نهشته هاي دامنه اي موروثي پريگلاسيري در كوه گچي قلعه سي و دامنه هاي مجاور آن ، شمال غرب ايران : با تاكيد بر مشاهدات و محيط ديرينه منطقه

Relict Periglacial Slope Deposits in the Gechi Ghal-aʹssi Mountain and its Contigiuous Slopes, Northwest of Iran:Observations and Palaeoenvironmental Implications

Gechi Ghal-aʹssi stock is located on the northern slope of Misho Dagh in East Azerbaijan of Iran. Past geomorphological evaluation of high attitude slope in Gechi Ghat-aʹssi and adjacent slopes, was largely based on hypothetical or macro- scale geomorphic approaches. Consequently, the information pertaining to high altitude Misho -Daghʹs Quaternary slope environments has remained rather rudimentary. The present study describes the morphology of the region and discusses the likely palaeogeomorphic processes of debris deposites on the Gechi Ghal-aʹssi and adjacent north-facing slopes. Shattered bedrock near the summit of Gechi Ghal-aʹssi , is closely associated with several slope landforms such as blocky slope deposits(block fields, block streams and blocky slopes) and talus which grade the downslope. The landforms are primarily related to seasonal frost creep at the Last Glacial Maximum (LGM) when this area have a cold/humid climates, and secondly, are influenced hardly by the slope face and the duration of sunlight radiation. Rock glaciers and mass movements have had important role in transferring deposits to the downslope. At present, the formation of talus, block strips, mud boils and talusy ice core on the slops of study area are resulted from active seasonal frost/melt processes.