Volume 34 (2024)
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 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 17 (2008)
Volume 16 (2007)
Original Research Paper
Study of Elastic Modulus of Alluvium Deposits in Southern Tehran

A. Ghanbari

Volume 18, Issue 71 , January 2009, Pages 3-8

https://doi.org/10.22071/gsj.2010.56979

Abstract
  The results of over 100 geotechnical site investigations in different zones of Tehran alluvium in the south part of Tehran city were analyzed to determine the correlation of modulus between elasticity and SPT number of soil in southern Tehran alluvium. The alluvial deposits in southern Tehran are composed ...  Read More

Original Research Paper
Application of PGE in Exploration and Economic Evaluation of Sabzevar Ophiolitic Belt for Chromite Deposits

H.R. Vatanpour; A. Khakzad; M. Ghaderi

Volume 18, Issue 71 , January 2009, Pages 9-12

https://doi.org/10.22071/gsj.2010.56980

Abstract
  Sabzevar ophiolitic belt is located in the northwest of Iran, north of Sabzevar. The current study is carried out for the first time in Iran with an exploration approach in the western part of the belt. Study of Platinum Group Elements (PGE) is of high importance for determining the genesis and economic ...  Read More

Original Research Paper
Structural Evidences of N-S Striking Faults Effect on Deformation Development in SE Birjand , Sistan Zone

E. Gholami; M. A. A. Nogole sadat; M. M. Khatib; A. Yassaghi

Volume 18, Issue 71 , January 2009, Pages 13-19

https://doi.org/10.22071/gsj.2010.56982

Abstract
   Right lateral shear between Central Iran and Afghanestan caused activity of N-S and NW-SE fault zones in eastern Iran. Faults interaction effect on creation of restraining zones and out-crop of ophiolitic rocks along fault zones. Study of geometric and kinematic of structures approache to recognition ...  Read More

Original Research Paper
Biozonation of Geirud Formation in the Eastern Alborz (Damghan Region) based on the Brachiopoda

M. R. Kebria-ee

Volume 18, Issue 71 , January 2009, Pages 19-30

https://doi.org/10.22071/gsj.2010.56983

Abstract
  Geirud Formation has a wide distribution in the Damghan region. The Formation Lithology is mostly composed of limestone, marly limestone, shale and quartizic sandstone and its thickness ranges from 10 - 200 meters. Brachiopoda of Geirud Formation in the southwest, north and northeast of Damghan region ...  Read More

Original Research Paper
The Geochemistry and Petrology of Mantle Sequence in the Nain Ophiolite

M. Rahgoshay; J. Mehdipour Ghazi; H. Shafaii Moghadam

Volume 18, Issue 71 , January 2009, Pages 31-44

https://doi.org/10.22071/gsj.2010.56984

Abstract
  Peridotites (Cpx-bearing harzburgites, lherzolites, wherlites and dunites) associated with pegmatite gabbros, gabbro impregnations, gabbroic-diabasic dikes, pyroxenites and websterites are the main constituents of the mantle sequence in the Nain ophioliote assemblage. Petrographic and geochemical studies ...  Read More

Original Research Paper
Analyzing Geological Survey of Iran’s (GSI) Organizational Structure With a Proposed Ideal Model

T. Roshandel Arbatani; A. Gharagozlou; H. Khastar; A. Aazami

Volume 18, Issue 71 , January 2009, Pages 45-52

https://doi.org/10.22071/gsj.2010.56985

Abstract
  Organizational structure, along with goals, human resources and technology, is among the major elements of an organization. Hence, its study and analysis lead to more fundamental transformations and finally increase of organizational capabilities. In current research, organizational structure of Geological ...  Read More

Original Research Paper
Geology, Geochemistry and Genesis of Polymetal Mineralization in the Miveh – Rud Area, NW Iran

H. Jamali; A. Yaghubpur; B. Mehrabi

Volume 18, Issue 71 , January 2009, Pages 53-62

https://doi.org/10.22071/gsj.2010.56986

Abstract
  Miveh – Rud area is located 50 km north of Tabriz and 65 km west of Ahar at 36ْْ 33′ 02″to 38ْ, 34′ 52″ N and 46 ْْ 12′ 20″ to 46 ْْ 14′ 35″ E. The oldest rock unit in the area includes a thick sequence of Paleocene sedimentary rocks comprising ...  Read More

Original Research Paper
Interpretation of Magnetic Data from an Iron Deposit in Northeast of Semnan

A. Moradzadeh; F. Doulati Ardejani; B. Tayebi

Volume 18, Issue 71 , January 2009, Pages 63-68

https://doi.org/10.22071/gsj.2010.56987

Abstract
   There are a few iron deposits in the north and northeastern part of Semnan city that none of them has a systematic exploration background. Ojat_Abad deposit is one of them located in 63 km of north-east of Semnan at the southern side of Semnan - Damghan main road. A magnetic survey including 1200 ...  Read More

Original Research Paper
Ore-bearing Facies of Ahmad-Abad Zn- Pb (Mo) Deposit, Northeast of Bafq and Comparison with Bleiberg at Alps

A. Javanshir; E. Rastad; A. Rabbani

Volume 18, Issue 71 , January 2009, Pages 69-80

https://doi.org/10.22071/gsj.2010.56989

Abstract
  Ahmad-Abad Zn, Pb (Mo) deposit is located in Central Iran and Posht-e-Badam Block. This deposit is limited in dolomitic units of Shotori Formation (Middle Triassic) with lens type geometry parallel to layering Ahmad-Abad Zn, Pb (Mo) mineralization which is a stratabound ore deposit and sometimes vein ...  Read More

Original Research Paper
Aftershock Analysis of the 2005 November 27 Qeshm Island Earthquake (Zagros - Iran)

A. Gholam Zadeh; F. Yamini-Fard

Volume 18, Issue 71 , January 2009, Pages 81-84

https://doi.org/10.22071/gsj.2010.56990

Abstract
  A moderate earthquake (MW= 6.0) struck the Qeshm Island in the Hormozgan province on November 27, 2005 (17:22 GMT) and resulted in a severe damage and about 10 casualties. The main-shock was followed by an aftershock with magnitude MW=5.5 with different focal mechanisms from main-shock. A dense local ...  Read More

Original Research Paper
Petrology, Geochemistry and Tectonic Setting of Eocene Volcanic Rocks from East of Heris, East Azarbaijan, NW Iran

A. Ameri; N. Ashrafi; H. Karimi Gharebaba

Volume 18, Issue 71 , January 2009, Pages 85-90

https://doi.org/10.22071/gsj.2010.56992

Abstract
  The study area is located about 20 km to the east of the Heris town in northwest Iran, and lies in the Alborz-Azarbaijan geological zone. The occurrence of lava domes associated with thick lava flows, volcanic breccias, and ignimbrite layers indicate an important eruptive center in the study area. The ...  Read More

Original Research Paper
Kinematic Analysis of Folding in Anticline Structures in the Interior Fars Region

M. A. Ganjavian; S. Shahriari; A. Yassaqi

Volume 18, Issue 71 , January 2009, Pages 91-96

https://doi.org/10.22071/gsj.2010.56993

Abstract
  Fars region in southwest Iran lies at the Zagros foreland and is bounded to the north and east by the Zagros thrust, to the west by the Kazerun fault, and to the south by the HormozStrait and the Persian Gulf. Thrust faults and associated folds are the main structures in the Fars region. The structures ...  Read More

Original Research Paper
The Study of Mass Changes during Hydrothermal Alteration in the Astaneh Granitoid (SW of Arak)

D. Esmaeily; S. Z. Afshooni

Volume 18, Issue 71 , January 2009, Pages 97-104

https://doi.org/10.22071/gsj.2010.56996

Abstract
  The Astaneh granitoid massif in the Sanandaj-Sirjan zone, covering an area of about 30 km2, located in 40 km to Arak city, is mainly composed of granodioritic rocks. They are widely affected by hydrothermal alteration and six alteration zones including phyllic (sericitic), chloritic, propylitic, argillic, ...  Read More

Original Research Paper
Depositional History, Diagenesis and Geochemistry of the Tale-Zang Formation, South of Lurestan

A. Zohdi; M. H. Adabi

Volume 18, Issue 71 , January 2009, Pages 105-114

https://doi.org/10.22071/gsj.2010.56997

Abstract
  Carbonate sequences of the Taleh-Zang Formation mainly consist of large benthic foraminifera (e.g., Nummulites and Alveolina) along with other skeletal and non-skeletal components. In this formation, the water depth during deposition was determined based on the variation and different types of benthic ...  Read More

Original Research Paper
A New Method for Joint Set Classification Based on Bayesian Optimum Classifier

B. Tokhmechi; H. Memarian; H. Ahmadi Noubari; B. Moshiri

Volume 18, Issue 71 , January 2009, Pages 115-122

https://doi.org/10.22071/gsj.2010.56998

Abstract
  Joint study is one of the primary jobs in many geological, mining, geotechnical and petroleum exploration projects. Up to 10 features of joints are gathered during each field survey, while only two of them (dip and dip direction) are normally used to classify these complex features. This paper proposes ...  Read More

Original Research Paper
Petrology, Geochemistry and Tectonomagmatic Setting of Kamtal Intrusion (North of Kharvana, Eastern Azarbaijan)

M .A. Mokhtari; H. Moein Vaziri; M.R. Ghorbani; M. Mehr Parto

Volume 18, Issue 71 , January 2009, Pages 123-128

https://doi.org/10.22071/gsj.2010.56999

Abstract
  Kamtal intrusion is located in East Azarbaijan province, NW of Iran, near the Armenia border. The Kamtal intrusion consist of an acidic part with monzogranitic composition and an intermediate- basic part which compositionally composed of monzonite, monzodiorite, quartz  monzonite, quartz monzodiorite ...  Read More

Original Research Paper
Ore Geology and Fluid Inclusion Studies of Arghash Gold Prospect, Southwest Neishabour, Northeastern Iran

E. Ashrafpour; S. Alirezaei; K.M. Ansdell

Volume 18, Issue 71 , January 2009, Pages 129-136

https://doi.org/10.22071/gsj.2010.57001

Abstract
  Arghash gold district is located in the eastern Sabzevar zone. The basement of this zone consists of Precambrian metamorphosed rocks and Paleozoic-Mesozoic epicontinental sediments. The basement is covered by Upper Cretaceous ophiolitic mélange and Tertiary magmatic and sedimentary rocks. Arghash ...  Read More

Original Research Paper
Analysis of Microtremor Array Measurements using Spatial Auto-correlation Method for Estimation of Vs Profile in South-East of Bam City

M. R. Ghayamghamian; A. Fereydouni

Volume 18, Issue 71 , January 2009, Pages 137-142

https://doi.org/10.22071/gsj.2010.57002

Abstract
  The shear wave velocity structure in Bam city is estimated in this paper. A double circle array observation of microtremors was conducted in south-east of Bam. Spatial Auto-correlation Coefficient (SPAC) method was utilized to determine phase velocity dispersion curve of Rayleigh wave in frequency range ...  Read More

Original Research Paper
Effect of Diameter and Density of Willow Roots on Shear Resistance of Soils

M. H. Davoudi; M. Fatemi Aqda

Volume 18, Issue 71 , January 2009, Pages 143-148

https://doi.org/10.22071/gsj.2010.57003

Abstract
  Stabilization of potentially sliding terraces and natural slopes are of great importance from view point of resident security, environment protection, river engineering and water and soil conversation. Soil reinforcement using tree toots is one of methods being studied by many researchers. Most of them ...  Read More

Original Research Paper
Fluid Inclusion and Mineralogical Studies of the Sharafabad Epithermal Gold Deposit, NW Iran

S. Ebrahimi; Y. Pan; S. Alirezaei; M. Mehrpartou

Volume 18, Issue 71 , January 2009, Pages 149-154

https://doi.org/10.22071/gsj.2010.57004

Abstract
  The Sharafabad auriferous epithermal vein system is located in the Alborz-Azarbaijan magmatic assemblage in northwestern Iran. The veins are hosted by Eocene andesitic volcanic and pyroclastic rocks and tuffs. Wall rock alteration includes an inner silicic zone often bordered by argillic and propylitic ...  Read More

Original Research Paper
The Effect of GPS Stations Distances from Fault Trace in the Estimation Accuracy of Fault Parameters

L. Karimi Dehkordi; B. Vosoughi; Y. Djamour

Volume 18, Issue 71 , January 2009, Pages 155-159

https://doi.org/10.22071/gsj.2010.57005

Abstract
  In this study work the idea of the optimal design of GPS monitoring network is extended in order to estimate the parameters of a single strike slip fault: i.e. slip rate and locking depth. By using some numerical examples, the influence of the GPS station distances from the fault trace has been investigated. ...  Read More

Original Research Paper
Geochemical Behavior of Zinc, Potassium and Sodium in Soils Affected by Acid Rains Related to Sar Cheshmeh Copper Smelter, Rafsanjan

S. M. Mirhosseini; J. Shahabpour; M. H. Farpour

Volume 18, Issue 71 , January 2009, Pages 160-166

https://doi.org/10.22071/gsj.2010.57006

Abstract
  Occurrence of acid rains in the region adjacent to Sar Cheshmeh Copper Smelter, 155 km southwest of Kerman, was established by the measurement of pH of precipitations during 2005 and 2006. This paper deals with the geochemical behavior of Na, K and Zn in the entisols and inceptisols of Sar Cheshmeh region ...  Read More

Original Research Paper
Investigation on Khersan Glacier in Zardkuh, Using Satellite Images

Y. Rezaei; M. J. Valadan Zoej; F. Vaziri

Volume 18, Issue 71 , January 2009, Pages 167-172

https://doi.org/10.22071/gsj.2010.57008

Abstract
  Considering glaciers as a main source of potable water in Iran, their investigations and protection are necessary. It means their parameters such as maximum and minimum altitude, area and perimeter, position of snow line and etc, should be estimated. In a time and expenses point of view, regarding research ...  Read More

Original Research Paper
Kinematic and Geometry of the Taleghan Active Fault: On the Basis of Morphotectonics Studies, (Central Alborz, Iran)

H. Nazari; J-F. Ritz

Volume 18, Issue 71 , January 2009, Pages 173-177

https://doi.org/10.22071/gsj.2010.57011

Abstract
  The Taleghan Fault is located at the southern side of Taleghan valley in Central Alborz, 50 km north west of the Tehran mega city. Usually described as a south-dipping reverse fault, it could be the source of some of the strongest historical earthquakes recorded in the Tehran region, notably the 958 ...  Read More