Continental Rifted Margins 1. Gwenn Peron-Pinvidic

in the South Atlantic plate...Figure 1.8. Illustration of the “wide rift mode”Figure 1.9. Topographic map of the Basin and Range Province. Elevation and bathy...Figure 1.10. Illustration of the intracratonic rift basin caseFigure 1.11. a) Topographic map of central Africa showing the outline of the mai...Figure 1.12. Illustration of the back arc, forearc and trench basins related to ...Figure 1.13. Illustration of the pure shear and simple shear deformation mechani...Figure 1.14. Illustration of the three ideal Andersonian fault types. S refers t...Figure 1.15. Illustration of normal faults: a) cartoon illustrating the fault co...Figure 1.16a. Conceptual model of the development of normal fault systems. The i...Figure 1.16b. The constant length fault model, another commonly used modeling ty...Figure 1.17. Schematic illustration of the formation of a low-angle fault (LANF)...Figure 1.18. Illustration of the elongation, stretching and thinning factorsFigure 1.19a. Diagram illustrating a detachment fault accommodating displacement...Figure 1.19b. Photo showing a field example of the Nordfjord-Sogn detachment zon...Figure 1.19c. Extract from a seismic reflection profile in the mid-Norwegian rif...Figure 1.20. Illustration of a shear zone: a) diagram illustrating the concentra...Figure 1.21. Illustration of a metamorphic core complexFigure 1.22. Schematic illustration of the evolution of low-angle normal faults ...Figure 1.23. a) Illustration of a schematic boudinage structure; b) field exampl...Figure 1.24. a) Illustration of the main fold geometries; b) field example photo...Figure 1.25. Diagram illustrating the structural geometries of a graben, horst a...Figure 1.26. Diagram illustrating the main structural geometries associated with...Figure 1.27. Illustration of the possible complex geometries developed during ex...Figure 1.28. Tectonic subsidence curves for various types of basins around the w...Figure 1.29. Schematic representation of the definitions of sedimentary subdivis...Figure 1.30. Schematic diagrams summarizing the major structural and stratigraph...Figure 1.31. Series of block diagrams illustrating the tectono-sedimentary evolu...Figure 1.32. Evaporite deposition at different stages of rifting, shown just pri...Figure 1.33. Styles and features of rift-related salt tectonics: a) thick-skinne...Figure 1.34. Improvement of seismic imaging, especially in the subsalt domain (e...Figure 1.35a. Summary of the main geometries related to magmatic activity encoun...Figure 1.35b. Seismic facies chart, morphometric data and interpretation of the ...

      3 Chapter 2Figure 2.1. An early “text book”-style illustration of a rifted margin, standard...Figure 2.2. Series of global plate reconstructions selected as a representative ...Figure 2.3. Location map showing the extent of the Storegga slide (red polygon)....Figure 2.4. Diagram illustrating the morphology of offshore rifted margins based...Figure 2.5. Illustration of the coastal legal zones, including the territorial s...Figure 2.6. Sketches defining rift obliquity. Continental margins with an obliqu...Figure 2.7. Worldwide map with rifts and rifted margin segments color-coded base...Figure 2.8. Worldwide examples: in the left column, the present-day location and...Figure 2.9. Schematic representation of theoretical end-member categories of rif...Figure 2.10. Outlines (in pink) of the main LIPs (Large Igneous Provinces) on a ...Figure 2.11. Illustration of the magma-poor (top) versus magmatic (bottom) break...Figure 2.12. Offshore total sediment thickness mapFigure 2.13a. Ilustration of a sediment-rich rifted margin, based on examples fr...Figure 2.13b. Ilustration of a sediment-starved rifted margin, based on examples...Figure 2.14. Schematic representation of the key elements constituting a rifted ...Figure 2.15. Illustration of the McKenzie rift model (McKenzie 1978): the lithos...Figure 2.16. Illustration of the Wernicke rift model (Wernicke 1985). Similarly ...Figure 2.17. Detachment fault (DF) model for continental passive margins showing...Figure 2.18. Five extension models using the concept of detachments. a) Lithosph...Figure 2.19. Conceptual lithosphere-scale model of development of a rifted magma...Figure 2.20. Modes of extension leading to continental break-up. Left column: co...Figure 2.21. Illustration of shear deformation based on seismic reflection profi...Figure 2.22. Illustration of the variety of structures produced by polyphase fau...Figure 2.23. Illustration of the sequential faulting model based on the Iberia–N...Figure 2.24. Unroofing of the symmetric expanse of mantle by successive asymmetr...Figure 2.25a. Evolution of finite strain and active deformation. Detailed evolut...Figure 2.25b. Comparison of the modeled and observed key structural features. a)...Figure 2.26. Schematic representation of the structural setting of an idealized ...Figure 2.27. Left column: numerical simulations with active deformation (strain-...Figure 2.28a. Schematic cartoon of the numerical simulations shown in Figure 2.2...Figure 2.28b. Cartoon illustrating the proposed exhumation detachment factory mo...Figure 2.28c. Close-up of the rift axis on the numerical simulation at the 73 My...Figure 2.29. Schematic cartoon summarizing the major structural and stratigraphi...Figure 2.30. Table summarizing the deformation modes interpreted to structure ri...Figure 2.31a. Cross-section illustrating the regional structural context of the ...Figure 2.31b. Simplified structural map of SW Norway. The onshore red lines outl...Figure 2.31c. Seismic reflection profiles from the Trøndelag Platform and North ...Figure 2.32. Cartoon showing different simplified coupling scenarios based on ob...Figure 2.33. Illustration of the potential fits and misfits between the structur...Figure 2.34. Schematic representation of the structural setting of an idealized ...Figure 2.35. Models for crustal accretion at ocean ridges. a) Classic interpreta...Figure 2.36. Schematic representation of a slow-spreading ridge segment, showing...Figure 2.37a. Schematic model of rifting evolution illustrating the formation of...Figure 2.37b. Left: bathymetric map of the North Atlantic Ocean with mapping (ba...Figure 2.38. Conceptual model for plume-related microcontinent formation. a) Fra...Figure 2.39. Block diagram illustrating the lateral change of the structural rol...Figure 2.40. Cartoon summarizing the updated structural and stratigraphic charac...Figure 2.41. Schematic representation of the structural crustal evolution from a...Figure 2.42. Geologic model showing the temporal evolution of the distal margin,...Figure