Fault-Related Controls on Upward Hydrothermal Flow: An Integrated Geological Study of the Têt Fault System, Eastern Pyrénées (France)

Figure 6

Relation between hot springs, the Têt fault segmentation, and relief. (a) Location of the main mountain ranges associated with the Têt fault segmentation (white line) and subsidiary faults (yellow line). Principal hot spring sites are indicated. (b) Altitude map including the principal ranges, the Têt and Py faults (black lines), and hot springs with temperatures (colored circles). Springs are at the bottom of high reliefs. The Carança and Puigmal Ranges, concentrating most of the hot springs with the highest temperatures, form a wide area of elevated altitudes compared with the Canigou Range. Numbered profiles used for measurements in (c) are indicated (white lines). (c) Graph along the Têt fault (E-W) of hot spring temperatures (blue circle, right axe), scarp relief (green curve, left axe), and average of normalized altitudes integrated to the range wide (red curve, left axe), calculated from topographic profile (e.g., the A-B cross-section indicated as bold white line in (b)). Profile 1 and profile 21, identified in (b), mark, respectively, the origin and the end of -axis in (c). The highest number of springs and temperature maxima correspond to the largest scarp relief and average of altitudes.

(a)

(b)

(c)