Volume 32 (2022)
Volume 31 (2021)
Volume 30 (2020)
Volume 29 (2020)
Volume 28 (2019)
Volume 27 (2018)
Volume 26 (2017)
Volume 25 (2016)
Volume 24 (2015)
Volume 22 (2013)
Volume 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Original Research Paper
Application of the Monte Carlo Simulation in Analysis of Earthquake-Induced Landslides (Case Study: the Manjil Earthquake)

A.M Rajabi; M Khamehchiyan; M.R Mahdavifar

Volume 23, Issue 91 , June 2014, Pages 3-10


  One of the most important effects of the Manjil earthquake (M=7/7, 20/6/1990) has been triggering of the numerous landslides in the area affected by the earthquake. To predict landslides locations during the future earthquakes, it is essential to analyze the distribution of landslides triggered by the ...  Read More

Original Research Paper
Mineralogical, Geochemical and Genetic Aspects of Mineralization in Now-Chun Porphyry Mo-Cu Deposit, Kerman Province, Iran

S Soltaninejad; B Shafiei

Volume 23, Issue 91 , June 2014, Pages 11-24


  The Now-Chun deposit, in the Kerman porphyry copper belt, with proved reserve of 268 Mt ore grading 0.034% Mo (100 ppm cut off) and 62 Mt ore grading 0.43% Cu (0.25 cut off), is the first known occurrence of Mo-rich,relatively Cu-poor porphyry mineralization in Iran which is studied from the mineralogical, ...  Read More

Original Research Paper
Sequence Stratigraphy of Members 1, 2, and 3 of the Mila Formation in Eastern Central Alborz

H Amin-Rasouli; Y Lasemi; S Zaheri

Volume 23, Issue 91 , June 2014, Pages 25-38


  The middle Cambrian-early Ordovician transgression in the AlborzMountains resulted in the deposition of members 1 through 3 of the Mila Formation showing an overall transgressive trend. This succession is bounded unconformably by the Top-Quartzite of the Lalun Formation at the below and member 4 of the ...  Read More

Original Research Paper
Ammonites of the Aitamir Formation in the Zawin Section (E Kopeh Dagh) and the First Record of Marine Dinosaurs from the Cretaceous of Iran

A Mosavinia; K Seyed-Emami; A.A Aryai

Volume 23, Issue 91 , June 2014, Pages 39-45


  The Aitamir Formation follows conformably but with a sharp boundary the dark shales of Sanganeh Formation (Aptian-early Albian) and is followed discontinuously by the whitish marls and chalky limestones of the Abderaz Formation (Turonian-Coniacian). 7 species, 13 genera and 2 subgenera of ammonites are ...  Read More

Original Research Paper
The Study of Influence of Bubble Surface Area Flux on Flotation Rate Constant of Coal Particles

B Shahbazi; B Rezai; S.M.J Koleini; M Noaparast

Volume 23, Issue 91 , June 2014, Pages 45-52


  In this research the effect of bubble surface area flux on flotation rate constant of coal particles was investigated and the results showed that flotation rate constant increased with increasing bubble surface area flux. The obtained Maximum flotation rate constant was 3.30 /min while the particle size ...  Read More

Original Research Paper
A New Genus and Species of Rugosa Coral from the Late Visean Mobarak Formation in the Vali-Abad Section (Central Alborz, N Iran)

K Khaksar; F Rezvannia; M.R Kebriaei-Zadeh

Volume 23, Issue 91 , June 2014, Pages 53-56


  The rugose coral Marzanophyllum chalusense gen. and sp. nov. from late Visean (early Carboniferous) in the Vali-Abad section (Central Alborz, N Iran) is described in detail. This solitary coral has thick wall and thick septa with no dissepiment. The genus Zaphrentoides has similar structure, but it possesses ...  Read More

Original Research Paper
Evaluation of Geomechanical Properties of the Asmari Formation (Zagros, W Shiraz) with Incorporation of Laboratory Tests and Numerical Modeling

E Hajizadeh Naddaf; B Oveisi; M.R Ghasemi; M.J Bolurchi

Volume 23, Issue 91 , June 2014, Pages 57-62


  The analytical models in rock mechanics represent suitable analysis of deformation and failure conditions of the samples bearing simple geometry and mechanical properties. Nowadays different methods of numerical modeling, like finite difference method (FDM), are used for analysis of continuous, non- ...  Read More

Original Research Paper
Geology and Petrology of the Soltan Maydan Basaltic Complex in North-Northeast of Shahrud, Eastern Alborz, North of Iran

M Derakhshi; H Ghasemi; T Sahami

Volume 23, Issue 91 , June 2014, Pages 63-76


  The Soltan Maydan Basaltic Complex indicates the most important, thickest, and most voluminous early Paleozoic magmatic activity in Iran outcropping in the eastern Alborz structural zone, in the north-northeast of Shahrud. This complex overlies the late Ordovician Ghelli Formation and is overlain by ...  Read More

Original Research Paper
Geological Evidences and Ore Body Facies of Tangedezan Zn – Pb (Ag) Deposit in a Jurassic-Cretaceous Carbonate Sequence, Booeen Miandasht (Isfahan, Iran)

S.T Delavar; I Rasa; M Lotfi; G Borg; N Rashidnejad Omran; P Afzal

Volume 23, Issue 91 , June 2014, Pages 77-88


  Tangedezan Zn-Pb deposit is located in 22 km west of Booeen Miandasht city, in western part of Isfahan province and in Malayer–Isfahan Pb-Zn mineralization belt. This deposit is one of the stratabound deposits in a Jurassic-Cretaceous carbonate sequence. Two main ore body geometries have been recognized ...  Read More

Original Research Paper
Introduction and Distribution of the Hyaline Foraminifera in Persian Gulf Coastal Sediments (from Bandar-e Lengeh to Bushehr)

M Sohrabi Mollayousefi; M Sahba

Volume 23, Issue 91 , June 2014, Pages 89-95


  The study area includes a part of the northern strip of Persian Gulf coast, a distance of approximately 650 kilometers. The Persian Gulf is a marginal, semi-closed, and shallow sea with salty and warm water. It has a circular flow in a clockwise direction along the coast of Iran, caused by the high range ...  Read More

Original Research Paper
Erosion and Geomorphologic Analysis of Drainage Basins in Damavand Volcano Cone

B Azadbakht; M Zareinejad

Volume 23, Issue 91 , June 2014, Pages 95-100


  Water causes erosion of different forms in nature and creates diverse landforms on the earth’s surface depending on the manner it appears in nature. Although water is itself a former factor, it flows under the morphological effect of earth’s surface (Ramasht, 2005). The difference of earth’s ...  Read More

Original Research Paper
Guri Limestone (Early Miocene) Oysters in North of Bandar-e-Abbas, Zade Mahmoud Area, Southeast of Zagros Basin

F Hosseinipour; M.J Hassani; M Dastanpour

Volume 23, Issue 91 , June 2014, Pages 101-110


  The Guri limestone member of the Mishan formation in SE of Zagros Basin (N of Bandar-e-Abbas) consists of the thick bedded limestone bearing oyster shells. Seven species of Ostreidae and Gryphaeidae belonging to four genera of Crassostrea, Cubitostrea, Ostrea and Hyotissa were identified as: Cubitostrea ...  Read More

Original Research Paper
Design of a New Computer Code: Modification and Substantiation of a New Methodology in Determination and Analysis of Site Liquefaction Potential

A Abbaszadeh Shahri; F Rezaei; K Mehdizadeh Farsad; R Rajablou; N Panaei

Volume 23, Issue 91 , June 2014, Pages 111-118


  Liquefaction is a process in which a soil suddenly loses its strength and most commonly occurs as a result of ground shaking during a large earthquake or other rapid loading. The aim of this study is providing and developing of a geotechnical- based computer code for nonlinear site response analysis, ...  Read More

Original Research Paper
Structure of Shear Zone and Folds Interference Patterns in North Esfajerd, Sanandaj- Sirjan Zone

E Moosavi; M Mohajjel

Volume 23, Issue 91 , June 2014, Pages 119-130


  The North Esfajerd ductile shear zone is exposed in NE Golpaygan in the Sanandaj-Sirjan zone. The shear sense indicators are observed in the both outcrop and microscopic scales in this shear zone. These indicators are representing a NW striking dextral shear. The dynamic analysis and outcrop- scale indicators ...  Read More

Original Research Paper
Mesoscopic and Microscopic Analyses of Paleostress and Strain Orientation of the Dasht-e-Arjan Graben: Using Calcite e-twin and c-axis of the Slickensides and Slikenlines Southwestern Iran

Kh Sarkarinejad; Z Kamali

Volume 23, Issue 91 , June 2014, Pages 131-140


  The NE oriented Dasht-e-Arjan graben with orientation is located in 65 Km west of ShirazCity. This graben is resulted from the active Kare-e-Bas fault segmentations. This extensional graben system is part of the Zagros Simply Folded Belt and bounded by two boundary fault system perpendicular to the Shahneshin ...  Read More

Original Research Paper
Tectonic Activity Rate in Behabad Area According to Morphotectonic Indices, NE Yazd Province, Iran

M Sheban; F Ghaemy; A Abbasnejad; F Ghaemy

Volume 23, Issue 91 , June 2014, Pages 141-152


  Neotectonics that is a major factor of landform development in tectonically active regions has significantly affected fluvial systems and mountain-front landscapes in the Behabad area of the Central Iran Zone. To assess tectonic activities in the area, we analyzed geomorphic indices including the mountain-front ...  Read More

Original Research Paper
Folding Style in Western Kopet Dagh Region (Northeast of Iran)

A.N Pourtaghavi; M Pourkermani; G.R Gharabeigli; Sh Sherkati

Volume 23, Issue 91 , June 2014, Pages 153-160


  The western part of Kopet Dagh fold belt is located in NE of Iran. The southern half of this belt is located in Iran and the northern half in Turkmenistan. The Kopet Dagh fold belt can be considered as the second important hydrocarbon province of Iran. Sedimentation in this zone began in Middle Jurassic ...  Read More

Original Research Paper
Provenance and Tectonic Setting of Eocene Turbidite Sandstones of Saravan, Southeast of Iran

K Shabani Goraji; R Moussavi-Harami; A Mahboubi; Kh Khosro Tehrani

Volume 23, Issue 91 , June 2014, Pages 161-172


  The provenance and tectonic setting of the Eocene turbidite sandstones of the Saravan area in southeast of Iran have been studied based on petrography and geochemistry. These sandstones are very laterally extended and traceable at several kilometers. The sandstones are sharp-based and well-preserved ...  Read More

Original Research Paper
Platinum- Group Elements (PGE) and Chromian Spinel Geochemistry in the Peridotites from the Abdasht Ultramafic Complex, Kerman, Southeastern Iran

A.R Najafzadeh; H Ahmadipour

Volume 23, Issue 91 , June 2014, Pages 173-186


  The Abdasht complex is one of the major ultramafic complexes in south-east Iran (Esfandagheh area). This complex is composed mainly of dunite, harzburgite, lherzolite, chromitite, and subordinate wehrlite. The detailed electron microprobe study revealed very high Cr# (48-86), Mg# (26-56) and very low ...  Read More

Original Research Paper
Investigation on Distribution of Radioactive Elements in SW Masuleh Based on the Airborne Radiometer Data, Gilan Province, Iran

A Zia Zarifi; S Mehri; P Afzal; H.R Jafari

Volume 23, Issue 91 , June 2014, Pages 187-195


  Airborne radiometer data is the best to study the distribution of radioactive elements of an area. In this paper, separation of anomaly values have been performed by means of the classical statistics, the tables of frequency distribution of uranium, thorium and potassium have been produced, the frequency ...  Read More

Original Research Paper
Mineralization and Geochemistry of Rare Earth Elements of Heydar-Abad Laterite Horizon, South of Urmia, West Azarbaidjan Province, Iran

S Alipour; A Abedini; Sh Abdali

Volume 23, Issue 91 , June 2014, Pages 195-204


  The Heydar-Abad laterite horizon is located at 65 km south of Urmia, West Azarbaidjan province. This horizon was developed as stratiform bed within the carbonate rocks of the late Permian Ruteh Formation. Based on the petrographical and mineralographical studies,the ores of this horizon contain micro-granular, ...  Read More

Original Research Paper
Investigation of Tectonically Rotation of Gabbroic Blocks along the Sahneh Fault Based on the Analysis of Palaeomagnetic Data, Western Iran

M Asadi; H Alimohammadian; M Oviesy Moakher; N Mirzaei

Volume 23, Issue 91 , June 2014, Pages 205-215


  Palaeomagnetic analysis has been applied worldwide on active faults for decades. The palaeomagnetic investigation on the Sahneh Fault, at middle part of the Zagros Main Recent fault, is the main objective of this research. The length of the Sahneh fault, which is about 100 km in study area, cuts the ...  Read More

Original Research Paper
Petrogenesis of Akapol granitoidic intrusion Kelardasht area

M.A Sajadi Nasab; M Vosoughi Abedini; M.H Emami; M Ghorbani

Volume 23, Issue 91 , June 2014, Pages 215-229


  The studied granitoidic intrusion with about 50 km2 area is located in the SW of Kelardasht, one of the regions in MazandaranProvince. It is one of the pluton masses of the Central Alborz structural zone. The mass has an age between 54±4 and 56±3 million years (late Paleocene to early Eocene) ...  Read More