Investigation on validity of Lineaments extracted by Semi-automated Remote Sensing Techniques; Northwestern part of Sanandaj-Sirjan zone as a case study

For assessment of validity of extracted lineaments by Remote Sensing techniques, these structures compared with other structures which either prepared & proven by field surveying or extracted from available geological maps. Therefore, the Northwestern part of Sanandaj-Sirjan zone, which has structures with different sizes, is selected as a case study. In this research, firstly, the lineaments were extracted by compilation of semi-automate Remote Sensing Techniques. In follow, the surveyed faults were prepared by field investigations and then, the other type of faults were extracted & digitized from available geological maps and finally entered as fracture vector layers in GIS environment. These layers were overlaid by using of GIS capability and then the visional comparison was carried out for investigation and assessment of validity of extracted lineaments by Remote Sensing techniques. The results of this research shown that only main and major extracted lineaments were valid and trustable, whereas, the small lineaments have no this validity, and these outputs will be must check & calibrate by carefully field investigations.