Geothermal Fluid Variation Recorded by Banded Ca-Carbonate Veins in a Fault-Related, Fissure Ridge-Type Travertine Depositional System (Iano, southern Tuscany, Italy)

Figure 6

(a) Aerial photograph indicating the travertine deposit, the location of fissure ridge and gas emission, and collected samples; the orientation of the banded Ca-carbonate veins is also indicated in the rose diagram, (b) Fissure ridge made up of a central fracture completely filled by banded Ca-carbonate veins, showing the locations of samples PAM13 and IA1. (c) Schematic reconstruction of the travertine fissure ridge with the location of the collected samples.