GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National Park

Detalhes bibliográficos
Autor(a) principal: Guerra, Liliana de Castro Dias
Data de Publicação: 2014
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/8073
Resumo: Dissertação de mestrado, Geomática, Faculdade de Ciências e Tecnologia, Instituto Superior de Engenharia, Universidade do Algarve, 2014
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spelling GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National ParkGeomáticaPaleolíticoCatástrofes naturaisForaminíferos bentónicosGISDomínio/Área Científica::Engenharia e Tecnologia::Outras Engenharias e TecnologiasDissertação de mestrado, Geomática, Faculdade de Ciências e Tecnologia, Instituto Superior de Engenharia, Universidade do Algarve, 2014The present work aimed to characterize the actual and past environments at Doñana National Park (SW Spain) throughout the study of benthic foraminifera assemblages at two drill holes (cores C and D, from Ruiz et al., 2004) and twenty surface samples, as well as to recognize and confirm the occurrence of extreme energy events (storms/tsunamis) around 2165 yrs B.P. (215 yrs BC). The studied tsunamigenic beds have between 8 to 26 cm in Core C and 40 to 10 cm in Core D. Almost all the variables studied in the present work concur with previous works on tsunamigenic layers found worldwide. These variables include the foraminifera species found in the tsunamigenic layer, the composition of sand beds (suggesting strong waves and currents), the presence of reworked molluscs, marine foraminifera taxa, high values for planktonic/benthic ratio, and high Shannon H, Fisher Alpha and Species richness diversity indexes. In our case the diversity index that evidences the most the occurrence of a tsunami seems to be Fisher Alpha, which value is much higher than the other registered in both cores. Regarding foraminifera species, results with relative abundance >1% were considered in the present work, rather than abundances >5% as used by many authors. These results show the presence of marine foraminifera at the tsunamigenic layers, and their absence in the remaining records, which appeared extremely important for the recognition of the occurrence of these high energy events. From the twenty surface samples studied, only eight presented foraminifera content, which did not allow to compare the actual environments with the palaeoenvironments recorded in Cores C and D. Finally, ArcGIS software and Geosoft Target extension helped the micropalaeontological study, enabling to confirm the palaeoenvironmts description made for Doñana National Park by other authors, as well as the occurrence of palaeotsunamis in this area.Ruiz, FranciscoVeiga-Pires, C.SapientiaGuerra, Liliana de Castro Dias2016-04-26T15:56:47Z201420142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.1/8073TID:202228355enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:19:17Zoai:sapientia.ualg.pt:10400.1/8073Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:00:17.945895Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National Park
title GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National Park
spellingShingle GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National Park
Guerra, Liliana de Castro Dias
Geomática
Paleolítico
Catástrofes naturais
Foraminíferos bentónicos
GIS
Domínio/Área Científica::Engenharia e Tecnologia::Outras Engenharias e Tecnologias
title_short GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National Park
title_full GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National Park
title_fullStr GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National Park
title_full_unstemmed GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National Park
title_sort GIS and Palaentology integrated application for the recognition of tsunamigenic events in Doñana National Park
author Guerra, Liliana de Castro Dias
author_facet Guerra, Liliana de Castro Dias
author_role author
dc.contributor.none.fl_str_mv Ruiz, Francisco
Veiga-Pires, C.
Sapientia
dc.contributor.author.fl_str_mv Guerra, Liliana de Castro Dias
dc.subject.por.fl_str_mv Geomática
Paleolítico
Catástrofes naturais
Foraminíferos bentónicos
GIS
Domínio/Área Científica::Engenharia e Tecnologia::Outras Engenharias e Tecnologias
topic Geomática
Paleolítico
Catástrofes naturais
Foraminíferos bentónicos
GIS
Domínio/Área Científica::Engenharia e Tecnologia::Outras Engenharias e Tecnologias
description Dissertação de mestrado, Geomática, Faculdade de Ciências e Tecnologia, Instituto Superior de Engenharia, Universidade do Algarve, 2014
publishDate 2014
dc.date.none.fl_str_mv 2014
2014
2014-01-01T00:00:00Z
2016-04-26T15:56:47Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.1/8073
TID:202228355
url http://hdl.handle.net/10400.1/8073
identifier_str_mv TID:202228355
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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