نتایج جستجو برای: bardeskan
تعداد نتایج: 7 فیلتر نتایج به سال:
منطقه مورد مطالعه در فاصله 49 کیلومتری شمال غرب شهرستان کاشمر(شمال بردسکن) در استان خراسان رضوی در زون تکنار واقع شده است.دمای همگن شدن سیالات دوفازی بین 200 تا 330 درجه سانتیگراد و شوری محاسبه شده بین 8 تا 22 درصد وزنی معادل naclبدست آمده و شوری سیالات سه فازی 37 درصد وزنی معادل nacl است. با استفاده از نمودار هاس (1971) عمق کانی سازی، تقریبا 1000 متر زیر سطح آب های زیر زمینی قدیمی تخمین زده شد...
about 50 Km northwest of Bardeskan, Eocene volcanic and volcano sedimentary rocks of magmatic belt of north central Iran structural zone are host of Abri copper deposit. Volcanic rocks dominantly have andesitic, basalt and andesitic basalt composition, and manifested such as submarine lava flows, brecciated lavas in the present of water (agglomerate), or ash and fragmented volcanic rocks (tuffi...
Copper smelting slags are hard materials. Therefore,to recover their copper by flotation method, grinding should be carried out to obtain optimal particle size. Copper smelting slags in the Bardeskan district, with work index of 16.24 kwh/st, were grinded for 65 minutes to reach an acceptable degree of freedom for the flotation tests, with particle size of 80%, smaller than 70 μm. With this gri...
copper smelting slags are hard materials. therefore,to recover their copper by flotation method, grinding should be carried out to obtain optimal particle size. copper smelting slags in the bardeskan district, with work index of 16.24 kwh/st, were grinded for 65 minutes to reach an acceptable degree of freedom for the flotation tests, with particle size of 80%, smaller than 70 μm. with this gri...
Background and objectives: Rangelands, in addition to their very important role in the sustainability of natural ecosystems, due to having a variety of medicinal-industrial plants, play an important role in meeting the medicinal and economic needs of the country. Creating suitable investment opportunities for more production of these plants is important and it is necessary to conduct extensive ...
introduction the study area is located in central part of the khaf- kashmar-bardeskan belt which is volcano-plutonic belt at the north of the dorouneh fault in the north of lut block. the north of the lut block is affected by tectonic rotation and subduction processes which occur in the east of iran (tirrul et al., 1983). the magmatism of lut block begins in jurassic and continues in tertiary (...
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