Atlantic Ocean Opening
Autor(a) principal: | |
---|---|
Data de Publicação: | 2006 |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10284/216 |
Resumo: | A new model for the opening of the Atlantic is proposed. Subaerial lava flows were emplaced since the breakup of the lithosphere till subaerial spreading centres became immersed. Twined evaporitic basins, with brines enriched by spilitisation of the basalt of the lava flows, developed in each side of the mid-oceanic ridge. The Iberia offshore, and probably also the Newfoundland offshore, had particular geologic histories. In northern area, the breakup took place in a deepwater environment, so SDRs were not developed. In Iberia offshore, an incipient Benioff subduction zone could be the chiefly responsible for the compressional tectonic regime that took place since Upper Miocene (?). |
id |
RCAP_f19314cc727d8431fb927697dd4d9c35 |
---|---|
oai_identifier_str |
oai:bdigital.ufp.pt:10284/216 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Atlantic Ocean OpeningAtlantic marginsRiftingSDRs (Seward Dipping Reflectors)Iberia offshoreBenioff subductionPortugal tectonic inversionsA new model for the opening of the Atlantic is proposed. Subaerial lava flows were emplaced since the breakup of the lithosphere till subaerial spreading centres became immersed. Twined evaporitic basins, with brines enriched by spilitisation of the basalt of the lava flows, developed in each side of the mid-oceanic ridge. The Iberia offshore, and probably also the Newfoundland offshore, had particular geologic histories. In northern area, the breakup took place in a deepwater environment, so SDRs were not developed. In Iberia offshore, an incipient Benioff subduction zone could be the chiefly responsible for the compressional tectonic regime that took place since Upper Miocene (?).Repositório Institucional da Universidade Fernando PessoaCramez, Carlos2006-05-25T13:58:52Z2006-01-01T00:00:00Z2006-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject156059 bytesapplication/pdfapplication/pdfhttp://hdl.handle.net/10284/216engSemana Cultural da Universidade de Coimbra, Coimbra, 2006info: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:RCAAP2022-09-06T02:00:20Zoai:bdigital.ufp.pt:10284/216Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:38:10.775465Repositório 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 |
Atlantic Ocean Opening |
title |
Atlantic Ocean Opening |
spellingShingle |
Atlantic Ocean Opening Cramez, Carlos Atlantic margins Rifting SDRs (Seward Dipping Reflectors) Iberia offshore Benioff subduction Portugal tectonic inversions |
title_short |
Atlantic Ocean Opening |
title_full |
Atlantic Ocean Opening |
title_fullStr |
Atlantic Ocean Opening |
title_full_unstemmed |
Atlantic Ocean Opening |
title_sort |
Atlantic Ocean Opening |
author |
Cramez, Carlos |
author_facet |
Cramez, Carlos |
author_role |
author |
dc.contributor.none.fl_str_mv |
Repositório Institucional da Universidade Fernando Pessoa |
dc.contributor.author.fl_str_mv |
Cramez, Carlos |
dc.subject.por.fl_str_mv |
Atlantic margins Rifting SDRs (Seward Dipping Reflectors) Iberia offshore Benioff subduction Portugal tectonic inversions |
topic |
Atlantic margins Rifting SDRs (Seward Dipping Reflectors) Iberia offshore Benioff subduction Portugal tectonic inversions |
description |
A new model for the opening of the Atlantic is proposed. Subaerial lava flows were emplaced since the breakup of the lithosphere till subaerial spreading centres became immersed. Twined evaporitic basins, with brines enriched by spilitisation of the basalt of the lava flows, developed in each side of the mid-oceanic ridge. The Iberia offshore, and probably also the Newfoundland offshore, had particular geologic histories. In northern area, the breakup took place in a deepwater environment, so SDRs were not developed. In Iberia offshore, an incipient Benioff subduction zone could be the chiefly responsible for the compressional tectonic regime that took place since Upper Miocene (?). |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-05-25T13:58:52Z 2006-01-01T00:00:00Z 2006-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10284/216 |
url |
http://hdl.handle.net/10284/216 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Semana Cultural da Universidade de Coimbra, Coimbra, 2006 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
156059 bytes application/pdf 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_ |
1799130244293066752 |