Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt
Autor(a) principal: | |
---|---|
Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.9/4239 |
Resumo: | ABSTRACT: Based on drill hole sampling and sedimentary rock dating by palynology, the present research focuses on the palynostratigraphic events established in the key geological section of Guedelhinha-Lancadoiras-A lgare located in the Portuguese Neves-Corvo mine region, Iberian Pyrite Belt. The age data allow detailing the lithostratigraphic sequence and further understanding the complex structural setting, representing an important contribution to the geological knowledge of this sector located to the immediate WNW of the Neves-Corvo VMS deposit. The combination of the studied events allows the reconstruction of the Devonian-Carboniferous sedimentation and paleoenvironments along the Iberian Pyrite Belt. Several stratigraphic hiatuses identified in the Neves-Corvo region by the palynological record are con-firmed, mainly occurring from the mid Frasnian to mid Famennian, from the early and mid Strunian, and from the early to late Tournaisian, which were mainly coincident with the worldwide extinction events, in particular during Frasnian-Famennian and Late Devonian times. Extensional tectonics and related gravitational faults, local uplift mechanisms and intense volcanic activity could also explain the lack of palynological data and sedimentary hiatus. In this research, the importance of the late Strunian times in the Iberian Pyrite Belt (Miospore Biozone LN of the Neves Formation) is highlighted, confirming the contemporaneity of felsic volcanism, hydrothermalism, sulphide mineralization precipitation and black shale anoxic sedimentation. |
id |
RCAP_ebd222a0f05eeaa3ebf9e64e0e7356bb |
---|---|
oai_identifier_str |
oai:repositorio.lneg.pt:10400.9/4239 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite BeltPalynostratigraphyDevonianCarboniferousIberian Pyrite BeltABSTRACT: Based on drill hole sampling and sedimentary rock dating by palynology, the present research focuses on the palynostratigraphic events established in the key geological section of Guedelhinha-Lancadoiras-A lgare located in the Portuguese Neves-Corvo mine region, Iberian Pyrite Belt. The age data allow detailing the lithostratigraphic sequence and further understanding the complex structural setting, representing an important contribution to the geological knowledge of this sector located to the immediate WNW of the Neves-Corvo VMS deposit. The combination of the studied events allows the reconstruction of the Devonian-Carboniferous sedimentation and paleoenvironments along the Iberian Pyrite Belt. Several stratigraphic hiatuses identified in the Neves-Corvo region by the palynological record are con-firmed, mainly occurring from the mid Frasnian to mid Famennian, from the early and mid Strunian, and from the early to late Tournaisian, which were mainly coincident with the worldwide extinction events, in particular during Frasnian-Famennian and Late Devonian times. Extensional tectonics and related gravitational faults, local uplift mechanisms and intense volcanic activity could also explain the lack of palynological data and sedimentary hiatus. In this research, the importance of the late Strunian times in the Iberian Pyrite Belt (Miospore Biozone LN of the Neves Formation) is highlighted, confirming the contemporaneity of felsic volcanism, hydrothermalism, sulphide mineralization precipitation and black shale anoxic sedimentation.ElsevierRepositório do LNEGPereira, ZéliaMatos, João XavierMendes, MárciaSolá, A. RitaAlbardeiro, LuísMorais, IgorAraújo, VítorPacheco, NelsonOliveira, José Tomás2024-01-31T12:00:49Z2023-102023-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/4239engPereira, Zélia... et.al - Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt. In: Geobios, 2023, vol. 80, p. 55-710016-699510.1016/j.geobios.2023.06.0041777-5728info: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:RCAAP2024-02-04T07:26:14Zoai:repositorio.lneg.pt:10400.9/4239Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:08:17.458638Repositório 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 |
Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt |
title |
Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt |
spellingShingle |
Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt Pereira, Zélia Palynostratigraphy Devonian Carboniferous Iberian Pyrite Belt |
title_short |
Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt |
title_full |
Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt |
title_fullStr |
Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt |
title_full_unstemmed |
Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt |
title_sort |
Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt |
author |
Pereira, Zélia |
author_facet |
Pereira, Zélia Matos, João Xavier Mendes, Márcia Solá, A. Rita Albardeiro, Luís Morais, Igor Araújo, Vítor Pacheco, Nelson Oliveira, José Tomás |
author_role |
author |
author2 |
Matos, João Xavier Mendes, Márcia Solá, A. Rita Albardeiro, Luís Morais, Igor Araújo, Vítor Pacheco, Nelson Oliveira, José Tomás |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório do LNEG |
dc.contributor.author.fl_str_mv |
Pereira, Zélia Matos, João Xavier Mendes, Márcia Solá, A. Rita Albardeiro, Luís Morais, Igor Araújo, Vítor Pacheco, Nelson Oliveira, José Tomás |
dc.subject.por.fl_str_mv |
Palynostratigraphy Devonian Carboniferous Iberian Pyrite Belt |
topic |
Palynostratigraphy Devonian Carboniferous Iberian Pyrite Belt |
description |
ABSTRACT: Based on drill hole sampling and sedimentary rock dating by palynology, the present research focuses on the palynostratigraphic events established in the key geological section of Guedelhinha-Lancadoiras-A lgare located in the Portuguese Neves-Corvo mine region, Iberian Pyrite Belt. The age data allow detailing the lithostratigraphic sequence and further understanding the complex structural setting, representing an important contribution to the geological knowledge of this sector located to the immediate WNW of the Neves-Corvo VMS deposit. The combination of the studied events allows the reconstruction of the Devonian-Carboniferous sedimentation and paleoenvironments along the Iberian Pyrite Belt. Several stratigraphic hiatuses identified in the Neves-Corvo region by the palynological record are con-firmed, mainly occurring from the mid Frasnian to mid Famennian, from the early and mid Strunian, and from the early to late Tournaisian, which were mainly coincident with the worldwide extinction events, in particular during Frasnian-Famennian and Late Devonian times. Extensional tectonics and related gravitational faults, local uplift mechanisms and intense volcanic activity could also explain the lack of palynological data and sedimentary hiatus. In this research, the importance of the late Strunian times in the Iberian Pyrite Belt (Miospore Biozone LN of the Neves Formation) is highlighted, confirming the contemporaneity of felsic volcanism, hydrothermalism, sulphide mineralization precipitation and black shale anoxic sedimentation. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-10 2023-10-01T00:00:00Z 2024-01-31T12:00:49Z |
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/10400.9/4239 |
url |
http://hdl.handle.net/10400.9/4239 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pereira, Zélia... et.al - Biostratigraphic and structural research of the Guedelhinha-Lançadoiras- Algaré sector of the Neves-Corvo mine region, Iberian Pyrite Belt. In: Geobios, 2023, vol. 80, p. 55-71 0016-6995 10.1016/j.geobios.2023.06.004 1777-5728 |
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 |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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_ |
1799137171207094272 |