cn tectónica de placas
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Tectónica de PlacasTRANSCRIPT
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https://sites.google.com/site/geologiaebiologiacorreia1966/
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O desenvolvimento da Ciência e da Tecnologia permitiu estudar os
fundos oceânicos e descobrir que a litosfera está fragmentada em
placas litosféricas que se movem e interagem entre si. Estes
movimentos são explicados pela teoria da tectónica de placas.
Submersível
tripuladoROV
Mapeamento
por sonarPerfuração
Observatório
permanente
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A Terra vista sem água ………..
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Morfologia do fundo oceânico do Atlântico Norte
Planície
abissal
Talude
continental
Dorsal
oceânica
Plataforma
continental
Continente
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Planície abissal – zona profunda
declive suave.
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Talude continental – porção da crusta
continental de declive acentuado, que
se segue à plataforma continental e
que antecede a planície abissal.
Plataforma continental – superfície de
crusta continental, de declive suave.
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Crista médio-oceânicas – limites
construtivos, onde se forma crosta
oceânica (Basalto)
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Fossa oceânica – região profunda,
que corresponde a um limite
destrutivo, havendo destruição de
crosta terrestre.
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O conhecimento do relevo dos fundos oceânicos foi fundamental
para compreender a mobilidade dos continentes e a formação
das cadeias montanhosas.
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As rochas mais recentes estão localizadas junto ao rifte.
A idade das rochas aumenta à medida que aumenta a distância ao rifte.
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Aerial view of a
strike-slip fault
(right-lateral) in
Nevada | #Geology
#GeologyPage
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