Actividad de fallas durante el depósito de la Formación Camarillas (Barremiense) en la subcuenca de Galve (E de España)
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Abstract
En la subcuenca de Galve, fallas normales ENE-OSO (fallas de Remenderuelas,
Camarillas y El Batán) fueron activas en el Barremiense, durante la
sedimentación de la Formación Camarillas. Estas fallas, analizadas en un
corte N-S, definen un graben y un semigraben y permiten explicar las variaciones
de espesor en esta formación (de 350 m a más de 800 m). La división
del registro sedimentario en seis intervalos estratigráficos y el análisis
de sus variaciones de espesor a un lado y otro de las fallas indica que éstas
fueron activas y registraron una disminución de su actividad durante la sedimentación
de la unidad y un cambio en el patrón de subsidencia. Los resultados
también demuestran procesos de interacción en el tiempo entre diferentes
fallas
This work analyses the Barremian activity of ENE-WSW normal faults during the sedimentation of the Camarillas Formation in a N-S section of the Galve subbasin. The main structure is characterised by a graben and a half-graben and displays important thickness variations, ranging from 350 m to more than 800 m. The sedimentary record has been divided in six stratigraphic intervals and their thickness changes between sections located in different fault blocks indicate that main faults were active and recorded a general decrease in fault activity during the sedimentation of this formation. This change also implied a different subsidence pattern. Results also demonstrate the interaction process between different faults with activity migrating from one to another
This work analyses the Barremian activity of ENE-WSW normal faults during the sedimentation of the Camarillas Formation in a N-S section of the Galve subbasin. The main structure is characterised by a graben and a half-graben and displays important thickness variations, ranging from 350 m to more than 800 m. The sedimentary record has been divided in six stratigraphic intervals and their thickness changes between sections located in different fault blocks indicate that main faults were active and recorded a general decrease in fault activity during the sedimentation of this formation. This change also implied a different subsidence pattern. Results also demonstrate the interaction process between different faults with activity migrating from one to another







