Classification and Determination of Erodibility Indices of East Azarbaijan Province Marls

Considering the significant expansion in scope units Marly catchments in East Azarbaijan province one hand and the occurrence of various anomalies of natural talent, including soil erosion, types of rill erosion (Rill- Gully) sedimentation high and on the other hand, from the viewpoint Marl comprehensive understanding of mechanical, Mineralogy and chemical that ultimately addresses the erosion indicators Marls will lead, something is necessary and essential. In this project assuming that forms between the intensity of erosion with Marl phisicochemical characteristics and are closely mechanical. At the first prepared digital geological map and stratigraphy then Marl area were worked out with regard to geological formation. Based on these three units, including marl Eocene, marl Miocene and Cretaceous marl .Climate map was determined three class including cold dry, cold moisture and cold Mediterranean using Dumarten method. Slope map was prepared in 5 classes. Then these maps crossed together by GIS system. At the least final marl units were prepared. Then take samples from marl area and chemical analysis there. With use statistically methods determined the classification and erosion indices type of erosion. Using artificial rain measured rate sedimentation Marl. Amount of potassium, TNV and topographic slope showed significant difference at the probability level (0.05-0.09) in erosion classes.Correlation coefficient topographic slope with runoff, carbonate, percentage saturation (SP), total hardness and neutral material,was determined respectively equal to 479 /, 424 /, 571 / -, 518 / - and 386. Correlation coefficient between K Vyshmayr with silt, clay and clay index compared with the 844 /, 467 / -, and 582. XRD results of tests on the clay Marl units showed that Marl Miocene with montmorilonit dominant clay, Marn Eocene with montmorilonit, and Marl Cretaceous, Illit dominant.