MECHANISM OF AEOLIAN SANDS MOVEMENT IN EAST OF ISFAHAN AREA

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AJAL LOUEIAN R.; PAKZAD H.R.

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Journal: RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE" Year:2001 | Volume:15 | Issue:1-2 Page(s): 53-70

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Title

MECHANISM OF AEOLIAN SANDS MOVEMENT IN EAST OF ISFAHAN AREA

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AJAL LOUEIAN R. | PAKZAD H.R. | Issue Writer Certificate

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Abstract

Study area, as an intermountain basin, is well developed parallel to the southwestern boundary of the Urumieh Dokhtar magmatic assemblage and northeastern margin of the Zagros orogenic belt in central Iran to the southeast of Isfahan city. It is surrounded by mountains, which are composed of Eocene volcanic rocks in the east and northeast, Jurassic and Cretaceous sedimentary rocks to south and west. Land surface ranges with a maximum height of 3330 m above the sea level in the northern mountains and a minmum of 1470 m in the gavkhoni playa Lake. The most important sedimentary environments of this area are Gavkhoni playa Lake, Varzane aeolian sand fills, alluvial and lacustrine deposits.The Vazaneh continental aeolian sand field is located to the west of the Gavkhoni playa lake and covers an area of approximately 140 km2. the height and volume of the aeolian sands in the northern part of the aeolian sands is more than in the southern part. The various important form of aeolian sand dune including sief, barchan, barchaniod, atar, dikaka, and sand sheet consist of interdune, overbank and sabkha are present in this aeolian sand field. Mineralogical investigations suggestthat the first major source of the Varzaneh aeolian sand field belongs to sedimentary rocks located in the south, southwest and northwest of this landform. The second major one belongs to igneous rocks exposed in the east and the northeast of the aeolian sand field and the third one (minor source) belongs to metamorphic rocks exposed mostly at the beginning of the drainage basin. According to abundant aeolian sands in the north, mineralogical composition variation, dominant wind direction, and special forms of some sand dunes the most concentration of water-laid sediment, deposited by Zayandehrud river in the north of the aeolian sands, is as the main origin of the aeolian sands.

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APA: Copy

AJAL LOUEIAN, R., & PAKZAD, H.R.. (2001). MECHANISM OF AEOLIAN SANDS MOVEMENT IN EAST OF ISFAHAN AREA. RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE", 15(1-2), 53-70. SID. https://sid.ir/paper/55877/en

Vancouver: Copy

AJAL LOUEIAN R., PAKZAD H.R.. MECHANISM OF AEOLIAN SANDS MOVEMENT IN EAST OF ISFAHAN AREA. RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE"[Internet]. 2001;15(1-2):53-70. Available from: https://sid.ir/paper/55877/en

IEEE: Copy

R. AJAL LOUEIAN, and H.R. PAKZAD, “MECHANISM OF AEOLIAN SANDS MOVEMENT IN EAST OF ISFAHAN AREA,” RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE", vol. 15, no. 1-2, pp. 53–70, 2001, [Online]. Available: https://sid.ir/paper/55877/en

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