نتایج جستجو برای: urumieh dokhtar

تعداد نتایج: 163  

Journal: :زمین شناسی اقتصادی 0
رضوان مهوری موسی نقره ئیان مرتضی شریفی محمد علی مکی زاده سیدحسن طباطبایی قدرت ترابی

introduction the nabar area that is a part of the urumieh- dokhtar volcano- plutonic belt is located in the south of kashan. research works such as emami (emami, 1993) and abbasi (abbasi, 2012) have been done about the geology of this area. rock units in the study area contain middle- upper eocene intermediate to acidic lavas and pyroclastic rocks, green marl, shale and sandy marls of oligo- mi...

Journal: :زمین شناسی اقتصادی 0
رضا زارعی سهامیه سارا ابراهیمی

introduction the study area is a small part of the urumieh-dokhtar structural zone in the markazi province, located in the northeastern part of the farmahin, north of arak (hajian, 1970). the volcanic rocks studied from the area include andesite, dacite, rhyodacite, ignimbrite and tuff of middle to late eocene age (middle lutetian to upper lutetian) (ameri et al., 2009). it seems that folding a...

Journal: :زمین شناسی اقتصادی 0
محمد معانی جو رحیمه سالمی

introduction there is an iron mining complex called shahrak 60 km east of takab town, nw iran. the exploration in the shahrak deposit (general name for all iron deposits of the area) started in 1992 by foolad saba noor co. and continued in several periods until 2008. the shahrak deposit comprising 10 ore deposits including korkora-1, korkora-2, shahrak-1, shahrak-2, shahrak-3, cheshmeh, golezar...

Journal: :زمین شناسی اقتصادی 0

introduction mineral composition is sensitive to variations in the composition of the magma and can be used to characterize the physical conditions of crystallization such as temperature, pressure, oxygen fugacity and water content. the studies have demonstrated that geobarometery by amphibole provides a tool for determining the depth of crystallization and knowledge of the depth of crystalliza...

ژورنال: :پژوهش های دانش زمین 0
فاطمه سرجوقیان دانشگاه کردستان علی کنعانیان دانشگاه تهران

منطقه قوشچی‏‎ٌ در شمال غرب ایران شامل طیف وسیع سنگ شناسی از گابرودیوریت تا آلکالی گرانیت است که در بخش هایی در هم نفوذ کرده و حجم های مختلفی از آنکلاوهای مافیک را شکل داده و یا در برخی موقعیت ها با هم ادغام شده و سنگ حدواسط را تشکیل داده است. آنکلاوهای موجود با ترکیب سنگ شناسی گابرودیوریت دانه ریز بوده، به طوری که با نزدیک شدن به حاشیه آنکلاو ریز دانه تر شده و براثر تجمع کانی های مافیک در حاشیه ...

Journal: :هنرهای تجسمی 0
لیلا خسروی استادیار گروه تاریخی پژوهشکده باستان شناسی، پژوهشگاه میراث فرهنگی و گردشگری کشور، تهران، ایران.

the hoard of kalmakarreh includes hundreds of golden and silver wares that were incidentally discovered by a local hunter in 1987 at a northwest 20 kilometer distance to pol-e dokhtar in province of lorestan. the collection includes a variety of dishes, raytheon, human and animal sculptures, masks, plaques, jewelry,… that belongs to the neo- elamite (first millennium bc). this research led to t...

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 Extended  Abstract Cold and frost is one of the most important climatic parameters in the agricultural climate, and the damage caused by them reduces the possibility of producing many agricultural and horticultural products in vulnerable areas. Cold and frost is one of the climatic hazards that annually causes damage to various activities. The agricultural sector is the most important part of...

Journal: :زمین شناسی اقتصادی 0
حجت اله صفری بهنام شفیعی بافتی حسن محمدرضایی

introduction the sar cheshmeh copper deposit and indications of other deposits are located in the dehaj-sarduieh belt in the kerman region (khadem and nedimovic, 1973). this belt is one of the most important provinces of cu mineralization in iran, with approximately 300 cu deposits and prospects, includingtwenty of the porphyry copper type (ghorbani, 2013). this belt, 300 km in length and 30–45...

Journal: :زمین شناسی اقتصادی 0
سید ابوالفضل عزتی سید رضا مهرنیا کیمیا سادات عجایبی

introduction the ramand area, southwest of buin- zahra, about 60 kilometers from qazvin, lies in the igneous belt of the urmieh-dokhtar region, the main structural zone of north-central iran. rhyodacite and rhyolite lava flows are the principal host rocks of mineralization and alteration of the area, most of which occurs in faulted and brecciated zones alongmaj or northwest-trending fault syste...

Determination of flood-prone areas using Sentinel-1 Radar images (Case study: Flood on March 2019, Kashkan River, Lorestan Province) Introduction Although natural hazards occur in all parts of the world, their incidence is higher in Asia than in any other part of the world. Natural phenomena are considered as natural hazards when they cause damage or financial losses to human beings. Iran ...

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