A5101609060- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Hand Gesture Recognition Systems
- Mineralogy and Gemology Studies
- Clay minerals and soil interactions
- Rough Sets and Fuzzy Logic
- Hydrocarbon exploration and reservoir analysis
- Seismic Waves and Analysis
- Groundwater and Watershed Analysis
- Sustainable Supply Chain Management
- Geological Formations and Processes Exploration
- Supply Chain and Inventory Management
- Groundwater flow and contamination studies
- Groundwater and Isotope Geochemistry
- Mining and Gasification Technologies
- Process Optimization and Integration
- Natural Language Processing Techniques
- Non-Invasive Vital Sign Monitoring
- Gastrointestinal Tumor Research and Treatment
- Digital Economy and Work Transformation
- Therapeutic Uses of Natural Elements
- Esophageal and GI Pathology
- Marine and environmental studies
University of Zanjan
2016-2025
Shiraz University of Medical Sciences
2025
Islamic Azad University, Isfahan
2023
Shahid Beheshti University of Medical Sciences
2023
University of Kashan
2022
University of Tabriz
2022
Kermanshah University of Medical Sciences
2021
Niroo Research Institute
2015
Islamic Azad University, Karaj
2015
University of Applied Science and Technology
2015
Determining the timing of initial continental collision is a fundamental step in accurately reconstructing paleogeodynamic evolution orogenic belts. This process necessitates comprehensive integration evidence gathered through various analytical techniques, both field and laboratory, to achieve conclusive understanding. We here use methods, including sandstone petrography, U-Pb dating, trace element Hf isotopic compositions detrital zircon, Haji Abad (eastern Zagros Orogen) Shamil areas...
Abstract We have used U‐Pb zircon ages and Hf isotopic compositions for detrital zircons from Eocene Cretaceous‐Triassic sedimentary rocks of the Makran accretionary complex (MAC, Iran) to understand source growth MAC during Mesozoic Cenozoic time. The sandstones reveal main age distribution Paleocene with a peak at 54 Ma show εHf( t ) values −47.7 +12.1. Our compiled U‐Pb‐Hf data both Urumieh‐Dokhtar Magmatic Belt magmatic Paleogene that continental arc are important suppliers zircons....
ABSTRACT Retrograde intussusception may occur following Roux‐en‐Y gastric bypass surgery with a variety of presentations including colicky abdominal pain, constipation, and vomiting. A rare manifestation this complication is upper gastrointestinal bleeding (hematemesis) which can cause misdiagnosis.
The Makran complex in southeast Iran provides a spectacular subduction-related accretionary to understand the mechanism of oceanic accretion and evolution subduction zones. In this paper, we present new major trace element data as well isotopic compositions mafic volcanic blocks from ophiolitic mélange (OMC). Our aim is assess genesis these rocks discuss their implications on Neotethys Ocean. These are composed mainly basalts with minor trachytes. lavas occasionally interlayered tuff layers....
Zircon U-Pb-Hf isotopes, integrated with bulk-rock major, trace element, and isotopic compositions of amphibolites from the Makran ophiolitic mélange complex (OMC), carry implications on evolution Neo-Tethys Ocean. Field petrographical-geochemical data confirm these as products metamorphism a mafic protolith. Zircons have U-Pb ages Late Early Permian (273 Ma) to Triassic (210 Ma), their εHf(t) values vary +6.32 +15.4. The are geochemically similar transitional- or enriched-MORBs....
Abstract The Niyasar plutonic complex, one of the Cenozoic magmatic assemblages in Urumieh‐Dokhtar belt, was subject detailed petrographic and mineralogical investigations. complex is composed Eocene to Oligocene mafic rocks Miocene granitoids. Eleven samples, representing major rock units contact aureole were chosen for mineral chemical studies estimation pressure, temperature, oxygen fugacity conditions crystallization during emplacement various bodies. analyzed samples are varying...
منطقه آقکند در فاصله 48 کیلومتری شمال زنجان واقع شده است و بخشی از زیرپهنه طارم- هشتجین پهنه ساختاری البرز باختری- آذربایجان محسوب میشود. کانهزایی مس این بهصورت رگه کوارتز- فلوئورین دار میزبان گدازههای بازالت آندزیتی ائوسن رخداده است. بر اساس بررسیهای میکروسکپی، کانههای فلزی آق کند شامل کالکوپیریت به مقدار کمتر اسپکیولاریت، کانیهای مرحله سوپرژن باطله کوارتز، کلریت هستند. مهمترین بافتهای کانسنگ دانه پراکنده، رگه-رگهچه ای، برشی، پرکننده فضای خالی، جانشینی، کوکاد، قشرگون، گل کلمی...
باتولیت گرانیتوئیدی صاحب در شمال استان کردستان و از دیدگاه تقسیمبندی ساختاری ایران، پهنه دگرگونی-ماگمایی سنندج-سیرجان قرار دارد. این متشکل چندین فاز نفوذی با ترکیب کوارتزمونزودیوریت، کوارتزمونزونیت مونزوگرانیت است. یک دسته دایکهای دیابازی نیز را قطع کردهاند. بر اساس بررسیهای پتروگرافی کانیهای اصلی ارتوکلاز، پلاژیوکلاز، کوارتز، آمفیبول بیوتیت، نسبتهای مختلف تشکیلشده بافتهای شاخص گرانولار، پوئیکیلیتیک میرمکیتی هستند. ویژگیهای کانیشناسی قابلمقایسه گرانیتوئیدهای I-type...
The Oligocene Nasrand intrusive rocks (NIRs), located in the central part of Urumieh–Dokhtar magmatic arc, are mainly composed granite and subordinate diorite gabbro. These characterized by enrichment light rare earth elements (LREEs), Nb‐Ta negative anomalies, high LILE/HFSE, suggesting a subduction‐related origin. felsic with compositions have SiO 2 content (69.77–77.88 wt.%), low Mg# (0.02–0.43), Nb/Ta, Zr/Hf (Avg: 12.53, 33.08, respectively). initial 87 Sr/ 86 Sr ratio εNd (t) values...
Application of Cr-spinel mineral chemistry in petrogenetic evolution and tectonic setting NE Kamyaran ophiolitic complex
Petrological, geochemical and zircon U–Pb Hf isotope studies were carried out on the Hajseyran pluton, along Tarom–Hashtjin metallogenic zone, as part of Alborz–Azerbaijan magmatic belt, which is located in central Alpine–Himalayan orogenic belt. The made up syenite, monzonite, quartz-monzonite granite, yields a age 39.20 ± 0.56 Ma (for sample) with shoshonitic features. Enrichment large ion lithophile elements, depletion high-field-strength elements negative anomalies Nb, Ta Ti Chomalou...
Geochemistry and tectonic setting of Aralan granitic intrusion (southwest Marand), Central Iran zone