2021
DOI: 10.3989/egeol.44385.604
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Análisis de elementos traza en braquiópodos del Jurásico Inferior del Paleomargen Sud-Ibérico (SE de España). Correlación con las señales bióticas e implicaciones ambientales en torno al Evento de Extinción Masiva del Toarciense inferior

Abstract: En el Jurásico Inferior se registran diversos eventos críticos que influyeron significativamente en los ecosistemas marinos del Tethys occidental. Entre las comunidades bentónicas, en el Paleomargen Sudibérico, los braquiópodos se vieron particularmente afectados por dichos eventos. El episodio tectono-sedimentario distensivo asociado a la apertura del proto-Atlántico conllevó el colapso de las amplias plataformas someras imperantes en el Tethys hasta el Sinemuriense superior-Pliensbaquiense basal, con la cons… Show more

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“…In the rest of the sections, cherty limestones rich in sponge spicules were deposited in open platform or hemipelagic contexts. In general, in relation to this R1 rupture, there was a deepening of the platform, although it was not of equal magnitude throughout the overall platform [59].…”
Section: Sedimentary Environmentmentioning
confidence: 90%
“…In the rest of the sections, cherty limestones rich in sponge spicules were deposited in open platform or hemipelagic contexts. In general, in relation to this R1 rupture, there was a deepening of the platform, although it was not of equal magnitude throughout the overall platform [59].…”
Section: Sedimentary Environmentmentioning
confidence: 90%