بررسي نقش عوامل موثر در پيدايش و تكوين جريانهاي واريزه اي ارتفاعات شمالغرب آذربايجان (جنوب غرب هاديشهر و دره ديز)

The Role of Major Factors upon the Generation and Evolution of Debris Flows in South-western Range of Hadishahr - Dare Deez (North -West of Azarbaeejan)

Deevan Daghi-Daredeez ranges are predominantly-comprised of sedimentary rocks including dolomites, shale; and marl (90%). The severe impact of tectonic forces especially on resistible and fragile formations has led to great expanses of crumbled and demolished area through creation of both major and minor faults. New tectonic activities and prevalence of pre glacial erosion system namely over 1700 meter high through collapse of scarps, resulted in very typical, protracted and individual debris flows in the region. Debris flows are more pronounced in scarps resulted from active faults, and side carving of drainages. Occasionally, their continual movement might block transit Marand-Jolfa railroad. Debris flows basically have individual nature, and are usually displaced through human activities. Linear correlation and regression analysis were applied in order to determine both direction and intensity of the relationship. According to the finding of this study, there exists high correlation between debris flows and the above mentioned factors. Furthermore, some controlling measures were proposed to reduce their movement.