Applications of SEM-EDAX method in study of Baba-Ali & Galali iron ore, west of Hamedan
محل انتشار: دوفصلنامه زمین شناسی ژئوتکنیک، دوره: 5، شماره: 1
سال انتشار: 1388
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 165
فایل این مقاله در 16 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JGEO-5-1_003
تاریخ نمایه سازی: 30 آبان 1400
چکیده مقاله:
Baba-Ali and Galali iron deposits are located west of Hamadan, within the Sanandaj-Sirjan geo-structural zone. Mineralogy and crystal-chemistry of the ore bodies using ۵۷ analyses on the magnetite iron ore by SEM-EDAX method lead to some interesting results. Detecting the concentration of some trace elements such as V, Co, Ni, Cu, Cr, Ti, Au, PGE (Platinum Group Elements) and some impurities of S and P in the ore bodies indicates that only primary pyrites have concentrations of Pt. Other generations of pyrite and magnetite are depleted in these trace elements. The late stage of hydrothermal fluids that leads to mineralization of pyrite in calcite-quartz veins is important for Au mineralization and therefore pyrite is the best carrier for Au. Detection of abundant phlogopite crystals and trace element concentration patterns in the Galali iron ore has strengthened the acceptance of volcanogenic magnesium skarn type hypothesis.
کلیدواژه ها:
نویسندگان
Godratollah Rostami Paydar
Department of Geology, Faculty of Basic Sciences, Sciences & Research Branch, Islamic Azad University, Tehran, Iran
Mohammad Lotfi
Department of Geology, Islamic Azad University - North Tehran Branch, Tehran, Iran
Majid Ghaderi
Department of Economic Geology, Tarbiat Modares University, Tehran, Iran
Mansor Vossoughi-Abedini
Faculty of Earth Science, Shahid Beheshti University, Tehran, Iran
Azadeh Amiri
Department of Geography, Islamic Azad University - Ahvaz Branch, Ahvaz, Iran