edoc

Large-scale deformation in a locked collisional boundary : interplay between subsidence and uplift, intraplate stress, and inherited lithospheric structure in the late stage of the SE Carpathians evolution

Matenco, Liviu and Bertotti, Giovanni and Leever, Karen and Cloetingh, Sierd and Schmid, Stefan M. and Tarapoanca, M. and Dinu, Cornel. (2007) Large-scale deformation in a locked collisional boundary : interplay between subsidence and uplift, intraplate stress, and inherited lithospheric structure in the late stage of the SE Carpathians evolution. Tectonics, 26 (4). pp. 1-29.

[img]
Preview
PDF - Published Version
51Mb

Official URL: http://edoc.unibas.ch/dok/A5250451

Downloads: Statistics Overview

Abstract

The interplay between slab dynamics and intraplate stresses in postcollisional times creates large near-surface deformation, particularly in highly bent orogens with significant lateral variations in mechanical properties. This deformation is expressed through abnormal foredeep geometries and contrasting patterns of vertical movements. Intraplate folding is often the controlling mechanism, particularly when the orogenic belt is locked. The study of these tectonic processes in the SE Carpathians indicates a generalized subsidence period during latest MiocenePliocene times driven by the slab-pull and an intraplate folding due to an overall Quaternary inversion. The latter accommodates 5 km ESE-ward movement of this area with respect to the neighboring units, which creates complicated threedimensional deformation patterns potentially driven at a larger scale by the interaction between the Adriatic indentor and the entire Carpathians system. The lithospheric anisotropy inherited from the subduction times concentrates strain and induces large-scale deformation far away from the active plate margins. This anisotropy is dynamic because of deep mantle processes related to the subducted slab during postcollisional times, such as thermal reequilibration or increase in slab dip.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geologie-Paläontologie > Tektonik (nn)
UniBasel Contributors:Schmid, Stefan M.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Geophysical Union
ISSN:0278-7407
e-ISSN:1944-9194
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:06 Nov 2017 14:12
Deposited On:22 Mar 2012 14:16

Repository Staff Only: item control page