نتایج جستجو برای: ore mineral

تعداد نتایج: 75576  

Journal: :Proceedings of the National Academy of Sciences of Belarus, Chemical Series 2019

جعفری, محمد , شفیعی, بهنام , شمعانیان, غلامحسین , عظیم محسنی, مجید, نوری اصل, فرزانه ,

The Argash antimony ore deposit is located at south of Neyshabour and the eastern part of the Sabzevar zone. This deposit occurs within a sequence of Eocene-Oligocene volcanic-intrusion rocks. The mineralization occurs as open space filling, taking place as irregular veins, veinlets and hydrothermal breccias. The mineralogy of the veins is comparatively simple. The primary antimony-bearing mine...

Due to economical and environmental issues, utilization of mineral wastes, e.g. iron ore mine tailing (IOMT), as road materials can be recommended as a sustainable alternative. In the present study, mechanical properties, as well as resistance to freezing and thawing cycles (F-T) of low plasticity clay soil stabilized with different percentages of Portland cement (0, 6, 9, 12 and 15%) and diffe...

آلیانی, فرهاد, موکه, آرنو, میری, میرمحمد, یونسی, رضا ,

The ore bodies of Galali and Baba-Ali are two relatively important iron ore deposits in west Iran.  These ore deposits are situated in the Sanandaj-Sirjan zone. The deposits are associated with ultramafic, calc-alkaline, carbonatite and other rocks. Macroscopic observations, on the boreholes, show that one of the rare ultramafic rocks (hornblendite) appears in all various horizons parallel to m...

ادابی, محمد حسین,

Geochemical variations of the Pro terozoic dolomite samples close to the ore deposits in the Renison mine area, Tasmania, Austra lia. arc the result of alteration. The oxygen tsotope va lues of the most altered dolomites surrounding the orc deposit indicates that these arc affected oy hot (up to abou t 350°C) hydro thermal nuids. There is a trend of decreasing lighter oxygen and carbon is...

Journal: :DEStech Transactions on Engineering and Technology Research 2019

ژورنال: Journal of Railway Research 2018
Chandra Saha, Jitesh,

To serve Indian economy railways carry different category of freight traffics like coal, iron ore, food grains, steel, fertilizer and mineral oil, etc. Dispersal of some of these freights is limited compared to other traffics which ambit of outreach is quite large. Food grains and fertilizers are such freights which reach wider section of population, transporting thereby railways carry off its ...

2004
S. Bradshaw D. Jones L. Groves S. Kingman E. Lester

The mechanical size reduction of solids is an energy intensive and highly inefficient process. Therefore, there is great incentive to improve the efficiency of size reduction and mineral separation processes. Over several decades, this has promoted significant amounts of research,unfortunately, this has only led to small, incremental improvements in efficiency. One area which has shown signific...

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