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The Global Boundary Stratotype Section and Point (GSSP) of the Toarcian-Aalenian Boundary (Lower-Middle Jurassic)

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Cresta, S. y Goy, Antonio y Ureta Gil, María Soledad y Arias Fernández, María del Carmen y Barrón López, Eduardo y Bernard García, Julio y Canales Fernández, María Luisa y García Joral, Fernando y García Romero, Emilia y Gialanella, P.R. y Gómez Fernández, Juan José y González, J.A. y Herrero Matesanz, Concepción y Martínez Gutiérrez, Gemma y Osete López, María Luisa y Perilli, Nicola y Villalaín, J.J. (2001) The Global Boundary Stratotype Section and Point (GSSP) of the Toarcian-Aalenian Boundary (Lower-Middle Jurassic). Episodes, 24 (3). pp. 166-175. ISSN 0705-3797

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Resumen

The Global Boundary Stratotype Section and Point
(GSSP) for the Aalenian Stage, formally defined at the
base of bed FZ107 in the Fuentelsaz section, Castilian
Branch of the Iberian Range (Spain), has been ratified
by the IUGS. Multidisciplinary biostratigraphical data,
based on ammonites, brachiopods, ostracods, bivalves,
foraminifera, calcareous nannofossils assemblages and
palynomorphs, assure worldwide correlations; magnetostratigraphic
data increase this correlation power.
The position of the boundary coincides with the first
occurrence of the ammonite assemblage characterized
by Leioceras opalinum and Leioceras lineatum and corresponds
with a normal polarity interval correlated with
the up-to-date Jurassic magnetic polarity time scale
(Gradstein and others, 1994; Ogg, 1995).


Tipo de documento:Artículo
Palabras clave:Toarcian-Aalenian Boundary; Lower-Middle Jurassic
Materias:Ciencias > Geología > Geología estratigráfica
Código ID:16664
Depositado:10 Oct 2012 11:25
Última Modificación:21 Abr 2015 18:28

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