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El Jurásico Medio de la Cuenca Catalana: unidades litoestratigráficas y elementos paleogeográficos.

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Fernández López, Sixto Rafael and Aurell, Marcos and García Joral, Fernando and Gómez Fernández, Juan José and Henriques, María Helena Paiva and Martínez Gutiérrez, Gemma and Meléndez Hevia, Guillermo and Súarez Vega, Luis Carlos (1996) El Jurásico Medio de la Cuenca Catalana: unidades litoestratigráficas y elementos paleogeográficos. Revista española de paleontología (Extrao). pp. 122-139. ISSN 0213-6937

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Abstract

The palaeogeography and facies distribution of the Catalan Basin during the Middle Jurassic are reconstructed, on the basis of outcrops
and logs data. A new lithostratigraphic classification valid for the Catalan Basin is defined and its equivalence with the correlative
units in the lberian Basin and Majorca is discussed. A system of arched, listric-shaped faults dipping towards the Mediterranean
sea was a major factor determining the differentiation of the subsident Platform of Tortosa. From a palaeobiogeographical point
of view, the ammonite and brachiopod recorded associations from the Platform of Tortosa are taxonornically similar to the associations
of the epicontinental European basins. The Catalan Basin and Majorca were two geographically separate areas, maintaining
separate biogeographical and taphonomic dispersal ways in the Middle Jurassic. Yet in the Catalan Basin expanded, outer shelf sections
were developed during the Garantiana Biochron (Upper Bajocian). During this episode the basin reached the maximum bathymetric
values and acted as a biogeographical dispersal area for some taxonomic groups characteristic of the West-Tethys.


Item Type:Article
Uncontrolled Keywords:Lithostratigraphy, Biostratigraphy, Palaeogeography, Palaeobiogeography, Ammonites, Brachiopods, Taphonomic Condensation, Stratigraphic condensation, Iberian Basin, Majorca, Basin analysis
Subjects:Sciences > Geology > Paleontology
ID Code:21583
Deposited On:28 May 2013 11:12
Last Modified:11 Dec 2018 08:42

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