The result displayed as a countur map that showed in fig. 3.
The data presented by kontur map that showed high anomaly made two strigth lines. The fist, went from Gunung Botak tended west-southwest to east-northeast direction (N 600 E) through Kunjir and the other went from south-southwest to north-northeast (N 80 E) accros the fist line to Bulakan (Fig. 3). That were define as a fault which connected and controled geothermal manifestations.
The faults passes fluid from the geothermal reservoir in depth to the surface. The value of high radon anomalies may be indicate an enlarged permeability where radon is rapidly migrating to the surface before it decay into daugther products. Faults supports gas transportation because it increase the permeability of the rock and assist geothermal fluid stream up to the surface. Furthermore, the fluid from deep sources migrating upward through the fault depends also on other factors including the level of cracking rock and soil capability to absorb water through the rocks. In order to decribe clearly, it displayed on the 3D contur map (fig. 4).
Furthermore, contour map overlayed on the geology map that showed a litle diference fault with geolgy map performed. Budiardjo et. al. performed the suspect fault connected direcly three manifestation in a strigth line, but radon survey result described they connected by two fault. Position of Kunjir manifestation from GPS Garmin’s measurement shifted to south from geology performance (fig. 5).