Mantle wedge deformation by subducting and rotating slab and its possible implication

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Author(s)

Abstract

We have constructed a simple model of the deformation of the mantle wedge caused by the subducting and rotating slab based on corner flow model. By applying this model to the geological settings of the Somuncura plateau volcanic region, northern Patagonia, which is located far from the volcanic front, we constrain the mechanical aspect of the hypothesis that the volcanisms of the Somuncura region are triggered by the dehydrationinduced melting of the up-warped transition zone which may contain more water than other regions do. Assuming that the water concentrates in the transition zone under the Somuncura plateau, we find that the above scenario may be possible, if the speed of the subducting slab is less than -2 cm/yr or the dip angle changes significantly (-50 degrees within -8 Myr).

Journal

  • Earth, Planets and Space

    Earth, Planets and Space 58(8), 1087-1092, 2006-08-01

    The Seismological Society of Japan, Society of Geomagnetism and Earth, Planetary and Space Sciences, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences

References:  26

Codes

  • NII Article ID (NAID)
    10024493809
  • NII NACSIS-CAT ID (NCID)
    AA11211921
  • Text Lang
    ENG
  • Article Type
    SHO
  • ISSN
    13438832
  • NDL Article ID
    8071092
  • NDL Source Classification
    ZM41(科学技術--地球科学)
  • NDL Call No.
    Z54-J298
  • Data Source
    CJP  NDL  J-STAGE 
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