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About: Slab window

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In geology, a slab window is a gap that forms in a subducted oceanic plate when a mid-ocean ridge meets with a subduction zone and plate divergence at the ridge and convergence at the subduction zone continue, causing the ridge to be subducted. Formation of a slab window produces an area where the crust of the over-riding plate is lacking a rigid lithospheric mantle component and thus is exposed to hot asthenospheric mantle (for a diagram of this, see the link below). This produces anomalous thermal, chemical and physical effects in the mantle that can dramatically change the over-riding plate by interrupting the established tectonic and magmatic regimes. In general, the data used to identify possible slab windows comes from seismic tomography and heat flow studies.

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  • En géologie, une fenêtre asthénosphérique est une brèche formée sur une plaque océanique où une dorsale glisse en zone de subduction. La formation d'une fenêtre asthénosphérique produit une zone où la croûte de la plaque supérieure perd le soutien du manteau lithosphérique et est exposée au manteau asthénosphérique, créant des effets thermiques, chimiques et physiques dans le manteau pouvant changer drastiquement certains phénomènes tectoniques et magmatiques de la plaque supérieure. En général, les données utilisées pour identifier les fenêtres asthénosphériques proviennent de la tomographie sismique ainsi que des recherches sur le transfert thermique. (fr)
  • In geology, a slab window is a gap that forms in a subducted oceanic plate when a mid-ocean ridge meets with a subduction zone and plate divergence at the ridge and convergence at the subduction zone continue, causing the ridge to be subducted. Formation of a slab window produces an area where the crust of the over-riding plate is lacking a rigid lithospheric mantle component and thus is exposed to hot asthenospheric mantle (for a diagram of this, see the link below). This produces anomalous thermal, chemical and physical effects in the mantle that can dramatically change the over-riding plate by interrupting the established tectonic and magmatic regimes. In general, the data used to identify possible slab windows comes from seismic tomography and heat flow studies. (en)
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  • In geology, a slab window is a gap that forms in a subducted oceanic plate when a mid-ocean ridge meets with a subduction zone and plate divergence at the ridge and convergence at the subduction zone continue, causing the ridge to be subducted. Formation of a slab window produces an area where the crust of the over-riding plate is lacking a rigid lithospheric mantle component and thus is exposed to hot asthenospheric mantle (for a diagram of this, see the link below). This produces anomalous thermal, chemical and physical effects in the mantle that can dramatically change the over-riding plate by interrupting the established tectonic and magmatic regimes. In general, the data used to identify possible slab windows comes from seismic tomography and heat flow studies. (en)
  • En géologie, une fenêtre asthénosphérique est une brèche formée sur une plaque océanique où une dorsale glisse en zone de subduction. La formation d'une fenêtre asthénosphérique produit une zone où la croûte de la plaque supérieure perd le soutien du manteau lithosphérique et est exposée au manteau asthénosphérique, créant des effets thermiques, chimiques et physiques dans le manteau pouvant changer drastiquement certains phénomènes tectoniques et magmatiques de la plaque supérieure. (fr)
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  • Fenêtre asthénosphérique (fr)
  • Slab window (en)
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