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Silurian graptolite biostratigraphy of the Galicia - Tras-os-Montes Zone (Spain and Portugal)

AutorPiçarra, José Manuel; Gutiérrez-Marco, J. C. ; Sá, Artur A.; Meireles, Carlos; González-Clavijo, E.
Palabras claveSilurian
Graptolites
Stratigraphy
Palaeogeography
Galicia
Trás-os-Montes zone
NW Iberian Peninsula
Fecha de publicaciónjun-2006
EditorSwedish Science Press
CitaciónGFF -Uppsala- 128(2): 185-188 (2006)
ResumenRevision 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.
DescripciónTrabajo presentado en Field Meeting of the International Subcommission on Silurian Stratigraphy. Götland (Suecia), 15-22 de agosto de 2005.
Versión del editorhttp://www.gff-online.se/site/article.asp?articleID=881
URIhttp://hdl.handle.net/10261/30737
ISSN1103-5897
E-ISSN2000-0863
Aparece en las colecciones: (IGE) Comunicaciones congresos
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