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Dinámica de las placas internas de la Tierra

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by Javier Espinosa on 15 October 2013

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Transcript of Dinámica de las placas internas de la Tierra

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli
CAPAS INTERNAS DE LA TIERRA
¿Cómo se formó la Tierra?
¿Como se separaron los continentes?
Y ¿por dentro?
NUCLEO

Formado por metales como el hierro y el níquel
Temperatura entre 4,000 y 6,000 grados centígrados

NUCLEO INTERNO
solido
NUCLEO EXTERNO
líquido



MANTO
Formado principalmente por hierro, magnesio y silicio
Temperaturas de 2,000 a 4,000grados centígrados

MANTO INFERIOR
solido

MANTO SUPERIOR
espeso, formado por roca fundida
CORTEZA

Se divide en continental y oceánica ambas de roca sólida

CONTINENTAL
Tiene 33 km de grueso

OCEANICA
8 km de grueso

MANTO SUPERIOR
Se prducen movimientos ascendentes del material rocoso fundido lo que explica el movimiento de las placas tectónicas.
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