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Croûte continentale

7 à 10 Km. Croûte océanique. 30 à 70 KM. Croûte continentale. Lithosphère continentale 100 KM. Lithosphère océanique 100 km. Basaltes/Gabbro. Moho. Granite. Moho. Manteau lithosphérique Péridotite cassante. Manteau lithosphérique Péridotite cassante. Isotherme 1300 °C.

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Croûte continentale

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  1. 7 à 10Km Croûte océanique 30 à 70 KM Croûte continentale Lithosphère continentale 100 KM Lithosphère océanique 100 km Basaltes/Gabbro Moho Granite Moho Manteau lithosphérique Péridotite cassante Manteau lithosphérique Péridotite cassante Isotherme 1300 °C Isotherme 1300 °C Manteau Asthénosphérique Péridotite ductile Manteau Asthénosphérique Péridotite ductile Lithosphère et asthénosphère

  2. La notion de plaque lithosphérique Croûte continentale Croûte océanique Plaque lithosphérique Manteau lithosphérique rigide Asthénosphère ductile Moho Isotherme 1300 °C

  3. Subduction Foyers sismiques Fosse Croûte océanique Océan O Croûte océanique Lithosphère Manteau lithosphérique 10O Isotherme 1300°C Profondeur (Km) 20O Asthénosphère Manteau asthénosphérique Manteau Lithosphère 30O 40O Le modèle de la subduction

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