Fluorine in volcanic rocks of Iceland

Detalhes bibliográficos
Autor(a) principal: Sigvaldason, Gudmundur E.
Data de Publicação: 1982
Outros Autores: Oskarsson, Niels
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/4900
Resumo: International Symposium on the Activity of Oceanic Volcanoes. Ponta Delgada, 4-9 August 1980.
id RCAP_9e77a3c0eff03d7a8a6a4cefaf0d3cc8
oai_identifier_str oai:repositorio.uac.pt:10400.3/4900
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Fluorine in volcanic rocks of IcelandGeochemistryPetrologyVolcanic SoilsInternational Symposium on the Activity of Oceanic Volcanoes. Ponta Delgada, 4-9 August 1980.The fluorine content of volcanic rocks from different volcano-tectonic environments in Iceland differs systematically in concert with other petrochemical parameters. The lowest abundance of fluorine (45-220 ppm F) is found in the petrochemically primitive ol-tholeiites of the rift zone. Evolved basalts ranging from ol-tholeiite to qz-tholeiite composition occur in the volcanic centers of the rift zone. These rocks contain 220-450 ppm F, while with alkaline affinities found in volcanic centers outside the rift zone contain up to 1600 ppm F. The variation in fluorine within the different rock suites is believed to reflect varying degree of crustal involvement in their genesis. In the rift zone fluorine chemistry of the basalts is believed to result from mixing with silicic magmas formed by anatexis in the rift zone crust. In the non-rifting volcanic centers the high fluorine results from a partial melting of amphibolite, which is believed to be a residual assemblage from earlier anatexis in the rift zone.Universidade dos AçoresRepositório da Universidade dos AçoresSigvaldason, Gudmundur E.Oskarsson, Niels2018-11-29T09:52:30Z1982-071982-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/4900engSIGVALDASON, Gudmundur E.; OSKARSSON, Niels (1982). Fluorine in volcanic rocks of Iceland. "Arquipélago. Série Ciências da Natureza", 3: p. 197.info: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:RCAAP2022-12-20T14:33:09Zoai:repositorio.uac.pt:10400.3/4900Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:27:13.534583Repositório 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 Fluorine in volcanic rocks of Iceland
title Fluorine in volcanic rocks of Iceland
spellingShingle Fluorine in volcanic rocks of Iceland
Sigvaldason, Gudmundur E.
Geochemistry
Petrology
Volcanic Soils
title_short Fluorine in volcanic rocks of Iceland
title_full Fluorine in volcanic rocks of Iceland
title_fullStr Fluorine in volcanic rocks of Iceland
title_full_unstemmed Fluorine in volcanic rocks of Iceland
title_sort Fluorine in volcanic rocks of Iceland
author Sigvaldason, Gudmundur E.
author_facet Sigvaldason, Gudmundur E.
Oskarsson, Niels
author_role author
author2 Oskarsson, Niels
author2_role author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Sigvaldason, Gudmundur E.
Oskarsson, Niels
dc.subject.por.fl_str_mv Geochemistry
Petrology
Volcanic Soils
topic Geochemistry
Petrology
Volcanic Soils
description International Symposium on the Activity of Oceanic Volcanoes. Ponta Delgada, 4-9 August 1980.
publishDate 1982
dc.date.none.fl_str_mv 1982-07
1982-07-01T00:00:00Z
2018-11-29T09:52:30Z
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/10400.3/4900
url http://hdl.handle.net/10400.3/4900
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv SIGVALDASON, Gudmundur E.; OSKARSSON, Niels (1982). Fluorine in volcanic rocks of Iceland. "Arquipélago. Série Ciências da Natureza", 3: p. 197.
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.publisher.none.fl_str_mv Universidade dos Açores
publisher.none.fl_str_mv Universidade dos Açores
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_ 1799130727205306368

Registros relacionados