MEASUREMENTS OF SOIL GAS RADON IN AHWAZ FAULT, IRAN

Ahwaz City is located on Khoozestan Province, a floodplain, almost flat area on the south western margin of Zagros Mountain Range, well known by giant oil fields. Ahwaz Fault is a reverse type with about 100 km length, northwest to southeast direction and a slope towards northeast. Track detector RAD7 is used in order to determine the changes of Radon gas density in Ahwaz Fault district. Measurement of Radon gas was carried out in two sections in order to find the exact location and trend of Ahwaz Fault. First section was located in southeast of Ahwaz City in Mosharrahat district and the second was located in northwest of the City in Hamidieh Road. The mesurement results, show clear increase or pick on Ahwaz Fault. These graphes indicate the exact loction of Ahwaz Fault in northwest and southeast of Ahwaz City.