Gruta da figueira brava (Arrabida): Geological setting

Detalhes bibliográficos
Autor(a) principal: Pais, João
Data de Publicação: 2000
Outros Autores: Legoinha, P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/1874
Resumo: Separata do Tomo XXXVIII das Memories da Academia das Ciencias de Lisboa (Classe de Ciencias)
id RCAP_7afc5e37d6de4b1f465b9c70c1c3c90a
oai_identifier_str oai:run.unl.pt:10362/1874
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Gruta da figueira brava (Arrabida): Geological settingMiocenePleistocenePortinho da ArrabidaFigueira Brava cavePortugalSeparata do Tomo XXXVIII das Memories da Academia das Ciencias de Lisboa (Classe de Ciencias)The Arrabida Mountain Range is the best example in Portugal of alpine movements. During Miocene times the Arrabida chain acquired the present structural set up: overthrusting accidents striking ENE-WSW and N-S or NNE-SSW sinistral lateral ramps. The main tectonic phases occurred about 17 Ma and somewhat less than 16 Ma. The Miocene deposits, mainly biocalcarenites, are middle Burdigalian and Langhian in age. During the Pleistocene the sea erosion cut several terrasse levels. Scattered remnants of conglomerates corresponding to the 12-15 and to 5-8 meters marine terrasses are ascribed to the last interglacial and to the beginning of the Wiirm glaciation (= 100000 years, Tyrrhenian II and III). The 5-8 meters terrasse, which is of particular interest, was deposited in a narrow marine erosion platform; the corresponding deposits tend to fill the entry of the caves excavated in the sea cliffs during the Upper Pleistocene such as Lapa de. St" Margarida and Figueira Brava Cave. These holes, protected by overhanging parts of the cliffs as a sort of ceiling, were good shelters forman. With the advance of the Wiirm glaciation the sea level was progressively going down. About 30000 years ago, the 5-8 meters platform and the caves dug in the cliffs were elevated as related to an extensive coastal plain. The sea level was ca. 60 meters below the present level (Miskovski, 1987). The human communities found in these territories an excellent hunting ground. The Santa Margarida and Figueira Brava caves were thus natural shelters. A large number of remnants of their occupation are preserved such as shells, animal bones, a few Neanderthal remnants as well as lithic and bone implements. 14C (and U series) dating indicate an age about 30000 years for level 2 where archaeologic remnants were exploited.RUNPais, JoãoLegoinha, P.2009-03-30T10:41:58Z20002000-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/1874enginfo: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:RCAAP2024-03-11T03:32:00Zoai:run.unl.pt:10362/1874Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:14:54.260725Repositório 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 Gruta da figueira brava (Arrabida): Geological setting
title Gruta da figueira brava (Arrabida): Geological setting
spellingShingle Gruta da figueira brava (Arrabida): Geological setting
Pais, João
Miocene
Pleistocene
Portinho da Arrabida
Figueira Brava cave
Portugal
title_short Gruta da figueira brava (Arrabida): Geological setting
title_full Gruta da figueira brava (Arrabida): Geological setting
title_fullStr Gruta da figueira brava (Arrabida): Geological setting
title_full_unstemmed Gruta da figueira brava (Arrabida): Geological setting
title_sort Gruta da figueira brava (Arrabida): Geological setting
author Pais, João
author_facet Pais, João
Legoinha, P.
author_role author
author2 Legoinha, P.
author2_role author
dc.contributor.none.fl_str_mv RUN
dc.contributor.author.fl_str_mv Pais, João
Legoinha, P.
dc.subject.por.fl_str_mv Miocene
Pleistocene
Portinho da Arrabida
Figueira Brava cave
Portugal
topic Miocene
Pleistocene
Portinho da Arrabida
Figueira Brava cave
Portugal
description Separata do Tomo XXXVIII das Memories da Academia das Ciencias de Lisboa (Classe de Ciencias)
publishDate 2000
dc.date.none.fl_str_mv 2000
2000-01-01T00:00:00Z
2009-03-30T10:41:58Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/1874
url http://hdl.handle.net/10362/1874
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
_version_ 1799137801617276928

Registros relacionados