The Enigmatic Upper Ordovician of the Naturtejo UNESCO Global Geopark (Portugal)

Naturtejo UNESCO Global Geopark (Portugal) area includes deposits from the Neoproterozoic to the Quaternary. Despite its limited exposure area in major Variscan folded structures, the Ordovician series hosts some of its most famous geological heritage features, such as the Penha Garcia Ichnological...

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Main Authors: Sofia Pereira, Jorge Colmenar, Cristiana Esteves, Ícaro Dias da Silva, Miguel Pires, Carlos Neto de Carvalho
Format: Article
Language:English
Published: OICC Press 2021-06-01
Series:Geoconservation Research
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Online Access:http://gcr.khuisf.ac.ir/article_680198_4465320802da4ad51195c461c54bc565.pdf
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author Sofia Pereira
Jorge Colmenar
Cristiana Esteves
Ícaro Dias da Silva
Miguel Pires
Carlos Neto de Carvalho
author_facet Sofia Pereira
Jorge Colmenar
Cristiana Esteves
Ícaro Dias da Silva
Miguel Pires
Carlos Neto de Carvalho
author_sort Sofia Pereira
collection DOAJ
description Naturtejo UNESCO Global Geopark (Portugal) area includes deposits from the Neoproterozoic to the Quaternary. Despite its limited exposure area in major Variscan folded structures, the Ordovician series hosts some of its most famous geological heritage features, such as the Penha Garcia Ichnological Park.  The Upper Ordovician of the Central Iberian Zone is still far from being as well-understood as it is in other areas. Extensional tectonics, magmatism, global eustatic and climatic changes generated a great variability of sequences in a reduced geographical area. The Upper Ordovician of the Naturtejo region, often considered poorly represented, is here demonstrated to have a great potential and to be more complete than previously assumed. New stratigraphic and paleontologic data are presented for the three Upper Ordovician-bearing structures within Naturtejo: Fajão-Muradal, Vila Velha de Ródão and Penha Garcia synclines. Remobilized upper Katian fossiliferous clasts were found for the first time within the Hirnantian Casal Carvalhal from the Fajão-Muradal Syncline and a new fossil site is added to the Orvalho GeoTrail. In the Vila Velha de Ródão Syncline, the Barroca da Senhora stream fossil site constitutes a new geosite within the protected area of Portas de Ródão Natural Monument, presenting the most complete Upper Ordovician sequence of this structure. Finally, the stratigraphic and paleontologic record of the Vale Feitoso estate offers all the conditions to propose a new theme geotrail, diversifying the tourism in the Monfortinho village (Penha Garcia Syncline).
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language English
publishDate 2021-06-01
publisher OICC Press
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series Geoconservation Research
spelling doaj-art-a88c6b313f2947299b2468d09e0a3f512025-02-02T22:36:38ZengOICC PressGeoconservation Research2645-46612588-73432021-06-014110411210.30486/gcr.2021.1913408.1053680198The Enigmatic Upper Ordovician of the Naturtejo UNESCO Global Geopark (Portugal)Sofia Pereira0Jorge Colmenar1Cristiana Esteves2Ícaro Dias da Silva3Miguel Pires4Carlos Neto de Carvalho5Centro de Geociências, Universidade de Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, PortugalCentro de Geociências, Universidade de Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, PortugalDepartment of Geology, Ghent University. Krijgslaan 281, S8. 9000 Ghent, BelgiumInstituto Dom Luiz, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, PortugalCentro de Geociências, Universidade de Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, PortugalNaturtejo UNESCO Global Geopark, Instituto D. Luiz, Univerisity of LisbonNaturtejo UNESCO Global Geopark (Portugal) area includes deposits from the Neoproterozoic to the Quaternary. Despite its limited exposure area in major Variscan folded structures, the Ordovician series hosts some of its most famous geological heritage features, such as the Penha Garcia Ichnological Park.  The Upper Ordovician of the Central Iberian Zone is still far from being as well-understood as it is in other areas. Extensional tectonics, magmatism, global eustatic and climatic changes generated a great variability of sequences in a reduced geographical area. The Upper Ordovician of the Naturtejo region, often considered poorly represented, is here demonstrated to have a great potential and to be more complete than previously assumed. New stratigraphic and paleontologic data are presented for the three Upper Ordovician-bearing structures within Naturtejo: Fajão-Muradal, Vila Velha de Ródão and Penha Garcia synclines. Remobilized upper Katian fossiliferous clasts were found for the first time within the Hirnantian Casal Carvalhal from the Fajão-Muradal Syncline and a new fossil site is added to the Orvalho GeoTrail. In the Vila Velha de Ródão Syncline, the Barroca da Senhora stream fossil site constitutes a new geosite within the protected area of Portas de Ródão Natural Monument, presenting the most complete Upper Ordovician sequence of this structure. Finally, the stratigraphic and paleontologic record of the Vale Feitoso estate offers all the conditions to propose a new theme geotrail, diversifying the tourism in the Monfortinho village (Penha Garcia Syncline).http://gcr.khuisf.ac.ir/article_680198_4465320802da4ad51195c461c54bc565.pdfnaturtejo geopark, nicolella fauna, kralodvorian, high-latitud peri-gondwana, boda eventcentral portugal
spellingShingle Sofia Pereira
Jorge Colmenar
Cristiana Esteves
Ícaro Dias da Silva
Miguel Pires
Carlos Neto de Carvalho
The Enigmatic Upper Ordovician of the Naturtejo UNESCO Global Geopark (Portugal)
Geoconservation Research
naturtejo geopark, nicolella fauna, kralodvorian, high-latitud peri-gondwana, boda event
central portugal
title The Enigmatic Upper Ordovician of the Naturtejo UNESCO Global Geopark (Portugal)
title_full The Enigmatic Upper Ordovician of the Naturtejo UNESCO Global Geopark (Portugal)
title_fullStr The Enigmatic Upper Ordovician of the Naturtejo UNESCO Global Geopark (Portugal)
title_full_unstemmed The Enigmatic Upper Ordovician of the Naturtejo UNESCO Global Geopark (Portugal)
title_short The Enigmatic Upper Ordovician of the Naturtejo UNESCO Global Geopark (Portugal)
title_sort enigmatic upper ordovician of the naturtejo unesco global geopark portugal
topic naturtejo geopark, nicolella fauna, kralodvorian, high-latitud peri-gondwana, boda event
central portugal
url http://gcr.khuisf.ac.ir/article_680198_4465320802da4ad51195c461c54bc565.pdf
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