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El patrimonio geológico del Ordovícico y Silúrico de la región de Arouca (Portugal)



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Sá, Artur Abreu y Gutiérrez Marco, Juan Carlos y Rocha, Daniela Maria Teixeira da y Rábano, Isabel y Piçarra, José Manuel y Brilha, José Bernardo Rodrigues y Sarmiento, Graciela y Valério, Manuel (2008) El patrimonio geológico del Ordovícico y Silúrico de la región de Arouca (Portugal). Geogaceta, 44 . pp. 95-98. ISSN 0213-683X

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URL Oficial: http://www.sociedadgeologica.es/publicaciones_geogaceta.html


The studied region is situated in the Aveiro district, about 50 km SW of Oporto (northern Portugal) and has a
rich geological, biological and cultural heritage. The Arouca Geopark was formally established there in late
2007, under the auspices of Arouca’s Municipal Chamber, to reunite 36 geosites from which some of them
involve remarkable Ordovician and Silurian rocks and fossils. Outcrops of both periods belong to the Valongo-
Tamames syncline of the Central Iberian Zone. Lower Palaeozoic rocks around the Canelas Slate Quarry are of
special interest, leading to the creation of a geotouristic route visiting three Ordovician units (Santa Justa quartzites,
Valongo shales and Sobrido quartzite plus glaciomarine diamictites) and one Silurian (graptolitic black shales),
as well as a Roman gold mine dug in the Lower Ordovician quartzites. However, the most outstanding geosite
is the quarry itself, where Middle Ordovician giant trilobites (up to 70 cm in size) and trilobite clusters (up to
thousands of specimens) occur in large slabs of slate and are recovered during the exploitation. The Geological
Interpretation Centre of Canelas, located near the quarry and open since 2006, is one of the main tourist
attractions of the Arouca Geopark, created to preserve and disseminate knowledge about trilobites and the
Ordovician world, and having received more than 10,000 visitors in its first 17 months.

Tipo de documento:Artículo
Palabras clave:Geological heritage, Ordovician, Silurian, Arouca Geopark, Portugal.
Materias:Ciencias > Geología > Paleontología
Ciencias > Geología > Geología estratigráfica
Código ID:12240
Depositado:14 Feb 2011 13:19
Última Modificación:11 Dic 2018 08:42

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