Primeros resultados magnetoestratigráficos del Triásico MedioSuperior (Ladiniense-Karniense) en la Cordillera Ibérica occidental (Cuevas de Ayllón)

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Título:	Primeros resultados magnetoestratigráficos del Triásico MedioSuperior (Ladiniense-Karniense) en la Cordillera Ibérica occidental (Cuevas de Ayllón)
Autor:	Ruiz, V. C.; Sopeña, Alfonso CSIC ORCID; Rey, Daniel; Villalaín, Juan J.; Gialanella, P. R.; Osete, María Luisa CSIC ORCID
Palabras clave:	magnetostratigraphy Ladinian Karnian Iberian Ranges Spain palaeomagnetism Magnetostratigraphy
Fecha de publicación:	1999
Citación:	Geogaceta, 25: 179-82
Resumen:	A magnetostratigraphic investigation on a Middle-Late Triassic section outcropping at Cuevas de Ayllón (westernmost margin of the Iberían Ranges, Spain) has been performed. The section most1y consists of a thick sequence of interbedded mudstones and sandstones. The age of the sampled formation has been established as Ladinian-Karnian on the basis of palynological assemblages. 123 samples were subjected to a progressive thermal demagnetization up to 680º C. A multicomponent magnetization behaviour has been observed. The characteristic component could be isolated from 575-620º C up to 680º C, in 74 samples showed both polarities and allowed to define a consistent magnetic zonation. The data presented wil1 contribute to the construction of a standard polarity sea/e for the Triassic time span.
URI:	http://hdl.handle.net/10261/46922
ISSN:	0213683x
Aparece en las colecciones:	(IGEO) Libros y partes de libros