeer-review

    TY - JOUR

    T1 - Late Mesozoic to Early Cenozoic components of vertical separation across the More-Trondelag Fault Complex, Norway

    AU - Redfield, T.

    AU - Braathen, A.

    AU - Gabrielsen, R.H.

    AU - Osmundsen, P.T.

    AU - Torsvik, T.H.

    AU - Andriessen, P.A.M.

    PY - 2005

    Y1 - 2005

    N2 - Low temperature apatite fission track (AFT) data from two horizontal transects across the Møre-Trøndelag Fault Complex (MTFC) and along the coast of the Fosen peninsula have defined a complicated series of structural blocks whose exhumation to temperatures cooler than the uppermost apatite Partial Annealing Zone (PAZ) occurred during a broad Mesozoic to Cenozoic time span. The ∼100 million year cooling difference between the innermost and outermost blocks indicates they were subjected to very different exhumation pathways. Track length histograms and inverse model results also suggest that significant differences in thermal histories are present over very short horizontal distances. In conjunction with the offshore geological evidence, the AFT data and models strongly suggest that the innermost zones of the MTFC underwent between 2 and 4 km of structurally controlled net vertical rock column uplift/subsidence following latest Cretaceous time, and potentially much of the Tertiary as well. The up-to-the-east down-to-the-west relative offset at the Norwegian margin is interpreted in terms of a flexed, nearly broken lithospheric plate architectural model for late Mesozoic and Tertiary Scandes mountain building, whose driving force was likely dominanted by erosionally induced loading/unloading at the margin. © 2004 Elsevier B.V. All rights reserved.

    AB - Low temperature apatite fission track (AFT) data from two horizontal transects across the Møre-Trøndelag Fault Complex (MTFC) and along the coast of the Fosen peninsula have defined a complicated series of structural blocks whose exhumation to temperatures cooler than the uppermost apatite Partial Annealing Zone (PAZ) occurred during a broad Mesozoic to Cenozoic time span. The ∼100 million year cooling difference between the innermost and outermost blocks indicates they were subjected to very different exhumation pathways. Track length histograms and inverse model results also suggest that significant differences in thermal histories are present over very short horizontal distances. In conjunction with the offshore geological evidence, the AFT data and models strongly suggest that the innermost zones of the MTFC underwent between 2 and 4 km of structurally controlled net vertical rock column uplift/subsidence following latest Cretaceous time, and potentially much of the Tertiary as well. The up-to-the-east down-to-the-west relative offset at the Norwegian margin is interpreted in terms of a flexed, nearly broken lithospheric plate architectural model for late Mesozoic and Tertiary Scandes mountain building, whose driving force was likely dominanted by erosionally induced loading/unloading at the margin. © 2004 Elsevier B.V. All rights reserved.

    U2 - 10.1016/j.tecto.2004.09.012

    DO - 10.1016/j.tecto.2004.09.012

    M3 - Article

    VL - 395

    SP - 233

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