Continental Rifted Margins 1. Gwenn Peron-Pinvidic

Continental Rifted Margins 1

the North-East Atlantic, with the white lines re...

4 Chapter 3Figure 3.1. Diagrams highlighting three major stages of the Wilson Cycle: a) rif...Figure 3.2. a) Tectonic map of the West Mediterranean region showing the locatio...Figure 3.3. Maps and cross-sections across the Alpine orogen showing the relatio...Figure 3.4. Diagram summarizing the geological characteristics of structural dom...Figure 3.5. a) Tectonic map of the Austroalpine and South Penninic Units samplin...Figure 3.6. Criteria used in the Punta Rosa Unit to recognize remnants of magma-...Figure 3.7. Schematic cross-sections showing the evolution of distinct basement ...Figure 3.8. Characteristics and architecture of classical rift and supra-detachm...Figure 3.9. Summary of the observations enabling the identification of the forme...Figure 3.10a. Summary of the main field observations characterizing the Iberian ...Figure 3.10b. Restored cross-section across the Iberian margin of the Pyrenean r...Figure 3.11a. Different field relationships exposed in the Senhadja Nappe in the...Figure 3.11b. Diagram illustrating the idealized architecture of the North Afric...Figure 3.11c. Diagram illustrating the idealized architecture of the North Afric...

5 Chapter 4Figure 4.1. Acquisition principles of seismic reflection and refraction. The res...Figure 4.2. Common mid-points (CMP) acquisition. Each shot is recorded by the 12...Figure 4.3. Noises related to seismic waves behavior. a) The seafloor multiple r...Figure 4.4. Principle of normal move-out (NMO) correction before stacking. a) CM...Figure 4.5. Effect of migration at constant velocity (water velocity, 1500 m/sec...Figure 4.6. Example of seismic facies description. The red arrows highlight the ...Figure 4.7a. Seismic record (top panel), picks, computed arrival times (middle p...Figure 4.7b. Same display for a layered forward model (North-Eastern Gulf of Ade...Figure 4.8. Example of OBS data, picks and results along a same South China Sea ...Figure 4.9. Gravity anomaly for two small cylinders at 2 and 6 km depth. Each cy...Figure 4.10. Example of gravity modeling in the Colorado Basin, Atlantic Argenti...Figure 4.11. Free-air gravity anomaly map of the conjugated Australia-Antarctica...Figure 4.12. Magnetic anomaly map from the EMAG2 grid model for the conjugated A...Figure 4.13. Sketches of the two end-member rifted margins: magma-rich rifted ma...Figure 4.14. Seismic reflection profile GA228-24 through the transition between ...Figure 4.15. Seismic reflection profile GA229-22 in oceanic crust without (top) ...Figure 4.16. Seismic reflection profile GA228-10 through seaward dipping reflect...Figure 4.17. Deep structure of the Argentinian (top) and Newfounland (bottom) co...Figure 4.18. Seismic reflection profile GA199-09 through the proximal margin wit...Figure 4.19. Seismic reflection profile GA228-24 through the zone of exhumed man...Figure 4.20. Example of methods complementarity along the Mirbat segment in the ...

6 Chapter 5Figure 5.1. General workflow of numerical modeling of rifting. For the numerical...Figure 5.2. Modes of deformations in rifts (a) The three rifting phases of the 1...Figure 5.3. Eulerian and Lagrangian frameworks. In the Lagrangian framework, the...Figure 5.4. Conservation equations and rheology model. The momentum equation (eq...Figure 5.5. a) Typical initial strength and temperature profiles used in geodyna...Figure 5.6. Effect of changing the initial weak seed used to focus the deformati...Figure 5.7. a) Force balance during fault slip. The force required for a fault t...Figure 5.8. Effect of lithospheric strength on final margin and sedimentary arch...Figure 5.9. Controls on normal fault growth during rifting. a) Effect of lithosp...Figure 5.10. Onset of melting and serpentinization. Results for the onset of mel...Figure 5.11. Impacts of surface processes on pressure and strain localization. S...

7 Chapter 6Figure 6.1. Schematic section-view examples of normal-gravity experimental setup...Figure 6.2. Experimental monitoring techniques. a) Top- and side-view photograph...Figure 6.3. Schematic examples of upper crustal scale models to study normal fau...Figure 6.4. Schematic examples of parameters affecting brittle-viscous experimen...Figure 6.5. Schematic examples of lithospheric-scale rift model results as a fun...Figure 6.6. Schematic map view examples of fault patterns related to different e...Figure 6.7. Schematic examples of modeled rift interaction between right-steppin...Figure 6.8. Schematic examples of rift development and propagation under differe...