oa Crustal Architecture, Extension, and Tectonostratigraphic Evolution of Rifted Margins in the North Atlantic

In the last five years new high-quality geophysical data has become available which allows a new look at the relationship between crustal structure, subsidence, and gravity anomalies across rifted continental margins. Seven cross-sections of non-volcanic rifted margins in the North Atlantic are described for which seismic data constrains the crustal structure and sediment thicknesses. Five of these are located on the eastern Canadian margins, and the other two lie on conjugates to these, on the western European margin. These transects illuminate some of the key similarities and differences in rift margin structure. These non-volcanic margins provide the clearest available picture of the extension-related components of margin development.