نتایج جستجو برای: magnetite ore

تعداد نتایج: 15166  

اعلمی نیا, زهرا, عسکری, علی, فتاحی, شیرین,

The Bozjani copper deposit is located about 30 km west of Fariman city, Khorasan Razavi Province. Host rocks to mineralization are mostly pridotites and basalts of Fariman ophiolitic sequence. Ore body consists of two parts: lower and upper. Lower part has formed a stringer of primary sulfides as stockwork, veinlets, and disseminated. Uppermost part has lenticular shaped dominated by ribbon-lik...

Journal: :Journal of hazardous materials 2009
I Alp H Deveci E Y Yazici T Türk Y H Süngün

Pyrite cinders, which are the waste products of sulphuric acid manufacturing plants, contain hazardous heavy metals with potential environmental risks for disposal. In this study, the potential use of pyrite cinders (PyCs) as iron source in the production of Portland cement clinker was demonstrated at the industrial scale. The chemical and mineralogical analyses of the PyC sample used in this s...

Journal: : 2022

The current version of the Tax Code allows for misinterpretation interpretation term "primary processing mineral resources". In particular, tax authorities believe that primary raw materials includes magnetite concentrate, which in this case is subject to taxation. That is, a number mining and enterprises have faced problem double taxation, threatens significant financial losses. Accordingly, l...

انصاری, عبدالحمید, علمدار, کمال, کوهساری, امیرحسین,

Loco-granite and granodiorite intrusive bodies have cut the Naiband and Sangestan Formations in Darreh-Zerreshk area in southwest margins of Shirkooh batholite. This intrusion has caused weak metamorphism and copper hydrothermal mineralization in permeable Sangestan Formation. The characteristics minerals are magnetite, chalcopyrite, pyrite, bournite and dyajenite. The studied area is composed ...

2002
Robert Cann

Significant magnetite, in the form of dyke-like lodes (Cockfield. 1948). occurs in close spatial relationship to copper deposits such as the Afton mine. The genetic relationship of these massive magnetite lodes to the copper deposits of the Iron Mask is unknown, as i s the origin of the magnetite deposits. However, the proximity of these deposits to magnetite-rich intrusive units of the Iron Ma...

2009
S. J. Clemett D. S. McKay E. K. Gibson

Background and Introduction: The question of the origin of nanophase magnetite in Martian meteorite ALH84001 has been widely debated for nearly a decade. Golden et al. [1] have reported producing nearly chemically pure magnetite from thermal decomposition of chemically impure siderite [(Fe, Mg, Mn)CO3]. This claim is significant for three reasons: first, it has been argued that chemically pure ...

Vertical silos are large cylinders used for material storage in agriculture and mineral industries. One of the silo problems is its obstruction due to dome and dense packing. Depend on the material properties and silo dimensions several techniques are used to solve this problem. In the present work, possibility of obstruction solution of a laboratory silo by ball impact is investigated. Test ma...

Journal: Geopersia 2018

The purpose of this study is to determine geochemical anomalies on lithogeochemical data from Ardestan area, Central Iran, using concentration-number (C-N) fractal modeling and staged factor analysis. Staged factor analysis is used to the recognition of genetic correlation and elimination of non-indicator elements in three steps. Factor scores of elements were calculated and geochemical data cl...

Journal: :Europan journal of science and technology 2022

It is recognized that magmatic activities have occurred along the Izmir Erzincan suture due to closure of Tethyan ocean. In western part Almus (Tokat), which situated around this zone, quartz veins fracture lines are observed in volcanics owing magmatism. There copper enrichments with an average thickness 70 cm volcanic rocks. Mineralization as vein type and epigenetic formation. Paragenesis co...

Ali Asghar Ebrahimi , Hossein Fallahzadeh , Mehdi Mokhtari , Mohammad Hassan Ehrampoush , Mohsen Tarzanan ,

Introduction: In order to achieve sustainable development in mining, waste management is an essential requirement. The current study aimed to examine industrial solid waste produced in Golgohar Mining and Industrial Company, which is a well-known iron ore extraction and processing complex. Materials and Methods: This cross-sectional study was conducted in two phases from March, 2016 through Ma...

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