Utilize este identificador para referenciar este registo: http://hdl.handle.net/10362/4503
Título: Aspectos gerais da tectónica alpina no Algarve
Autor: Kullberg, J. C.
Pais, João
Manuppella, G.
Palavras-chave: Tectonic
Algarve
Portugal
Cenozoic
Data: 1992
Resumo: The study of the tectonic strutures affecting the mesozoic and cenozoic deposits of Algarve's basin allows us to recognize the following phases of the Alpine orogeny: Jurassic (Upper Triassic at least)-Lower Cretaceous N-S distension; N-S compression during the setting-up of the Monchique syenite dome at the uppermost Cretaceous; Paleogene compression (?) (only locally? - at the Albufeira salt dome); Lower Miocene N-S distension; Upper Burdigalian to Lower Langhian N-S and E-W distension; N-S or NNW-SSE compression after the Middle Miocene; E-W compression after the Upper Tortonian; N-S compression during the Quaternary. NE-SW fractures affecting the Paleozoic basement are related with the first distension phases. The mesozoic N-S distension are the main cause of the two E-W flexures so far recognized. A tectonic inversion event did occur after the setting up of the Monchique syenite. If, the Lower Cretaceous Lower Miocene Albufeira's unconformity, is a local effect of halokinesis then, the true tectonic inversion of the Algarve basin, did occur in the Middle Miocene. These events correlate well with those knewn at Southern Spain and Morocco.
URI: http://hdl.handle.net/10362/4503
Aparece nas colecções:FCT: DCT - Ciências da Terra

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