Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    A paleolatitude reconstruction of the South Armenian Block (Lesser Caucasus) for the Late Cretaceous: Constraints on the Tethyan realm

    Access Status
    Fulltext not available
    Authors
    Meijers, M.
    Smith, B.
    Kirscher, Uwe
    Mensink, M.
    Sosson, M.
    Rolland, Y.
    Grigoryan, A.
    Sahakyan, L.
    Avagyan, A.
    Langereis, C.
    Müller, C.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Meijers, M. and Smith, B. and Kirscher, U. and Mensink, M. and Sosson, M. and Rolland, Y. and Grigoryan, A. et al. 2015. A paleolatitude reconstruction of the South Armenian Block (Lesser Caucasus) for the Late Cretaceous: Constraints on the Tethyan realm. Tectonophysics. 644-645: pp. 197-219.
    Source Title
    Tectonophysics
    DOI
    10.1016/j.tecto.2015.01.012
    ISSN
    0040-1951
    School
    Department of Applied Geology
    URI
    http://hdl.handle.net/20.500.11937/7213
    Collection
    • Curtin Research Publications
    Abstract

    The continental South Armenian Block – part of the Anatolide–Tauride South Armenian microplate – of Gondwana origin rifted from the African margin after the Triassic and collided with the Eurasian margin after the Late Cretaceous. During the Late Cretaceous, two northward dipping subduction zones were simultaneously active in the northern Neo-Tethys between the South Armenian Block in the south and the Eurasian margin in the north: oceanic subduction took place below the continental Eurasian margin and intra-oceanic subduction resulted in ophiolite obduction onto the South Armenian Block in the Late Cretaceous. The paleolatitude position of the South Armenian Block before its collision with Eurasia within paleogeographic reconstructions is poorly determined and limited to one study. This earlier study places the South Armenian Block at the African margin in the Early Jurassic. To reconstruct the paleolatitude history of the South Armenian Block, we sampled Upper Devonian–Permian and Cretaceous sedimentary rocks in Armenia. The sampled Paleozoic rocks have likely been remagnetized. Results from two out of three sites sampled in Upper Cretaceous strata pass fold tests and probably all three carry a primary paleomagnetic signal. The sampled sedimentary rocks were potentially affected by inclination shallowing. Therefore, two sites that consist of a large number of samples (> 100) were corrected for inclination shallowing using the elongation/inclination method.These are the first paleomagnetic data that quantify the South Armenian Block's position in the Tethys ocean between post-Triassic rifting from the African margin and post-Cretaceous collision with Eurasia. A locality sampled in Lower Campanian Eurasian margin sedimentary rocks and corrected for inclination shallowing, confirms that the corresponding paleolatitude falls on the Eurasian paleolatitude curve. The north–south distance between the South Armenian Block and the Eurasian margin just after Coniacian–Santonian ophiolite obduction was at most 1000 km.

    Related items

    Showing items related by title, author, creator and subject.

    • Mesozoic reactivation of the Beishan, southern Central Asian Orogenic Belt: Insights from low-temperature thermochronology
      Gillespie, J.; Glorie, S.; Xiao, W.; Zhang, Z.; Collins, A.; Evans, Noreen; McInnes, Brent; Grave, J. (2015)
      The Beishan Orogenic Collage (BOC) is located in the southeast of the Central Asian Orogenic Belt (CAOB) and formed during final consumption of the Palaeoasian Ocean in the late Palaeozoic. This study applies low temperature ...
    • Tectonic imprints in Permian paleomagnetic data of Morocco
      Weissbrodt, V.; Bachtadse, V.; Kirscher, Uwe ; Saber, H.; Liu, Yebo; Ronchi, Ausonia (2024)
      Although Pangea as Earth's youngest supercontinent has continuously served as a pivotal reference mark in paleogeographic reconstructions, its assembly is still a matter of debate. This is mainly due to poor paleomagnetic ...
    • Meso-Cenozoic tectonic evolution of the Talas-Fergana region of the Kyrgyz Tien Shan revealed by low-temperature basement and detrital thermochronology
      Nachtergaele, S.; De Pelsmaeker, E.; Glorie, S.; Zhimulev, F.; Jolivet, M.; Danišík, Martin; Buslov, M.; De Grave, J. (2017)
      This study provides new low-temperature thermochronometric data, mainly apatite fission track data on the basement rocks in and adjacent to the Talas-Fergana Fault, in the Kyrgyz Tien Shan in the first place. In the second ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.