The Tertiary Grès de Ville of the Barrême Basin: feather edge equivalent to the Grès d'Annot?
Martin J. Evans, Trevor Elliott, Gillian M. Apps, Maria A. Mange-Rajetzky, 2004. "The Tertiary Grès de Ville of the Barrême Basin: feather edge equivalent to the Grès d'Annot?", Deep-Water Sedimentation in the Alpine Basin of SE France: New perspectives on the Grès d'Annot and related systems, P. Joseph, S. A. Lomas
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The Tertiary Grès de Ville in the Barrême Basin of the French Alps is conventionally considered to be the feather edge equivalent to the Grès d'Annot to the east. Both units accumulated in a province of thrust-sheet-top basins behind the initial thrust front and were supplied from a southerly hinterland (Maures-Esterel/Corsica-Sardinia). The units are also partially coeval, with the Grès de Ville being equivalent to the youngest part of the Grès d'Annot. However, the units accumulated in structurally distinct sub-basins that were separated by a fold (the St Lions anticline) that was growing at the time of Grès de Ville deposition. The Grès de Ville accumulated close to storm wave base, whereas deposition of the Grès d'Annot was notably deeper, indicating that the Barrême Basin was structurally higher than the Grès d'Annot Basin. There is also evidence that the Grès de Ville and the Grès d'Annot were fed by separate sediment transport paths linked to different drainage basins in the hinterland. It is therefore an oversimplification to regard the Grès de Ville as a feather edge to the Grès d'Annot; instead it should be regarded as an independent element of the fill of the Barrême Basin.
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Deep-Water Sedimentation in the Alpine Basin of SE France: New perspectives on the Grès d'Annot and related systems
The Grès d′Annot Formation of SE France constitutes a classic and outstanding example of a sand-rich turbidite system controlled by synsedimentary tectonics, and has often been used as an outcrop analogue for deep-water hydrocarbon reservoirs. Over the last 10 years, research efforts by different academic and industrial teams have led to important reappraisals of prevailing ideas on the Gres d′Annot, particularly on the nature and controlling factors of the depositional processes, the small-scale architecture and sequence organization of the deposits, the tectonic regime of the basin and its impact on palaeogeography, and the interaction between sediment gravity flows and basin-floor topography.
This volume offers a multidisciplinary overview and draws up the ′state-of-the-art′ of scientific knowledge on this influential turbidite system. Complementary aspects are covered, from structural geology, sedimentology and sequence stratigraphy, to modelling of sedimentary processes and architectures, geochemistry, reservoir characterization, seismic modelling and uses as analogues for deep-marine hydrocarbon fields.
This book will be of use to both academic researchers (geologists and geophysicists) and industry professionals dealing with the characterization and modelling of deep-water sediments.