Sea level changes through the Jurassic/Cretaceous boundary in western Cuba indicated by taphonomic analysis

The taphonomical and microfacies analyses of the Guasasa Formation in the San Vicente section of western Cuba, allowed the recognition of regional sea level fluctuations through the Jurassic/Cretaceous transition. Four discrete taphofacies associated with different depositional conditions were chara...

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Bibliographic Details
Published inBoletín de la Sociedad Geológica Mexicana Vol. 66; no. 3; pp. 431 - 440
Main Authors Martínez, Rafael López, Barragán, Ricardo, Sánchez, Blanca E. Buitrón, Rojas, Reinaldo
Format Journal Article
LanguageEnglish
Published Sociedad Geológica Mexicana e Instituto de Geología de la UNAM 01.01.2014
Sociedad Geológica Mexicana, A.C
Subjects
ARTÍCULOS REGULARES / REGULAR ARTICLES
Geology
Geosciences, Multidisciplinary
cambios del nivel del mar
taphonomy
paleoecology
tafonomía
Límite Jurásico-Cretácico
Jurassic-Cretaceous boundary
sea level changes
paleoecología
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Summary:The taphonomical and microfacies analyses of the Guasasa Formation in the San Vicente section of western Cuba, allowed the recognition of regional sea level fluctuations through the Jurassic/Cretaceous transition. Four discrete taphofacies associated with different depositional conditions were characterized through the section. The paleoecological conditions reconstruction indicates that the site of deposition changed from a shallow water carbonate bank recognizable at the base of the section (late Tithonian facies of the San Vicente Member) into a deep-water basinal environment at its top through the Berriasian, as facies of the overlying El Americano member. This continuous deepening of the basin was interrupted only by a short-term sea level drop close to the Jurassic/Cretaceous boundary
ISSN:1405-3322
1405-3322
DOI:10.18268/BSGM2014v66n3a2