Directional statistics of lineaments; A Trial at the shear zone in southern Kyushu

Shimada, Koji   ; Goto, Akira; Sasaki, Akimichi*; Terusawa, Shuji*; Komatsu, Tetsuya  

We tried an objective expression of directional distribution of lineaments utilizing the directional statistics for the high interpretability. Directional statistics of lineaments at the shear zone in southern Kyushu indicate that the length weighted directional distribution of lineaments are decomposed into five von Mises distributions. An objective extraction of the East-West lineament concentration ereas was concordant with qualitative understanding by means of rule of thumb, judgement at a glance or rose-diagram.