The Cretaceous Alkaline Dyke Swarm in the Central Segment of the Asunción Rift, Eastern Paraguay: Its Regional Distribution, Mechanism of Emplacement, and Tectonic Significance

Figure 10

Schematic map showing the main larger deformation areas that occurred during the phase of continental breakup. Dashed black arrows: larger dextral shear zone (LDSZ), Gastre fault system (GFS), and central African sinestral shear zone (CASZ). Yellow arrows indicate the plate motion according to Fairhead and Wilson [65]. Note that the Asunción Rift is closely related to the LDSZ. Copyrights of the map for National Geophysical Data Center.