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| Título: | Silurian graptolite biostratigraphy of the Galicia - Tras-os-Montes Zone (Spain and Portugal) |
Autor: | Piçarra, José Manuel; Gutiérrez-Marco, J. C. CSIC ORCID; Sá, Artur A.; Meireles, Carlos; González-Clavijo, E. | Palabras clave: | Silurian Graptolites Stratigraphy Palaeogeography Galicia Trás-os-Montes zone NW Iberian Peninsula |
Fecha de publicación: | jun-2006 | Editor: | Swedish Science Press | Citación: | GFF -Uppsala- 128(2): 185-188 (2006) | Resumen: | Revision and reappraisal of Silurian graptolite data occurring within the Galicia – Trás-os-Montes Zone (NW Iberia) has resulted in a new stratigraphical interpretation of the entire sequence. This is relatively thin, with late Rhuddanian to mid-Telychian black cherts at the base overlain by late Telychian to early Ludfordian black shales, and ending with shales and limestones of Late Silurian age. A total of 10 graptolite biozones was firmly recognized; four others are doubtfully recognized. Palaeogeographical/biogeographical data support the parautochthonous nature formerly assigned to the Silurian succession of the “Schistose Domain”, as not being a direct prolongation of the Silurian of the Central-Iberian Zone. | Descripción: | Trabajo presentado en Field Meeting of the International Subcommission on Silurian Stratigraphy. Götland (Suecia), 15-22 de agosto de 2005. | Versión del editor: | http://www.gff-online.se/site/article.asp?articleID=881 | URI: | http://hdl.handle.net/10261/30737 | ISSN: | 1103-5897 | E-ISSN: | 2000-0863 |
| Aparece en las colecciones: | (IGE) Comunicaciones congresos |
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