Volume 32 (2022)
Volume 31 (2021)
Volume 30 (2020)
Volume 29 (2020)
Volume 28 (2019)
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 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Original Research Paper Economic Geology
Sulfur isotope variations of sulfide minerals in porphyry systems of the Meiduk cluster, Kerman Cenozoic magmatic arc, southeastern Iran

Hadi Mohammaddoost; Majid Ghaderi; Jamshid Hassanzadeh

Volume 27, Issue 107 , June 2018, Pages 3-16

http://dx.doi.org/10.22071/gsj.2017.75379.1019

Abstract
  Sulfur isotope data on pyrite, chalcopyrite and molybdenite in the A, B and D type veinlets in porphyry systems of the Meiduk cluster, located in northwestern part of the Kerman copper belt, show that these systems have near zero δ34S values. Sulfur isotope composition for the Chah-Firouzeh and ...  Read More

Original Research Paper
Predicting land subsidence rate by estimating aquifer hydraulic parameters, obtained from aquifer-test data and optimization algorithms in the district 19 of Tehran

M. Arjomandi; A. Saremi; A. P. Sarraf; H. Sedghi; M. Roustaei

Volume 27, Issue 107 , June 2018, Pages 17-26

http://dx.doi.org/10.22071/gsj.2018.63740

Abstract
  Groundwater modeling, land subsidence hazards and proper management of groundwater resources of the alluvial aquifer in the district 19 of Tehran, south of Tehran Plain need precise estimation of aquifer hydraulic parameters. Besides, traditional techniques and usual graphical methods have been approximate, ...  Read More

Original Research Paper
Sr-Nd isotopic geochemistry and 40Ar-39Ar and Rb-Sr dating of Ghoshchi A2-type granites, N Uromiyeh, NW Iran

Sh. Shahabi; H. Shafaii Moghadam; Gh. Ghorbani

Volume 27, Issue 107 , June 2018, Pages 27-40

http://dx.doi.org/10.22071/gsj.2018.63747

Abstract
  The Ghoshchi granitic rocks are located in at north of Uromiyeh city and are mainly composed of alkali-feldspar granites, granites and aplitic dykes. These samples belong to calc-alkaline to shoshonitic series and show Fe enrichment and are classified as A-type granites. Ghoshchi granites have high K2O+Na2O, ...  Read More

Calcareous nannofossils biostratigraphy of lower Cretaceous deposits of east of Iran, NW of Qayen (Nimbolook stratigraphic section)

Z. latifi; F. Foroughi; M. Motamedalshariati; S. N. Raeisossadat

Volume 27, Issue 107 , June 2018, Pages 41-50

http://dx.doi.org/10.22071/gsj.2018.63752

Abstract
  Calcareous nannofossils of Nimbolook section in north west of Qayen, east of Iran have been investigated. The section is 164 m thick and consists of limestone, marlstone and shale. Seventy six nannofossil species belong to thirty genera from fifteen families were identified. Based on the identified calcareous ...  Read More

Geochemistry of major, trace and rare earth elements in bed-sediments of Urmia lake

S. Alipour; Kh. Mosavi-ovenlegi; E. Hosseini; Sh. Aslanpour; Z. Haseli

Volume 27, Issue 107 , June 2018, Pages 51-62

http://dx.doi.org/10.22071/gsj.2018.63758

Abstract
  The Urmia Salt Lake as the largest hyper saline lake of the world is located between west and east Azerbaijan provinces, NW Iran. Geochemistry of trace and rare earth elements of bed sediments taken from 25 Cm of the lower most of 1.5 meters depth  of drilled holes in 130 samples between 2014-2015 ...  Read More

Original Research Paper
Petrography and geochemistry of the volcanic rocks in north of Zavieh, southwest of Karaj

M. Ebrahimi; M. Rafiei

Volume 27, Issue 107 , June 2018, Pages 63-74

http://dx.doi.org/10.22071/gsj.2018.63757

Abstract
  Eocene pyroclastic-volcanic rocks, ranging in composition from basic to intermediate and acidic rocks, are widely exposed at north of Zavieh, southwest of Karaj. The pyroclastic-volcanic sequence is composed of basalt, trachy-basalt, basaltic trachy-andesite, andesite, trachy-andesite, trachydacite, ...  Read More

Original Research Paper
Geometric and kinematic analysis and of Derenjal Mountain’s faults, eastern block of Kalmard fault (Central Iran)

R. Samadi Moghadam; R. Nozaem; M. Dehbozorgi; M. Mohajjel

Volume 27, Issue 107 , June 2018, Pages 75-86

http://dx.doi.org/10.22071/gsj.2018.63792

Abstract
  Derenjal Mountains with NE-SW trend, is located in Central Iran, in northwest of Tabas block and in eastern block of Kalmard fault. In this region, the Paleozoic formations (Cambrian to Devonian) have been exposed and surrounded by Neogene and Quaternary deposits. Volcanic rocks of Cambrian limited to ...  Read More

Original Research Paper
Modeling the amplification ratio of sandy soils using two methods of neural network and gene

N. Alidadi; A. Mahdavian

Volume 27, Issue 107 , June 2018, Pages 87-98

http://dx.doi.org/10.22071/gsj.2018.63795

Abstract
  When seismic waves pass through alluvial layers, the seismic wave amplitude increases significantly in some periods, which is known as site amplification. In this case, it can be analyzed with an analytical model of the surface response spectrum Estimates of the input response spectrum. This behavior ...  Read More

Original Research Paper
Mineralization, geochemistry, fluid inclusion and stable isotopes (O, S) studies in the Takht Fe-skarn deposit, NE Hamedan

S. N. Haghighi Bardineh; R. Zarei Sahamieh; H. Zamanian; A. Ahmadi Khalaji

Volume 27, Issue 107 , June 2018, Pages 99-112

http://dx.doi.org/10.22071/gsj.2018.63797

Abstract
  The Takht iron deposit is located 120 km northeast of the Hamedan City in the Urumieh-Dokhtar magmatic belt. The Miocene Takht granodiorite intruded into the Cretaceous carbonates and resulted in Fe-skarn formation. Epigenetic mineralization in the Takht Deposit occurred predominantly as vein and lenticular ...  Read More

Original Research Paper
The comparison of effective variables and methods in water inflow into hard rock tunnels (Case study: Karaj dam-Tehran water conveyance tunnel)

M. Morsali; M. Nakhaie; M. Rezaie; H. R. Naseri; J. Hassanpour

Volume 27, Issue 107 , June 2018, Pages 113-122

http://dx.doi.org/10.22071/gsj.2018.63799

Abstract
  Tehran- Karaj water conveyance tunnel (part 1), 16 kilometers in length, in the Karaj formation was excavated in order to convey the water from the Amir-Kabir dam to the Tehran refinery plant. The hydrogeology studies of the Karaj tunnel were done to discover the affecting parameters on the groundwater ...  Read More

Original Research Paper
Basic magmatism in the extentional back-arc basin of the Lower-Middle Jurassic on the Northern edge of Central Iran-South of Eastern Alborz zones, Shahrood-Damghan

H. Ghasemi; M. Rostami Hossuri; M. Sadeghian

Volume 27, Issue 107 , June 2018, Pages 123-136

http://dx.doi.org/10.22071/gsj.2018.63800

Abstract
  The Lower Jurassic basin of northern margin of central Iran structural zone and south of eastern Alborz in Semnan province, contains igneous rocks with basic composition, belonging to early stages of occurrence and development of an immature extensional back arc basin at this time. These basic igneous ...  Read More

Original Research Paper
Lithostratigraphy and biostratigraphy of the Pabdeh Formation at Chahardeh village section (Izeh zone, Khuzestan province)

N. Hadavandkhani; A. Sadeghi; M. H. Adabi; A. R. Tahmasbi

Volume 27, Issue 107 , June 2018, Pages 137-150

http://dx.doi.org/10.22071/gsj.2018.63802

Abstract
  The Pabdeh Formation with a thickness of 797.2 m. and 4 lithological units (purple shale (144.25 m.), lower limestone and marl (221.75 m.), limestone (73.5 m.) and upper limestone and marl (357.7 m.) is stretched at Chahardeh village stratigraphic section in Izeh zone.. Biostratigraphic studies led to ...  Read More

Original Research Paper
Petrology, geochemistry and mineral chemistry of Parachan intrusive body (North of Karaj)

E. Keshtkar; M. Ghorbani; J. Omrani

Volume 27, Issue 107 , June 2018, Pages 151-164

http://dx.doi.org/10.22071/gsj.2018.63804

Abstract
  A gabbro to monzonite sill is injected into the Karaj tuffs at the north of Parachan village, North of Karaj.. The main minerals of these rocks are plagioclase, pyroxene, K feldspar, olivine and biotite. Clinopyroxene mineral chemistry studies carried out on the intrusive bodies, indicate two types of ...  Read More

Original Research Paper
Lithostratigraphy and biostratigraphy of the Silurian sequence at Robat-e-Qarebil stratigraphic section, based on conodonts

A. Ghaderi; J. Taheri; A. Kerachian; A. Mousavinia

Volume 27, Issue 107 , June 2018, Pages 165-172

http://dx.doi.org/10.22071/gsj.2018.63813

Abstract
  Investigation of Silurian succession equivalent to the Niur Formation at the northwest of Robat-e-Qarebil (instantly south of Western Kopeh-Dagh), is led to introduction of lithostratigraphical units in details and identification of some Llandovery conodonts. The sampled interval in this stratigraphic ...  Read More

Original Research Paper
Using noble metal and mineral chemistry of peridotites in petrogenesis and tectonic setting of Rudan ultramafic complex, Kerman, Southern Iran

A. R. Najafzadeh

Volume 27, Issue 107 , June 2018, Pages 173-184

http://dx.doi.org/10.22071/gsj.2018.63818

Abstract
  The Rudan ultramafic complex with Paleozoic age is located in Southern Kerman province and is composed mainly of massive harzburgite, small to medium sized lenticular dunite and subordinate very thin olivine websterite dykes. Granular and protogranular are the main textures in dunites and harzburgites, ...  Read More

Original Research Paper
The Feasibility of Replacing Precise Levelling with GPS In Iran

H. Mahdizadeh; Y. Djamour

Volume 27, Issue 107 , June 2018, Pages 185-192

http://dx.doi.org/10.22071/gsj.2018.63819

Abstract
  Today, with the use of Global Positioning System (GPS), it is possible to determine the geodetic height (relative to a Reference Ellipsoid) in easy mode with less time and cost. Despite of some advantages for leveling with GPS (GPS/Levelling) relative to traditional leveling, there is an important limitation ...  Read More

Original Research Paper Geophysics
Weight induced-stress of the Gotvand-e Olya reservoir on the Golestan Fault

Mohammad Reza Ebrahimi; Mohammad Tatar

Volume 27, Issue 107 , June 2018, Pages 193-202

http://dx.doi.org/10.22071/gsj.2017.87186.1113

Abstract
  Impoundment of a reservoir and changes in the lake levels can trigger / induce the seismicity. In this research, the strength changes are modeled across the Golestan fault, due to loading effect of Gotvand-e Olya reservoir which is located in the Zagros Mountain of SW Iran. The formulas based on 3D Boussinesq ...  Read More

Original Research Paper
Chromite chemistry as an approach to the origin of the north-east of Hadji Abad ultramafic massif, Hormozgan province

M. SoltaniNezhad; H. Ahmadi Pour; A. Moradian; B. Zaboli Sarvtamin

Volume 27, Issue 107 , June 2018, Pages 203-214

http://dx.doi.org/10.22071/gsj.2018.63824

Abstract
  The Hadji-Abad ultramafic complex is located at the north of Hormozgan province and represents a part of Orzuieh-Dowlat Abad colouredmelange in the northern edge of Zagros thrust. The complex contains harzburgites, lherzolites, dunites and chromitites. Harzburgite is the dominant rock type. Evidence ...  Read More

Original Research Paper
Finite strain analysis and vorticity estimation in the metamorphic rocks around Mashhad

S. Dashti Chandanagh; M. R. Sheikholeslami; J. Taheri

Volume 27, Issue 107 , June 2018, Pages 215-220

http://dx.doi.org/10.22071/gsj.2018.63826

Abstract
  This study was conducted to determine the deformation pattern of the Mashhad metamorphic rocks which results from the convergence between Turan and Central Iran plates and closure of Paleotethys Ocean during Early Cimmerian event. The results of 2D and 3D strain analysis show that the maximum deformation ...  Read More

Original Research Paper
Description and biostratigraphy of the ammonite fauna from the Kazhdumi Formation at Tang-e-Maghar, Northwest of Behbahan (Zagros Basin)

A. Yavari; M. Ghavidel syooki; M. R. Majidifard; S. H. Vaziri

Volume 27, Issue 107 , June 2018, Pages 221-232

http://dx.doi.org/10.22071/gsj.2018.63827

Abstract
  The Kazhdumi Formation is well exposed and accessible in Tang-e Maghar, northwest of  Behbahan city, Zagros basin. In this area, this formation has a thicknees of 344 m and it mainly consists of alternation of black - gray shale with medium – thin-bedded cream – gray argillaceous limestone. ...  Read More

Original Research Paper
Introducing iron mineralization anomaly based on geophysical data in Farash area, Kerman province

B. Sameti; A. Zia Zarif; M. R. Jafari; A. Darvishzadeh

Volume 27, Issue 107 , June 2018, Pages 233-240

http://dx.doi.org/10.22071/gsj.2018.63831

Abstract
  The study area is located in Farash 1:50000 sheet in Kerman province, at a distance of about 50 kilometers from the Jiroft-Darb Behesht road in the Jebalbarez zone. The study area is located in Bam 1:250000 sheet in the Sanandaj-Sirjan structural zone. Rock units include granite, granodiorite and volcano-sedimentary ...  Read More

Original Research Paper
Petrophysical assessment of the Ilam carbonate reservoir by integration of Nuclear Magnetic Resonance (NMR) method and core data in one of the Abadan plain oil fields

E. Asadi Mehmandosti; Sh. Alivand; H. Ghalavand; A. R. Rostami

Volume 27, Issue 107 , June 2018, Pages 241-252

http://dx.doi.org/10.22071/gsj.2018.63834

Abstract
  Nuclear magnetic resonance (NMR) is a test method that has had basic influence on the accuracy of reservoir parameters prediction. In this study, petrophysical properties of the Ilam Formation in one oil field of the Abadan plain were investigated by Nuclear magnetic resonance method, and core analysis ...  Read More

Original Research Paper
Mineral chemistry and petrogenesis of East Nabar skarn, Southwest of Kashan

S. M. Tabatabaei Manesh; F. Javadi; F. S Zohouri2

Volume 27, Issue 107 , June 2018, Pages 253-264

http://dx.doi.org/10.22071/gsj.2018.63836

Abstract
  The Nabar skarn is located about 35 km southwest of Kashan and within the Urumieh- Dokhtar magmatic belt  and is formed along the contact between limestone of Qom formation with a probably middle to upper Miocene intermediate and basic intrusion body. The main minerals forming this skarn are garnet, ...  Read More

Original Research Paper
Dinoflagellate palynostratigraphy of middle Jurassic of the Hojedk Formation, Tabas, Central-East Iran and its correlation to other Palynomorph zones in Iran and elsewhere

F. Vaez-Javadi

Volume 27, Issue 107 , June 2018, Pages 265-276

http://dx.doi.org/10.22071/gsj.2018.63837

Abstract
  Hojedk Formation spreads well through the Tabas Block. Diverse and moderately preserved palynofloras occur in the Middle Jurassic sediments of the formation in south Kouchekali, southwest of Tabas, central-east Iran. The present investigation of the Hojedk Formation has revealed a diverse assemblage ...  Read More

Original Research Paper
Investigating the effects of sedimentary environment and diagenetic processes on the quality of Sarvak reservoir formation within a sequence stratigraphic framework, Kupal Oil Field

Z. Alishavandi; H. Rahimpour-Bonab; A. Kadkhodaei; M. Arian

Volume 27, Issue 107 , June 2018, Pages 277-286

http://dx.doi.org/10.22071/gsj.2018.63844

Abstract
  The Sarvak Formation deposited in the North to Northeastern margin of the Arabian Platform during the Mid-Cretaceous (Albian-Turonian), and is extensively encountered in the Folded Zagros of southwestern Iran. It is the most important reservoir unit after Asmari Formation in Iran. Petrography of microscopic ...  Read More

Original Research Paper
Ore structural, textural, mineralogical and fluid inclusions studies of the Kouh-Kolangeh Zn-Pb-Ba deposit, Malayer- Isfahan metallogenic belt, South Arak, Iran

H. Peernajmodin; E. Rastad; A. Rajabi

Volume 27, Issue 107 , June 2018, Pages 287-302

http://dx.doi.org/10.22071/gsj.2018.63856

Abstract
  The Kouh-Kolangeh carbonate-hosted Zn-Pb-Ba deposit is hosted by Lower Cretaceous detrital-carbonate sequence in the central part of the Malayer-Isfahan metallogenic belt (MEMB) and has been formed within an extensional basin. Ore mineralization occurred as concordant with layering in the upper part ...  Read More