Estudio de las microfacies de la sección “Peñón Cortado” (Córdoba, España) e interpretación paleoambiental y evolución de la cuenca
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2023
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Abstract
El estudio presentado a continuación describe e interpreta la evolución de la cuenca marina del Devónico inferior representada en la sección “Peñón Cortado”, situada en la provincia de Córdoba, España, más concretamente en Sierra Morena en el dominio geológico de la zona de Ossa Morena. La sección está compuesta por una serie de materiales marinos compuestos por calizas, lutitas, calizas margosas, niveles arenosos, etc. En ella aparecen restos de braquiópodos, briozoos, corales, crinoides, trilobites, entre otros. A través del estudio de muestras tomadas en la mencionada sección y mediante el análisis de los factores ambientales deducibles se ha llegado a interpretar la evolución de un ambiente marino somero con presencia de facies arrecifales, que evoluciona en un contexto transgresivo con pequeños eventos regresivos.
The study presented below describes and interprets the evolution of the lower Devonian marine basin represented in the “Peñón Cortado” section, located in the province of Córdoba, Spain, more specifically in Sierra Morena in the geological domain of the “Ossa Morena” area. The section is composed of a series of marine sediments composed of limestone, shale, loamy limestone, sandy levels, etc. In it appear remains of brachiopods, bryozoans, corals, crinoids, trilobites, among others. Through the study of thin sections of simples taken from the cited section and by means of análisis of the infered environmental factors, we identify a marine environment containing reefal facies that evolved in a transgresive background with local regressive events.
The study presented below describes and interprets the evolution of the lower Devonian marine basin represented in the “Peñón Cortado” section, located in the province of Córdoba, Spain, more specifically in Sierra Morena in the geological domain of the “Ossa Morena” area. The section is composed of a series of marine sediments composed of limestone, shale, loamy limestone, sandy levels, etc. In it appear remains of brachiopods, bryozoans, corals, crinoids, trilobites, among others. Through the study of thin sections of simples taken from the cited section and by means of análisis of the infered environmental factors, we identify a marine environment containing reefal facies that evolved in a transgresive background with local regressive events.