Los depósitos aluviales sintectónicos de la Pobla de Segur: alogrupos y su significado tectonoestratigráfico

Acta Geologica Hispanica

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Title Los depósitos aluviales sintectónicos de la Pobla de Segur: alogrupos y su significado tectonoestratigráfico
 
Creator MELLERE, DONATELLA
MARZO, MARIANO
 
Description Detailed structural and stratigraphic studies in the late Eocene and Oligocene alluvial fan, fan-delta and lacustrine deposits of La Pobla de Segur Conglomerates (Collegats Formation) in the south-central part of the Pyrenees have indicated a close link between tectonics and sedimentation. The conglomerates unconformably overlie apreviously deformed Mesozoic substratum and are organized : into a series of stacked wedge-shaped bodies reaching an accumulative thickness of about 3500 m. The presence of basinwide mappable i unconformity surfaces allowed the definition of five main allogroups (Pessonada, Ermita, Pallaresa, Senterada and Antist) internallyI subdivided into alloformations or sequences. Structural relationships between the conglomerates and its Mesozoic substratum allowed to establish the relative chronology of the late stages of the alpine deformation in the south Pyrenean Chain and the tectonic origin of the bounding surfaces of the allogroups
 
Publisher Universitat de Barcelona
 
Contributor
 
Date 2012-09-27
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Identifier https://revistes.ub.edu/index.php/ActaGeologica/article/view/15977
 
Source Acta Geologica Hispanica; Vol.:27 Núm.:1-2; 145-159
Acta Geologica Hispanica; Vol.:27 Núm.:1-2; 145-159
Acta Geologica Hispanica; Vol.:27 Núm.:1-2; 145-159
2173-6537
0567-7505
 
Language en
 

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