Akram Alizadeh

• PhD
• Professor (Associate) at Urmia University

The Urmia Lake Basin is located between the West and East Azerbaijan provinces in the northwest of Iran. Lake Urmia is the twentieth largest lake and second largest hypersaline lake in the world. Stratigraphic columns have been constructed, using published information, to compare the sedimentary units deposited from the Permian to the Neogene on th...

The studied area at west of the Lake Urmia, comprises the Urmia and surrounding region. Due to the probabilistic seismic hazard analysis (PSHA) of the Urmia city, capital of the Azerbaijan Province, the Ez-Frisk and Kijko software was used to calculate the period of earthquakes and seismic coefficients of the area by zmap. The results show that the...

The Dara anticline is one of the anticlinal oil structures in the Zagros fold-and-thrust belt that were formed in the Dezful Embayment west of the Kazerun fault zone. Determination of the tectonically active parts of this structure is important for structural analysis and oil exploration. Consequently, we have used Arc GIS software to analyze activ...

The northeastern part of the Tabriz, Khaje area has been studied to determine the relationship between the orientation of local structures and regional tectonics, and the influence of both on salt deformation. All the pre-Pliocene sedimentary rocks in the area belong to the Miocene Upper Red Formation. Sand-stones form most of the outcrops because...

اندازه گیری شاخص های لرزه خیزی از روش های ارزیابی زمی نساخت فعال و نوزمی نساخت برای یک منطقه ب هشمار می آید. 21 مرداد 1391 دو زمين لرزه به فاصله زمانی 11 6 در منطقه اهر- ورزقان که از مناطق فعال زمی نساختی است، ب هوقوع پیوست. بررسی های لرزه زمین ساختی نشان می دهند که گسل های / 6 و 3 / دقیقه ای به ترتیب با بزرگی های 4 مسبب زمين لرزه، از جمله گسل های...

Fracture system have important role in the formation of silica vein, and with attention to significance effect of silica vein in the ore mineral deposition, recognition of fault and fracture systems are one of the principle step in the mineral exploration. Structural analysis in the west of Ahar indicated three vein system with echelons array from...

‫.Density and structural analysis of major fault-related fractures in Tasuj area, Northwest Iran Abstract: Study of geological structure such as lineaments have been attracting attention in the recent years. Structural analysis of lineament requires detailed investigations. The spatial orientation of lineament have important role in the engineering...

Ancient subduction zones are characterized by metamorphic and orogenic belts. The Zagros Orogenic Belt comprises almost all sections of an ancient subduction zone along which Neo-Tethyan oceanic crust was subducted beneath central Iran. The Eslami Peninsula, as a part of the Zagros Orogenic Belt in Azerbaijan province, northwestern Iran, is situate...

The increasing number of earthquakes in recent decades in Northwestern Iran and the determination of the epicenters of these events makes possible to estimate accurately the changing tectonic regime using the Win-Tensor inversion focal mechanism program. For this purpose focal mechanism data were collected from various sources, including the Centro...

به منظور دستیابی به نتایج اساسی و مهم در تفسیر حوادث تکتونیکی و بررسی فعالیت های زمین ساختی نسبی منطقه می توان از روش مطالعه شاخص های مورفومتری و مورفوتکتونیکی استفاده نمود. این روش برای گسل پیرانشهر واقع در منطقه پیرانشهر در استان آذربایجان غربی مورد استفاده قرار گرفت. این منطقه در زون سنندج - سیرجان قرار داشته و از دیدگاه تکتونیکی فعال بوده و محل...

Structural geology studies are important stages of exploration and production of oilfields since familiarity with the existing structures could have a substantial role in the development of oilfields. Salman oilfield located in the Persian Gulf is among those which have been formed in salty dome regions where several faults have been created by dia...

Fracture system have important role in the formation of silica vein, and with attention to significance effect of silica vein in the ore mineral deposition, recognition of fault and fracture systems are one of the principle step in the mineral exploration. Structural analysis in the west of Ahar indicated three vein system with echelons array from...

محدوده مورد مطالعه در شمال باختر مرزن آباد، دارای گسلهای شاخصی میباشد. با توجه به نقش گسلها در رخداد زمین لغزش و شکلگیری فرونشستها و به تبع آن، وارد آمدن خسارت به سازههای سطحی همچون واحدهای صنعتی و شبکه توزیع برق در این منطقه، پهنهبندی پتانسیل فرونشست و ارزیابی تأثیر ساختارهای تکتونیکی بر میزان فرونشست، مورد بررسی قرار گرفت. پس از تعیین روند و نوع...

Seismotectonic research plays a key role in the evaluation of earthquake risk in any region. There are two different generations of fold and fault structures on the western part of the Urmia Lake: the first generation having been formed as result of compressional stresses arising of the closure of Tethys ocean at Paleocene and the second has result...

Appraisal of Active Tectonics in the Salmas Region(Northwestern Iran): Insights from Geomorphic Indices Landscape and morphology in active regions are in part controlled by tectonic movements. They therefore play an important role in assessing tectonic evolution and earthquake risk. The Salmas region in the West Azerbaijan province of northwest Ira...

Lake Urmia in northwestern Iran is one of the hypersaline lakes of world. In the Urmia region a Cenozoic island arc was formed by northeastward subduction of Neo-Tethyan oceanic plate beneath central Iran; the lake is therefore located in the fore-arc basin tectonic setting. Satellite imagery of the Urmia region illustrates that the trend of faults...

Dehbid mylonite nappes associated with the Tutak gneiss dome as the Zagros hinterland involved-basement window in the Zagros Orogenic Belt has significant components of dextral sense of shear along the mylonite nappes and are related to the high proportion of simple shear relative to pure shear deformation. Kinematic vorticity analysis (W k) was ma...

Lake Urmia in northwestern Iran (West Azerbaijan Province) is one of the great hypersaline lakes of the world. The approximate area of this salty lake is 5000 km2 with average depth of 6 m. The Urmia Lake has shrunk dramatically due to several factors during last decades. In the Lake Urmia region a Cenozoic island arc complex within the Zagros Orog...

Exhumation of the Tutak mantled gneiss dome without significant cooling has taken place in a doubly plunging anticline within the Sanandaj-Sirjan HP-LT metamorphic belt in the Zagros Thrust System of Iran. Reconstruction of structural evolution of the Tutak gneiss dome at the contact between Arabian and Iranian plates by 40Ar/39Ar geochronology exh...

Lake Urmia (Reza Iyeh) in northwestern Iran is the second salt lake in the world. The shape and morphology of Urmia tectonic lake were controlled by two main fault systems around it; one almost along and the other perpendicular to the Zagros Thrust System with NE-SW direction. This lake locates in Fore-arc basin of the Sahand Volcanic Arc resulting...

The Bendenow granite-gneiss batholith is part of the Tutak gneiss dome and was emplaced within a regime characterized by oblique convergence between the Arabian plate and Central Iranian microcontinent. The Tutak gneiss dome consists of metamorphosed Silurian and Devonian strata, granite-gneiss, marble, and schist. Its foliation is related to domin...