Abstract
A new outcrop of the Atotsugawa fault, which is one of the major active faults in central Japan, was observed along the Atotsu River, tributary of the Takahara River. In this outcrop, the total of about 50m wide fractured fault zone, ENE-WSW-striking slicken planes were observed. The slickenlines indicate dextral wrenching of the Atotsugawa fault but the vertical displacement slightly exceeds, with uplifting the southern side of the fault. This result almost same as the previous studies on the other outcrops, showing the continuous distribution of the fault trace with local branching or stepping.
