Academic literature on the topic 'Plates-formes carbonatées – Vercors (France ; massif)'
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Dissertations / Theses on the topic "Plates-formes carbonatées – Vercors (France ; massif)":
Thomas, Audrey. "Géométrie de la progradation urgonienne et propriétés pétrophysiques des différents faciès (Vercors, SE France)." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0360.
Controversial interpretations about the internal geometry and direction of progradation within the Vercors' urgonian carbonate platform have arisen over the past decades. In order to test these interpretations two main transects of correlated sections have been constructed, a N-S one following the eastern cliff of the Plateau, and a NE-SW oriented one along its southern cliff. Results support a centripetal progradation toward N-S the axis of the Plateau, but overally oriented to the south, in accordence with the Clavel et al. interpretation (2014) and the earlier partial results of Richet (2011). The N-S progradation along the eastern cliff is an apparent one, as the core of the carbonate platform was likely located on the External Cristalline Massifs (Belledonne), which fed a dominant overall spreading to the SW. Analysis of picture panoramas to the north in the Chartreuse and Bauges massifs also support an overall N-S progradation, based on stratal geometries. On a stratigraphic point of view, two upper Hauterivian calcarenite units (HS1 and HS2 only present in the north) and six Barremian to lower Aptian calcarenite and rudistids carbonates units (U1 to U6) have been defined. Based on new ammonite findings with the help of A. Pictet, it appears that the urgonian succession is mostly of Barremian age. On a sedimentologic and sequence stratigraphic point of view, both transects support the interpretation of two successive carbonate systems (a marginal calcarenite system followed by a flooding facies of rudist carbonates) within urgonian sequences, a model framed by D. Quesne (1998), in opposition with the model of Masse (1976) which is based on the coevalty of all facies in the depositional system. Petrophysical analyses have been performed in most sections in order to provide a strong correlated caracterisation of the urgonian limestones in Vercors. Very low porosity and low permeability values on the whole outcrop caracterise this analogue as a tight carbonate reservoir rock and may improve the knowledge and modeling of this type of reservoir
Chevallier, Thierry. "Les formations carbonatées de la séquence ptérocérienne (Kimméridgien pars) dans le Jura francais et les régions voisines." Lyon 1, 1986. https://tel.archives-ouvertes.fr/tel-02276580/document.
Cochet, Fabrice. "Stratigraphie séquentielle dans les carbonates de l'oxfordien terminal - kimméridgien du Jura français." Lyon 1, 1995. http://www.theses.fr/1995LYO10326.
Thiry-Bastien, Philippe. "Stratigraphie séquentielle des calcaires bajociens de l'est de la France (Jura - bassin de Paris)." Lyon 1, 2002. https://hal.archives-ouvertes.fr/tel-02013197.
Richet, Rémy. "high-resolution 3d stratigraphic modelling of the gresse-en-vercors lower cretaceous carbonate platform (SE france) : from digital outcrop modeling to carbonate sedimentary system characterization." Thesis, Aix-Marseille 1, 2011. http://www.theses.fr/2011AIX10144.
Carbonate platforms are characterized by complex sedimentary and stratigraphic architectures that can be expressed at length scale exceeding single outcrops. This work focuses on the Barremian (Lower Cretaceous) deposits of the Gresse-en-Vercors cliff (southeastern France) that provide a seismic-scale slice though a platform margin - analogous to Middle East reservoirs - ideal to study large scale carbonate platform developments in continuous. The cliffs are 500 m high and extend for 25 km along depositional dip, straddling the transition from shallow water platform to deeper basin. New biostratigraphical data shows that the Vercors platform is mainly Lower Barremian. Four stratigraphic sequences were defined, with two complete platform stages, separated by three drowning events.New high-resolution numerical data (LIDAR point-set and high-resolution georeferenced photos) obtained by helicopter survey, allowed the realization of a 3D high-resolution DEM over the entire outcrops. Integrating the stratigraphic observations and the DEM in gOcad result in a continuous 3D stratigraphic architecture and facies model of the carbonate outcrop that can be used for stratigraphic and sedimentological interpretations. The resulting geological model demonstrates that outcrop numerical data and 3D geological modeling are pertinent tools for improving carbonate outcrop characterization and conceptual models of carbonate platform systems. It allows to establish subtle sedimentary profiles and high resolution facies mosaic along seismic scale platform trend. This approach is particularly critical for the 3D characterization of clinoforms and stratigraphic system tracts in non-cylindrical carbonate systems: for example, apparent low stand wedge or distal onlapping lobes in 2D are in reality prograding high stand systems in 3D
Gréselle, Benjamin. "impact des variations paléoclimatiques sur la sédimentation carbonatée au Valanginien." Phd thesis, Université Claude Bernard - Lyon I, 2007. http://tel.archives-ouvertes.fr/tel-00275099.