Turbidite sedimentation occurs in different tectonic contexts, although the major fossil record of these deposits is preserved in the foreland basin systems. In such type of basins turbidite deposits coexist at different depth being located either in the more deeper portions (foredeep turbidite systems) or in the relatively shallower tectonically confined depressions occurring on top of the thrust belt (wedge-top turbidite systems). The possibility to find both preserved and superimposed one to each other these turbidite systems is strictly related to progressive shiftiing of the main depocentres towards the foreland, a process that is essentially controlled by thrust propagation. This sedimentary evolution is well recorded by the Marnoso-areanacea and the Lower Messinian Laga Formation the deposits of which show many features indicating a sedimentation in a confined basin in which thrust propagation controlled shape, dimension and topography of the basin as well as the geometry of the deposits and the resulting facies.
The lower-middle Messinian turbidite deposits of the Laga Basin (central Apennines, Italy) / Milli, S.; Marini, M.; Moscatelli, M.. - (2019). (Intervento presentato al convegno 34th IAS International Meeting of Sedimentology tenutosi a Roma).
The lower-middle Messinian turbidite deposits of the Laga Basin (central Apennines, Italy)
Milli S.
;
2019
Abstract
Turbidite sedimentation occurs in different tectonic contexts, although the major fossil record of these deposits is preserved in the foreland basin systems. In such type of basins turbidite deposits coexist at different depth being located either in the more deeper portions (foredeep turbidite systems) or in the relatively shallower tectonically confined depressions occurring on top of the thrust belt (wedge-top turbidite systems). The possibility to find both preserved and superimposed one to each other these turbidite systems is strictly related to progressive shiftiing of the main depocentres towards the foreland, a process that is essentially controlled by thrust propagation. This sedimentary evolution is well recorded by the Marnoso-areanacea and the Lower Messinian Laga Formation the deposits of which show many features indicating a sedimentation in a confined basin in which thrust propagation controlled shape, dimension and topography of the basin as well as the geometry of the deposits and the resulting facies.File | Dimensione | Formato | |
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