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Paper Information

Journal:   PHYSICAL GEOGRAPHY RESEARCH QUARTERLY   WINTER 2014 , Volume 45 , Number 4; Page(s) 1 To 3.
 
Paper: 

DETERMINATION OF HOLOCENE MORPHOCLIMATIC REGIONS IN HIGHLANDS OF THE WEST AND NORTHWEST OF KURDISTAN PROVINCE

 
 
Author(s):  YAMANI MOJTABA*, MOGHIMI EBRAHIM, AZIZI GHASEM, BAKHISHI KAVEH
 
* FACULTY OF GEOGRAPHY, UNIVERSITY OF TEHRAN
 
Abstract: 

Introduction: Temperature and its changes are considered as an important factor in the physical weathering of rocks. The maximum influence of temperature is frost action and thermal expansion. The effect of temperature on the degradation of rocks, moreover temperature range, depends on the strength of rocks. During freezing, water in cracks and fissures of rocks is increased 8 to 11 percent in volume and this has a force of about 2000 pounds per square inch. The continued practice of freeze and thaw can cause small fissures, cracks and separation. The result of this process is formation of the Talus and debris cones (Blyth and Freitas 2005). Evidence of glacial geomorphology is one of the most visible legacies of the Quaternary period Climate change (Mahmoudi 1988). One of the most important legacies of Pleistocene climate in the highlands of the Iran, especially in the Alborz Mountains, West and North West of Iran is the dominance of the glaciers and related landforms (Yamani 2002).

 
Keyword(s): GLACIER, HOLOCENE, KURDISTAN, MORPHOCLIMATIC, PELTIER MODEL, QUATERNARY, WURM
 
References: 
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