Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia

Memoria de tesis doctoral presentada por Miquel Camafort Blanco para obtener el título de Doctor en Ciencias de la Tierra por la Universitat de Barcelona (UB), realizada bajo la dirección del Dr. César Rodríguez Ranero y de la Dra. Eulàlia Gràcia i Mont del Institut de Ciències del Mar (ICM-CSIC).--...

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Detalles Bibliográficos
Autor: Camafort Blanco, Miquel
Tipo de recurso: tesis doctoral
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/211648
Acceso en línea:http://hdl.handle.net/10261/211648
Access Level:acceso abierto
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spelling Active tectonics in Northern Africa: The Nubia-Eurasia boundary in TunisiaTectónica activa en el norte de África: el límite entre Nubia y Europa en TúnezCamafort Blanco, MiquelMemoria de tesis doctoral presentada por Miquel Camafort Blanco para obtener el título de Doctor en Ciencias de la Tierra por la Universitat de Barcelona (UB), realizada bajo la dirección del Dr. César Rodríguez Ranero y de la Dra. Eulàlia Gràcia i Mont del Institut de Ciències del Mar (ICM-CSIC).-- 266 pages, figuresThis PhD thesis presents a geological and geophysical study that characterizes the Quaternary stratigraphy, geomorphology, recent tectonics, and discusses their implications to understand the geodynamic evolution of North Tunisia, including the emerged land and continental margin. The study area spans much of the region containing the boundary between the African and Eurasian tectonic plates in this sector. The onshore main structural pattern strikes in a NE-SW trend that extends offshore, into the North Tunisian continental margin plateau that is part of the same recent deformation system. I have carried out specific analyses of these two onshore and offshore regions where present-day tectonics has been previously poorly studied. Although some limited activetectonic studies had been carried out onshore, the offshore area was scarcely studied to date, and never explored in the detail presented in this work, let alone studied in an onshore-offshore integrative study. To carry out the joint study of the two regions we have had to take different methodological approaches. Onshore Northern Tunisia we applied a morphometric relief analysis of digital elevation models based in drainage network metrics to characterize active tectonics and its influence into the drainage evolution of the area. This analysis was ground-truthed with a field campaign in March 2015 to examine the several morphometric anomalies obtained with the relief analysis carried out before. Our analysis indicates that recent river captures have been the main factor driving the fluvial network reorganization in Northern Tunisia. Morphometric indices evidence fluvial network reorganization that indicates that the catchment area of the Medjerda River has increased through time by capturing adjacent axial valleys to the east of its previous drainage divide. These captures are probably driven by the gradual uplift of adjacent axial valleys by reverse/oblique slip faults like El Alia-Teboursouk and Dkhila faults or associated folding. Our fieldwork discovered that these faults cut Pleistocene sediments and possible associated coseismic structures were identified, further supporting recent fault activity with estimated maximum magnitudes (Mw) of 6.7 and 6.5 respectively for each fault. [...]The author of this thesis has been supported by the project Geomargen-2 funded by Repsol and EU project EMODnet-HRSM. Additional funding has been obtained on the framework of SHAKE (CGL2011-30005-C02-02) and INSIGHT (CTM2015-70155-R) projects. This work was carried out within the Grup de Recerca Consolidat de la Generalitat de Catalunya Barcelona Centre for Subsurface Imaging (B-CSI) (2017SGR1662)Universidad de BarcelonaCSIC - Instituto de Ciencias del Mar (ICM)Ranero, César R.Gràcia, EulàliaEuropean CommissionMinisterio de Economía y Competitividad (España)Generalitat de CatalunyaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020192020info:eu-repo/semantics/doctoralThesishttp://purl.org/coar/resource_type/c_db06http://hdl.handle.net/10261/211648reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-70155-RSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2116482026-05-22T06:33:51Z
dc.title.none.fl_str_mv Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia
Tectónica activa en el norte de África: el límite entre Nubia y Europa en Túnez
title Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia
spellingShingle Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia
Camafort Blanco, Miquel
title_short Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia
title_full Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia
title_fullStr Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia
title_full_unstemmed Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia
title_sort Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia
dc.creator.none.fl_str_mv Camafort Blanco, Miquel
author Camafort Blanco, Miquel
author_facet Camafort Blanco, Miquel
author_role author
dc.contributor.none.fl_str_mv Ranero, César R.
Gràcia, Eulàlia
European Commission
Ministerio de Economía y Competitividad (España)
Generalitat de Catalunya
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Memoria de tesis doctoral presentada por Miquel Camafort Blanco para obtener el título de Doctor en Ciencias de la Tierra por la Universitat de Barcelona (UB), realizada bajo la dirección del Dr. César Rodríguez Ranero y de la Dra. Eulàlia Gràcia i Mont del Institut de Ciències del Mar (ICM-CSIC).-- 266 pages, figures
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
http://purl.org/coar/resource_type/c_db06
format doctoralThesis
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/211648
url http://hdl.handle.net/10261/211648
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-70155-R
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidad de Barcelona
CSIC - Instituto de Ciencias del Mar (ICM)
publisher.none.fl_str_mv Universidad de Barcelona
CSIC - Instituto de Ciencias del Mar (ICM)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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