Immobile elements and mass changes geochemistry at Sar-Faryab bauxite deposit,Zagros Mountains,Iran |
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| Authors: | A Zarasvandi H Zamanian E Hejazi |
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| Institution: | 1. Department of Geology, Shahid Chamran University, Ahvaz, Iran;2. Department of Geology, Lorestan University, Khoramabad, Iran |
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| Abstract: | The Sar-Faryab bauxite deposit is located in 250 km east of Ahvaz city in southwestern Iran. Structurally the deposit located in the Zagros Simply Folded Mountain Belt. Outcrops of the bauxite horizons in the area are distributed irregularly over an area of about 20 km2 but have fairly uniform thickness averaging 1 to 1.5 m. The Sar-Faryab bauxite is situated in NW–SE trending Mandan anticline and occurs in karst horizons near or at the boundary between the Sarvak and Ilam Formations. Based on field observation, mineralogy and stratigraphy an unconformity during Cenomanian–Turonian times has exposed the Sarvak Limestone to karst weathering and the layers of Marly Limestone, Argillite, Oolitic–Pisolitic, Yellow, Red and White Bauxite were formed and accumulated in the karstic areas. |
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| Keywords: | Karst bauxites Mass change Authigenic Zagros Mountain Belt Iran |
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