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| Title: | Silurian graptolite biostratigraphy of the Galicia - Tras-os-Montes Zone (Spain and Portugal) |
| Authors: | Piçarra, José Manuel; Gutiérrez-Marco, J. C.; Sá, Artur A.; Meireles, Carlos; González-Clavijo, E. |
| Keywords: | Silurian Graptolites Stratigraphy Palaeogeography Galicia Trás-os-Montes zone NW Iberian Peninsula |
| Issue Date: | Jun-2006 |
| Publisher: | Swedish Science Press |
| Citation: | GFF -Uppsala- 128(2): 185-188 (2006) |
| Abstract: | 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. |
| Description: | Trabajo presentado en Field Meeting of the International Subcommission on Silurian Stratigraphy. Götland (Suecia), 15-22 de agosto de 2005. |
| Publisher version (URL): | http://www.gff-online.se/site/article.asp?articleID=881 |
| URI: | http://hdl.handle.net/10261/30737 |
| ISSN: | 1103-5897 |
| E-ISSN: | 2000-0863 |
| Appears in Collections: | (IGE) Comunicaciones congresos |
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