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Procesos de silicificación y dolomitización en el Turoniense (provincia de Cuenca)

Authors: Fernandez- Calvo, C; Bustillo, Mª Ángeles;

Procesos de silicificación y dolomitización en el Turoniense (provincia de Cuenca)

Abstract

En la región manchega aparecen sílex nodulares y en niveles discontinuos, asociados frecuentemente con el frente de dolomitización que afecta a los materiales turonienses. Estos sílex se encuentran incluidos tanto en calizas fosilíferas como en dolomías, parcialmente dedolomitizadas, cuya textura deposicional no se ha conservado. Se han diferenciado distintos tipos de sílex en función de las microfacies calcárea afectadas. El análisis textural del sílex demuestra que, aunque el mineral constituyente actual es cuarzo, las silicificaciones fueron en gran parte de ópalo. La alteración del continente bajo un clima templado a cálido y húmedo condujo a la formación de disoluciones enriquecidas en sílice. Pensamos que la silificación y dolomitización se produjeron casi simultáneamente, y directamente relacionadas con la zona de mezcla de aguas continentales y marinas, creada por el inicio de las condiciones regresivas que separan los dos subciclos sedimentarios del Cretácico Superior.

No

Keywords

Silex, Cretácico Superior, Dolomias, Mezcla de aguas

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green