STRATIGRAPHY OF DOROUD AND ROUTEH FORMATIONS SEDIMENTS IN SOUTH URMIAAli Asghar Siab Ghodsi and Ehsan Babazadeh
The study area is located in the center of west Azerbaijan province, south of Urmia city, Urmia Oshnavieh road, near the village of Barouzh. Permian deposits have extensive out crops especially in Alborz-Azerbaijan. In this zone, two strati form units, Doroud (at the bottom) and Routeh (above) is representative of Permian sequences. These formations are each only a complete sedimentary cycle that is placed between two erosional levels. In the study area, thickness of Doroud formation is about 158 m and consists of sandstones mainly brown quartz. Doroud formation is covered by isocline unconformityof Routeh formation. In this area, Routeh formation has more exposures and includes: limestone, dolomitic limestone and frequency of shale and limestone with thickness about 200 meters from bottom to the top. Border of Doroud and Routeh formations indicates the occurrence of a tectonic phase. Results of water samples analysis taken from the region obviously demonstrate that water quality in the area placed in appropriate range according to the WHO standards.
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