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Placa tectónica

Placas tectónicas principais e menores da Terra.
Tectonics plates (preserved surfaces)

Unha placa tectónica é unha porción de litosfera limitada por zonas de converxencia e/ou zonas de subdución. Actualmente, a Terra ten sete placas tectónicas principais e moitas máis sub-placas de menores dimensións. Segundo a teoría da Tectónica de placas, as placas tectónicas son criadas nas zonas de diverxencia, ou zonas de rift, e son consumidas en zonas de subdución. É nas zonas de fronteira entre placas que se rexistran a gran maioría dos terremotos e erupcións volcánicas.

Lista de placas tectónicas

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Placas principais

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Placas menores

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  • Placa Adriática
  • Placa da Anatolia
  • Placa Arábica
  • Placa Caribeana
  • Placa da Carolina
  • Placa de Cocos
  • Placa Leste-Americana
  • Placa de Gorda
  • Placa Helénica
  • Placa Indiana
  • Placa australiana
  • Placa Iraniana
  • Placa Juan de Fuca
  • Placa de Nazca
  • Placa de Filipinas
  • Placa da Somalia
  • Placa de Scotia
  • Placa de Sunda
  • Placa de Tonga

Véxase tamén

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Outros artigos

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Placa tectónica
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