Volume 33 (2023)
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 23 (2014)
Volume 22 (2013)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Original Research Paper
Geothermometry and Geobarometry of Metamorphic Rocks of Dehnow (Northwest of Mashhad)

Ramin Samadi; M. V. Valizadeh; H. Mirnejad; H. Kawabata

Volume 21, Issue 84 , December 2012, Pages 3-14


  Metamorphic rocks of Dehnow area mainly consist of gray to black fine-grained schists. Garnet schists are closer to the tonalitic body than the garnet chloritoid schists. There is a thin layer of staurolite and andalusite bearing hornfels between these schists and the Dehnow tonalitic body. Garnet schists ...  Read More

Original Research Paper
Study of Tectonic Plate Motions Contribution of the Middle-East Region in the GPS Velocity Field of Iranian CampaignGlobal Geodynamic Network

B. Vosooghi; A. Rastbood

Volume 21, Issue 84 , December 2012, Pages 15-24


  In this research, the role of various existing tectonic plate and faulting motions in the middle-east region has been investigated on the geodetic data and its purpose is to estimate the contribution of these motions in the GPS velocity field of campaign global geodynamic network in the region of Iran ...  Read More

Original Research Paper
Study of Cranium of Gazella capricornis skull (Antilopinae) from Northwest of Iran

V. Khaki; Z. Purabrishami; A. Zavarehee; Kh. Khosrotehrani

Volume 21, Issue 84 , December 2012, Pages 25-30


  Vertebrate fossil fauna of Late Miocene age in Maragheh contains various mammals preserved in pyroclastic deposits of southern Sahand volcano. This study has been conducted on Gazella capricornis (a perfect skull). Since no other sample with such a good perfectness was found before at other localities ...  Read More

Original Research Paper
Microbiostratigraphic Study of the Gurpi Formation at Kuh-e Khaneh Kat (East of Shiraz)

M. R. Esmaeilbeig

Volume 21, Issue 84 , December 2012, Pages 31-36


  The study of planktonic foraminifera of the Gurpi Formation at Kuh-e Khane Kat (east of Shiraz) led me to find standard biozones from Early Santonian to Middle Campaninan. Four biozones were determined: biozones I (Dicarinella asymetrica zone) and II (Rosita fornicata zone) belong to Early and Late Santonian. ...  Read More

Original Research Paper
Paleontological Modification of Carboniferous Deposits at Simeh-Kuh Section - Northern Damghan, by Four Conodont Biozones

H. Mosaddegh; A. Barari; H. Hamdi2

Volume 21, Issue 84 , December 2012, Pages 37-42


  During the Carboniferous time, Iran was a part of the northern margin of Gondwana. Carboniferous deposits of Iran are characterized by continental to shallow marine deposits. The studied section (Simeh- Kooh) is located in 5 Km Northwest of Damghan city in the east Alborz region. The lower Carboniferous ...  Read More

Original Research Paper
Petrological, Geochemical and Tectonomagmatic Setting of Bouin- Miandasht Intrusion in Sanandaj- Sirjan Zone(SSZ) (West of Iran)

M. Sabeti; M. H. Emami; A. Saeedi; K. Ajdary; A. Minaee; A. R. Nadimi

Volume 21, Issue 84 , December 2012, Pages 43-56


  Bouin– Miandasht Intrusive body is located in South- West of Golpayegan quadrangle and Sanandaj- Sirjan Zone. This Intrusion is composed of a compositional range including: porphyroid granite (monzogranite- syenogranite), granodiorite and gabbro – diorite. Variation diagrams of major and ...  Read More

Original Research Paper
Identification of Two Different Phases of Metamorphosed Granitoid in Kuh-Sefid Tootak Anticline Based on U-Pb Age Dating

Behnaz Hosseini; M. Ghorbani; S. M. Pourmoafi; A. R. Ahmadi

Volume 21, Issue 84 , December 2012, Pages 57-66


  Kuh-Sefid anticline trends in NW-SE direction and locates in southern Sanandaj-Sirjan zone, and it contains a sequence of Paleozoic metamorphic rocks with facies ranging from greenschist to lower amphibolite. There are granitoid rocks emplaced in the core of this anticline, which based on their facies, ...  Read More

Original Research Paper
Sonic Log Effect Assessment on Lithology Estimation by well Logs using Artificial Neural Network in One of the South Pars Field Reservoirs

M. A. Dezfoolian

Volume 21, Issue 84 , December 2012, Pages 67-74


  Lithology Prediction is a fundamental stage in petroleum engineering and formation evaluation. This research is a type of artificial neural network modeling in order to use well bore logs in lithology prediction in a South Pars hydrocarbon reservoir. Here, two networks with three-layer back propagation ...  Read More

Original Research Paper
Environmental Geochemistry Investigation in Siahkal 1:50000 Map(Based on Geochemical Data Studies)

A. Farhadi; M. R. Jafari; S. M. H. Razavi

Volume 21, Issue 84 , December 2012, Pages 75-88


  Siahkal area (15 km southwest of Lahijan), is located  in SE of  Rasht 1:100000 geological map. According to the geochemical samples, collected in the coverage of this map, concentration of some elements like Mn, Co, Ni and Pb, have been  detected to be higher than  normal values, ...  Read More

Original Research Paper
Analysis of Discontinuties and its Importance on Optimization of Extraction (Case Study: Saeedi Ornamental Stone Quarry, Kerman)

SH. Shafiei; M. Ebadi; M. Torkashvand

Volume 21, Issue 84 , December 2012, Pages 89-98


  One of the most basic problems in the exploration and extraction of the ornamental stone quarries is the recognition and modeling of the discontinuties. Generally, in the most of the ornamental stone quarries, analysis of the discontinuties is not considered. This study is concerning to the discontinuities ...  Read More

Original Research Paper
Zoning of RQD Parameter, Based on Faults and Self-Organizing Map in Semilan Dam Site

A. Hossein Morshedy; H. Memarian

Volume 21, Issue 84 , December 2012, Pages 99-112


  Zoning is an important practice in earth sciences. In zonation, the study area is divided into separate parts and by compiling the results of these parts, a unique model is obtained. In this study, clustering methods are applied for zoning of Semilan dam site. Optimal number of clusters are measured ...  Read More

Original Research Paper
Petrography and Depositional Environment of Faraghan Formation in Golshan Field in Persian Gulf

M. Mehdinia; R. Moussavi Harami; D. Jahani

Volume 21, Issue 84 , December 2012, Pages 113-118


  The goal of this study is to use petrographic and other sedimentary features to interpret depositional environment of Faraghan Formation (Lower Permian) in one of the wells in Golshan Field. Golshan Gas Field is located at about 180 km South East of Bushehr between South Pars and North Pars and Ferdowsi ...  Read More

Original Research Paper
Petrology and Tectonic Setting of Dizbad Basalts, Neyshabour, NE Iran

A. Kamali; H. Pirooj; F. Nemati; A. Ameri; M. Fadaeyan

Volume 21, Issue 84 , December 2012, Pages 113-118


  The studied area is located in southern part of the Torghabeh quadrangle, 90 km SE of Mashad city. The rocks of the investigated area are alkaline basalt and trachy andesite. The major minerals are plagioclase and pyroxene, minor amounts of olivine. The accessory minerals are rutile, titanite and apatite. ...  Read More

Original Research Paper
The Effect of ASTER Data Calibration on Enhancing Lithological Units; a Case Study from Neyriz Ophiolite Complex

M. H. Tangestani; L. Jafari

Volume 21, Issue 84 , December 2012, Pages 129-138


  Various atmospheric correction algorithms were performed on ASTER L1B VNIR+SWIR datasets, and the results were compared with calibrated AST-07 dataset to introduce the best method. Neyriz ophiolite was chosen as a test area for this purpose. ASTER VNIR+SWIR datasets were calibrated to apparent reflectance ...  Read More

Original Research Paper
Release of Potentially Toxic Elements during Weathering of the Black Shales from Aq-Darreh Bala Abandoned Antimony Mine Area, Takab, NW Iran

Soroush Modabberi; Y. Rahimsouri; A. Yaghubpur; S. Alipour

Volume 21, Issue 84 , December 2012, Pages 139-148


  Black shales of the abandoned antimony mine of Aq-Darreh Bala Village in northwest of Takab city, northwest Iran, contain high concentrations of toxic elements, especially As (4403–11883 ppm), Sb (405–1022 ppm) and Hg (30–58 ppm).  Enrichment factor calculations revealed that some ...  Read More

Original Research Paper
The Application of RBF & PNN Neural Networks in Facies Determination in One of the South Gas Fields, Iran

A. Kakouei; M. Masihi; M. Shirani

Volume 21, Issue 84 , December 2012, Pages 149-152


  Determination of different facies is one of the important and basic tasks of geological engineering characterization of reservoir rocks from well logs and core data. Our objective is to identify and determine different facies of the South Pars Field using RBF and PNN neural networks in order to perform ...  Read More

Original Research Paper
Study of Joints on the North Eshtehard Fault Related Folding

Z. Hosseinmardi; M. Ghorashi; M. R. Ghassemi; M. Talebian

Volume 21, Issue 84 , December 2012, Pages 153-160


  The outcrop of northern part of North Eshtehard Thrust has been selected for study of structural evolution and geological processes. The study area includes folding structures with different scales from regional to outcrop which belong to fault related folding category. Analysis of joints in the region ...  Read More

Original Research Paper
Results of the Remote Sensing Studies and Reasons of Composite Halos in Exploration Kahang Area

A. Khakzad; A. Khakzad; H. Asadi; M. H. Emami

Volume 21, Issue 84 , December 2012, Pages 161-168


  Kahang exploration area located in Esfahan state and 10 Km of the east of Zefreh town that is located on Uromieh-Dokhtar volcanoplotonic belt. Primary results showed that it has good potential for resources of Copper (Cu) and Molybdenum (Mo). Kahang region is an alteration and breccia zone. Generally, ...  Read More

Original Research Paper
Paleoseismologic Activity and Subsidence Rate on Tehran Alluvium Deposits in Chitgar Section; using Paleoseismological Data

A. Kaveh Firouz; H. Nazari; M. Arian; A. Shafei; T. Majidi; M. Shokri

Volume 21, Issue 84 , December 2012, Pages 169-178


  The North Tehran Fault with a length of about 110 km in North of Tehran and soutern of central Alborz with W-E trend (N25˚E) and dipping (30˚NE) is located in western of Mosha Fault.The branch of Chitgar such as Milad and Vardavard Fault in the form of propagation fault is increased toward south. Previous ...  Read More

Original Research Paper
Bivalvias and Echinoides of Kazhdumi Formation from Sivand and Kuh-e- Khanekat Stratigraphic Sections in North and North- East of Shiraz

M. Dehghani; S. Dehghani; V. Ahmadi; A. Zavarei

Volume 21, Issue 84 , December 2012, Pages 179-188


  Two stratigraphic sections of Kazhdumi Formation were selected form Sivand (165m.) and Kuh-e-khanekat (108m.) Areas for Pelecypoda avd Echinoides study. Recognized taxones of Bivalvia and Echinoides are following as: Neithea striatocostata, Exogyra undata, Isocardia aff. neglecta, Astarte sp., Opis sp., ...  Read More

Original Research Paper
Petrology and Geochemistry of the Extrusive Sequence of Harsin Ophiolite, W Iran

Kh. Allahyari; M. Pourmoafi; M. Khaleatbari-Jafari

Volume 21, Issue 84 , December 2012, Pages 189-198


  The extrusive sequence of Kermanshah ophiolite complex are exposed in Tamark and Gashor area, in east of Kermanshah and Harsin, in west of Iran. These lavas are located along the Main Zagros Reverse Fault, which marks the ophiolitic suture zone between the Zagros belt and the Sanandaj-Sirjan zone. These ...  Read More

Original Research Paper
Remote Sensing Studies of Alteration Zones in Dahaneh Qaleh Exploration Prospect, Northwestern Bardeskan

Kh. Ebrahimi; p. Roohbakhsh; S. M. Homam; H. Abbasnia

Volume 21, Issue 84 , December 2012, Pages 199-208


  Dahaneh Qaleh exploration prospect is located about 300 km southwest of Mashhad and 50 km northwest of Bardeskan. The exploration prospect is also a part of Taknar massive sulfide mineralization zone and lithology of the area consists of chlorite sericite schist, biotite sericite schist and sericite ...  Read More

Original Research Paper
Seismicity of Rafsanjan-Zarand Region

A. Sistanipour; M. Pourkermani; M. Arian

Volume 21, Issue 84 , December 2012, Pages 207-212


  Bafq-Baghin fault system has formed by 8 fault segments. On this fault system has not recorded any historical seismic data. Instrumentally earthquakes are located in low depth and their magnitude is from small to medium. Morphometric parameters and the presence of fault scarp along the fault segments ...  Read More