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Sismicidad, vulcanismo y erosión - Formación Amé Central

Estudios Sociales. 7º Nivel, I Trimestre, Tema 3

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Transcript of Sismicidad, vulcanismo y erosión - Formación Amé Central

Sismicidad
Vulcanismo
Erosión
Origen y evolución geológica del territorio costarricense
Es la acción de los volcanes
Magma llega a la corteza (lava)
Intrusión ígnea (no salida de magma)
Movimientos de la corteza terrestre denominados sismos

Escala Richter (magnitud)
Escala Mercalli (daños)
Hay dos tipos de sismos
Sismos tectónicos
Sismos volcániscos
Choque de placas
Afecta grandes extensiones
Graves daños
Relacionados con las erupciones
Areas reducidas
Contribuye a la formación de valles y llanuras
Erosión Pluvial
Lluvia
Erosión fluvial
Ríos
Alfred Wegener

Pangea
Panthalassa

Placas tectonicas
Full transcript