Along strike preorogenic thickness variation and onlapping geometries control on thrust wedge evolution: insight from sandbox analogue modelling
Abstract: Thickness variation of sedimentary sequences is largely viewed as a controlling factor on the evolution of orogenic wedges; among the different structural and stratigraphic features generating thickness variation, we focused our analysis on the onlapping geometries, using laboratory sandbo...
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Language: | English |
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Oviedo: Facultad de Ciencias, Universidad de Oviedo.
2009
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Online Access: | http://hdl.handle.net/11573/48980 https://doi.org/10.17811/tdg.29.2009 |
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ftunivromairis:oai:iris.uniroma1.it:11573/48980 2024-04-14T08:12:29+00:00 Along strike preorogenic thickness variation and onlapping geometries control on thrust wedge evolution: insight from sandbox analogue modelling BIGI, Sabina GALUPPO C PERFETTI L COLELLA S CIVALLERI M. Bigi, Sabina Galuppo, C Perfetti, L Colella, S Civalleri, M. 2009 STAMPA http://hdl.handle.net/11573/48980 https://doi.org/10.17811/tdg.29.2009 eng eng Oviedo: Facultad de Ciencias, Universidad de Oviedo. volume:29 firstpage:133 lastpage:142 numberofpages:10 journal:TRABAJOS DE GEOLOGÍA http://hdl.handle.net/11573/48980 doi:10.17811/tdg.29.2009 info:eu-repo/semantics/article 2009 ftunivromairis https://doi.org/10.17811/tdg.29.2009 2024-03-21T19:13:10Z Abstract: Thickness variation of sedimentary sequences is largely viewed as a controlling factor on the evolution of orogenic wedges; among the different structural and stratigraphic features generating thickness variation, we focused our analysis on the onlapping geometries, using laboratory sandbox experiments. The aim was trying to describe how a common sedimentary configuration could influence thrusts geometry and mode of accretion. Model results showed that onlapping geometries in pretectonic sediments cause a great complexity, dominated by curvilinear thrusts, back thrust and out-ofsequence thrusts. They also influence mode of accretion, generating diachronous thrusting along strike, reactivation and under-thrusting alternating to simple piggy-back sequence. Our modeling results are compared with natural examples from the Apennines, the southern Pyrenees, the Pindos (Greece) and the West Spitsbergen (Greenland) fold and thrust belts, among many others, where strain localization and diachronic thrusting affecting thrust propagation in correspondence to complex geometries both in the pre-orogenic stratigraphy and in the upper crust. Article in Journal/Newspaper Greenland Spitsbergen Sapienza Università di Roma: CINECA IRIS Greenland |
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Open Polar |
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Sapienza Università di Roma: CINECA IRIS |
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ftunivromairis |
language |
English |
description |
Abstract: Thickness variation of sedimentary sequences is largely viewed as a controlling factor on the evolution of orogenic wedges; among the different structural and stratigraphic features generating thickness variation, we focused our analysis on the onlapping geometries, using laboratory sandbox experiments. The aim was trying to describe how a common sedimentary configuration could influence thrusts geometry and mode of accretion. Model results showed that onlapping geometries in pretectonic sediments cause a great complexity, dominated by curvilinear thrusts, back thrust and out-ofsequence thrusts. They also influence mode of accretion, generating diachronous thrusting along strike, reactivation and under-thrusting alternating to simple piggy-back sequence. Our modeling results are compared with natural examples from the Apennines, the southern Pyrenees, the Pindos (Greece) and the West Spitsbergen (Greenland) fold and thrust belts, among many others, where strain localization and diachronic thrusting affecting thrust propagation in correspondence to complex geometries both in the pre-orogenic stratigraphy and in the upper crust. |
author2 |
Bigi, Sabina Galuppo, C Perfetti, L Colella, S Civalleri, M. |
format |
Article in Journal/Newspaper |
author |
BIGI, Sabina GALUPPO C PERFETTI L COLELLA S CIVALLERI M. |
spellingShingle |
BIGI, Sabina GALUPPO C PERFETTI L COLELLA S CIVALLERI M. Along strike preorogenic thickness variation and onlapping geometries control on thrust wedge evolution: insight from sandbox analogue modelling |
author_facet |
BIGI, Sabina GALUPPO C PERFETTI L COLELLA S CIVALLERI M. |
author_sort |
BIGI, Sabina |
title |
Along strike preorogenic thickness variation and onlapping geometries control on thrust wedge evolution: insight from sandbox analogue modelling |
title_short |
Along strike preorogenic thickness variation and onlapping geometries control on thrust wedge evolution: insight from sandbox analogue modelling |
title_full |
Along strike preorogenic thickness variation and onlapping geometries control on thrust wedge evolution: insight from sandbox analogue modelling |
title_fullStr |
Along strike preorogenic thickness variation and onlapping geometries control on thrust wedge evolution: insight from sandbox analogue modelling |
title_full_unstemmed |
Along strike preorogenic thickness variation and onlapping geometries control on thrust wedge evolution: insight from sandbox analogue modelling |
title_sort |
along strike preorogenic thickness variation and onlapping geometries control on thrust wedge evolution: insight from sandbox analogue modelling |
publisher |
Oviedo: Facultad de Ciencias, Universidad de Oviedo. |
publishDate |
2009 |
url |
http://hdl.handle.net/11573/48980 https://doi.org/10.17811/tdg.29.2009 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Spitsbergen |
genre_facet |
Greenland Spitsbergen |
op_relation |
volume:29 firstpage:133 lastpage:142 numberofpages:10 journal:TRABAJOS DE GEOLOGÍA http://hdl.handle.net/11573/48980 doi:10.17811/tdg.29.2009 |
op_doi |
https://doi.org/10.17811/tdg.29.2009 |
_version_ |
1796310302008016896 |