بررسي تغييرات ژئوشيميايي و جرم واحدهاي مختلف در كانسار بوكسيت سرفارياب، استان كهگيلويه و بويراحمد با استفاده از رفتار شيميايي عناصر Y,Zr,Ti و AI

Geochemical and Mass Changes at the Sar-Faryab Bauxite Deposit,Kohgeloye and Bovair-Ahmad Province: Using Al, Ti, Zr and Y Geochemical Characteristics

The Sar-Faryab bauxite deposit is located in 250 km east of Ahvaz city in Kohgeloye and Bovair-Ahmad Province, Iran. Structurally the deposit is located in the Zagros Simply Fold Mountain Belt and was formed between the Ilam and Sarvak Formations. The bauxite horizon in this deposit consists of marly limestone, argillite, oolitic- Pisolitic, yellow, red and white bauxite. This study uses the geochemistry of immobile elements (Al, Ti, Zr and Y) to trace the precursor rock of the bauxite deposit and to calculate the mass changes that took place during weathering and bauxitization. The result indicates that Si,Ca,Mg,K,Na elements are depleted and Al,Fe,Ti elements are enriched during the weathering and bauxitization. Geochemical data show that argillaceous debris in the Sarvak limestone can be the source of the Sar-Faryab bauxite deposit.