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Title: Large-scale structure of an Intraplate Fold-and-Thrust Belt: The Iberian Chain.
Author: Guimerà i Rosso, Joan J.
Keywords: Serralada Ibèrica
Geologia estructural
Iberian Mountains
Structural geology
Issue Date: Jul-2022
Publisher: Sociedad Geológica de España
Abstract: The Iberian Chain is an intraplate fold-and-thrust belt developed during the late Eocene to Miocene because of the contractional inversion of the Iberian Mesozoic Basins. Its dominant trend is NW-SE, but E-W-, NE-SW- and N-S-trending structures are also present inside it. Its NE and SW boundaries are major thrusts: The North Iberian Thrust and the Serranía de Cuenca Thrust. The thrust-sheet on top of these thrusts, display two big anticlinoriums, separated by the big Almazán Synclinorium. They are interpreted as major fault-bend folds developed over the ramp and flat geometry of the two major thrusts. The level of erosion is low in most of its extent, so there is a small difference between the tectonic and the topographic reliefs. Hence, a low dip is needed for the major thrusts. A model section is presented which fits a cross-section thru the chain. A total displacement of 60km of the thrust-sheet is needed to fit the cross-section geometry, and the sole thrust is located at a depth of 10km.
Note: Reproducció del document publicat a:
It is part of: Geo-Temas, 2022, vol. 18, p. 76-78
ISSN: 1576-5172
Appears in Collections:Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)

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