plataforma estable cordillera alpina cratones precambricos rodeados por cordilleras fanerozoicas...
TRANSCRIPT
![Page 1: Plataforma estable cordillera Alpina CRATONES PRECAMBRICOS RODEADOS POR CORDILLERAS FANEROZOICAS orogenia Herc í nica o Varisca (Devonico-Carbonifero 380-280Ma)](https://reader033.vdocuments.site/reader033/viewer/2022061223/54c68fac49795990548b4938/html5/thumbnails/1.jpg)
plataforma estable
cordillera Alpina
CRATONES PRECAMBRICOS RODEADOS POR CORDILLERAS FANEROZOICAS
orogenia Hercínica o Varisca (Devonico-Carbonifero ≈ 380-280Ma)
orogenia Alpina (Terciario = 65 - 0 Ma)
orogenia Caledoniana (Silurico ≈ 450-400Ma)
escudo PreCambricoCratón PreCambrico
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QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
capa polar en el Permico(tilitas)
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velocidades de placas en cm/año
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transformante
convergente (destructivo)
divergente (constructivo)
Los 3 tipos de limites entre placas tectónicas (litosfera)
zona de bajas velocidadesmesosfera
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Tema 2: Tectónica de placas.
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Islandia (dorsal Atlantica)
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Nile Delta
Gulf ofSuez
Gulf of‘Aqaba
Red Sea
ejemplo actual de una zona dedesgarre ("rifting") continental
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los margenes Atlanticos son pasivos
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Margen activo Margen pasivo
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Arcos de Isla (son margenes activos cuenca retro-arco)
fosas (hasta ≈11km de profundidad)
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Profundidad terremotos0-33km33-70km70-300km300-700km
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ZONAS DE WADATI-BENIOFF
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Magnitude 7.6 SOUTHERN SUMATRA, INDONESIAWednesday, September 30, 2009 at 10:16:09 UTC
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Falla de San Andres(limite transformante)
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