T rust belts and foreland basins record the main phases of orogenic evolution. T ey are shaped by the coupled inf uence of deep (f exure, plate rheology and - nematics) and surf cial (erosion, sedimentation) geological processes, at dif erent time scales. T rust belts and foreland basins constitute important targets for sci- tists interested in both fundamental and applied (f uids, hydrocarbons) aspects. In the framework of a new cycle of workshops of the ILP task force on "Sedim- tary Basins", a three-day meeting on "T rust Belts and Foreland Basins" was or- nized in December 2005 on behalf of the Société Géologique de France and the - ciedad Geológica de España, hosted by the Institut Français du Pétrole near Paris. T e main purpose of the meeting was to of er the opportunity for Earth scientists from dif erent disciplines, i. e. geologists, geophysicists and geochemists, to present and share their dif erent knowledge on the processes governing the evolution of orogenic belts and adjacent forelands. A special emphasis had been given to make a "bridge" between the most recent advances in surface processes, geochemistry, provenance studies, f eld studies, analogue and numerical modelling, high reso- tion seismicity, and hydrocarbon prospect in forelands basins. T e conference was successful in bringing together scientists from academia and industry from nearly 20 countries.

Contenu

Surficial and Deep Processes in Thrust Belts.- Coupled Lithosphere-Surface Processes in Collision Context.- On Some Geometric Prism Asymmetries.- Exploration of Thrust Belts (1) : Seismic Imaging and Traps.- Understanding Seismic Propagation through Triangle Zones.- 2D Depth Seismic Imaging in the Gaspé Belt, a Structurally Complex Fold and Thrust Belt in the Northern Appalachians, Québec, Canada.- Exploration of Thrust Belts (2) : Fluid Flow and Hydrocarbon Systems.- Fluid Systems in Foreland Fold-and-Thrust Belts: An Overview from the Southern Pyrenees.- The Miocene Petroleum System of the Northern Apennines in the Central Po Plain (Italy).- Structural Modeling / Restoration.- Folds Kinematics in "Fold-and-Thrust Belts" the "Hinge Migration" Question, a Review.- The Use of Surface Restoration in Foothills Exploration: Theory and Application to the Sub-Andean Zone of Bolivia.- Plate Tectonic Setting and Cenozoic Deformation of Trinidad: Foldbelt Restoration in a Region of Significant Strike-Slip.- Kinematics of the SE Canadian Fold and Thrust Belt: Implications for the Thermal and Organic Maturation History.- Zagros/Makran Thrust Belts.- Early Reactivation of Basement Faults in Central Zagros (SW Iran): Evidence from Pre-folding Fracture Populations in Asmari Formation and Lower Tertiary Paleogeography.- Evolution of Maturity in Northern Fars and in the Izeh Zone (Iranian Zagros) and Link with Hydrocarbon Prospectivity.- Mechanical Constraints on the Development of the Zagros Folded Belt (Fars).- Rates and Processes of Active Folding Evidenced by Pleistocene Terraces at the Central Zagros Front (Iran).- The Salt Diapirs of the Eastern Fars Province (Zagros, Iran): A Brief Outline of their Past and Present.- The Role of Pre-Existing Diapirs in Fold and ThrustBelt Development.- Impact of Sedimentation on Convergent Margin Tectonics: Example of the Makran Accretionary Prism (Pakistan).- Offshore Frontal Part of the Makran Accretionary Prism: The Chamak Survey (Pakistan).- Carpathian Thrust Belt.- The Geometry of the South Leading Carpathian Thrust Line and the Moesia Boundary: The Role of Inherited Structures in Establishing a Transcurent Contact on the Concave Side of the Carpathians.- Role of the Foredeep Evaporites in Wedge Tectonics and Formation of Triangle Zones: Comparison of the Carpathian and Pyrenean Thrust Fronts.- Reservoir Properties of Miocene Sandstones in Rzeszow Area (Carpathian Foredeep, Poland).- Relationship between Hydrocarbon Generation and Reservoir Development in the Carpathian Foreland (Poland).- Tectonics, Sedimentation and Denudation in Thrust Belts.- Tectonic and Climatic Controls on Sedimentation in Late Miocene Cortemaggiore Wedge-Top Basin (Northwestern Apennines, Italy).- Meso-Cenozoic Evolution of Mountain Range - Intramontane Basin Systems in the Southern Siberian Altai Mountains by Apatite Fission-Track Thermochronology.- Slab Retreat and Active Shortening along the Central-Northern Apennines.