Fluid Dynamics in a Thrust Fault Inferred from Petrology and Geochemistry of Calcite Veins: An Example from the Southern Pyrenees

Figure 6

Spatial distribution and crosscutting relationships between veins developed within the studied thrust zone. Vein density increases towards the fault plane. In the footwall, three vein systems (F1, F2, and F3) (a, b, and c, respectively) evolve to randomly oriented veins (d) on approaching the fault core (e). In the hanging wall, only randomly oriented veins are observed, being more chaotic towards the fault plane (f). The yellow circle refers to sample location.