نتایج جستجو برای: dokhtar

تعداد نتایج: 144  

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...

ژورنال: :پژوهش های دانش زمین 0
مریم قربان کهریزسنگی دانشگاه شهید بهشتی سعید علیرضایی دانشگاه شهید بهشتی هوشنگ اسدی هارونی دانشگاه صنعتی اصفهان

کانسار مس- طلای کالچویه، در 25 کیلومتری شرق شهرستان کوهپایه در استان اصفهان قرار دارد. این ناحیه در بخش جنوب شرقی ورقه 100000/1 کجان و در بخش میانی کمان ماگمایی ارومیه-دختر واقع شده است. داده های دورسنجی بر اساس شناسایی دگرسانی ها، نشانگر چند آنومالی است که برخی با کانی سازی همراه است. کانی سازی در کالچویه در قالب دو رگه کوارتز به همراه کانی های سولفیدی است. رگه اصلی با امتداد n40e، دارای طول ح...

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...

Journal: :زمین شناسی اقتصادی 0
محمد معانی جو عباس نصیری فرهاد آلیانی محمد مستقیمی میثم قلی پور عباس مقصودی

introduction the shahrestanak mn deposit is located in southern qom province, 12 km southwest of the city of kahak. based on geological-structural divisions of iran, the deposit belongs to central volcanic belt or urumieh-dokhtar zone. the venarch deposit is one the most important known manganese deposits in iran. the sharestanak and venarch deposits are spatially and temporally related to each...

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1. Introduction The rather limited Neogene-Quaternary olivine basaltic lava flows are outcropped in the Dehaj-Javazm area, north of Share-Babak, in the NW of Dehaj-Sarduieh magmatic belt as a part of the Urumieh-Dokhtar magmatic assemblage (UDMA). The rocks contain significant amounts of plagioclase both as phenocrysts and microliths in the microlithic groundmass which play an important role i...

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 ...

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
کریم عبدالهی سیلابی سید محسن طباطبایی منش سمیه کریمی

introduction the area studied is located north of azna (lorestan province) in a small portion of the sanandaj – sirjan structural zone (mohajjel et al., 2003).this area is part of the zagros orogenic belt, formed by the opening and closure of neotethyan ocean. from ne to sw, it consists of three parallel tectonic regions: the orumieh-dokhtar magmatic belt, the sanandaj-sirjan structural zone an...

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...

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