نتایج جستجو برای: magnetite ore

تعداد نتایج: 15166  

Journal: :Journal of Materials Science 2021

Gold-associated pathfinder minerals have been investigated by identifying host of Au for samples collected from an artisanal mining site near a potential gold mine (Kubi Gold Project) in Dunkwa-On-Offin the central region Ghana. We find that each composition powder (impure) and residual black hematite/magnetite sand remains after panning, there is unique set associated diverse indicator mineral...

Journal: :فیزیک زمین و فضا 0
محمدرضا حیدریان شهری دانشگاه فردوسی مشهد- دانشیار محمدحسن کریم پور دانشگاه فردوسی مشهد- استاد آزاده ملک زاده دانشگاه فردوسی مشهد- دانشجوی دکتری

hired is a large gold prospecting area which is located in south khorasan province, in the east of iran. gold mineralization is found in 4 target areas covering about 24 km2. the host rocks are mainly tertiary volcanics, some jurassic and cretaceous sediments. sub-volcanic rocks are of magnetite series (gabbros to diorite) and ilmenite series (granite-granodiorite-monzonite) which have intruded...

2014
Hazim Hrvatović

In this study two small, but genetically related iron carbonate deposits Mačje Jame and Vranjski Potok, south west of Busovača (MBSM), located in the pre-Devonian metamorphic complex were investigated in detail. Analyses of the main chemical components, trace elements, REE, isotope composition of C, O, S, 87Sr/86Sr ratio of rhyolite, plot of REE normalized to CI chondrites and a microscopic stu...

حسین‌زاده, محمدرضا , عامل, نصیر , عظیم‌زاده, امیرمرتضی , قربانی, مهسا , مؤید, محسن ,

The Mafic complex of Mishow is exposed in the north-western part of Iran, in the East Azerbaidjan Province (SW of Marand). Two different types of mineralization, sulphides and oxides, occur in the intrusion complex. The sulphide ore bodies are mainly composed of pyrrhotite accompanied by chalcopyrite, pentlandite, sphalerite, pyrite and troilite. The oxides mineralization consists of ilmenite a...

ژورنال: :پژوهش های دانش زمین 0
زهرا لطفی دانشگاه دامغان علی اکبر حسن نژاد دانشگاه دامغان سید محمود حسینی نژاد دانشگاه دامغان

معدن سنگ آهن تویه دروار در فاصله 45 کیلومتری شمال غرب دامغان، در بخش جنوب خاوری چهار گوش کیاسر قرار دارد.کانه زایی آهن به صورت توده ای همراه با رگه های کلسیت و سیلیس در سنگ های میزبان کربناته با سن تریاس تشکیل شده است. کانه اولیه و اصلی این کانسار مگنتیت بوده است که هماتیت دگرسان شده است. داده های ژئوشیمیایی کانسنگ نشان می دهد عیار آهن از 34 تا 88 درصد وزنی در تغییر است. بررسی-های صحرایی نشان م...

Journal: :Minerals 2021

The Vathi porphyry Cu-Au±Mo deposit is located in the Kilkis ore district, northern Greece. Hydrothermally altered and mineralized samples of latite quartz monzonite are enriched with numerous rare critical metals. present study focuses on bulk geochemistry mineral chemistry pyrite, chalcopyrite, magnetite, titanite. Pyrite chalcopyrite most abundant minerals at related to potassic, propylitic,...

In the southeast of Iran, titaniferous magnetite deposits associated with the gabbro rocks occur in Kahnuj ophiolitic complex. Mineraloghraphy studies have revealed the primary and secondary ore mineral consist of titanomagnetite, ilmenite, hematite, goethite, martite, pyrite, chalcopyrite, pyrrhotite and silicate minerals (plagioclase, pyroxene, hornblende, olivine, alkali feldspar). Trellis-s...

Journal: :Metals 2023

Hydrogen-based direct reduced iron (HyDRI) produced by fluidized bed has great potential for achieving the target of net-zero carbon in steelmaking. However, when magnetite ores were used as feedstock, several process parameters showed influences on its fluidization and reduction behaviors. To confirm dominant influencing factors optimum condition, orthogonal experimental method was conducted p...

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