Original Research Paper
Evaluation of Gradual Ground Linear Subsidence and Geotechnical Parameters Assessment in the Taleghani Site of Eshtehard

Fereidoun Rezaei; A. Dadsetan

Volume 21, Issue 83 , December 2012, Pages 3-12

https://doi.org/10.22071/gsj.2012.54428

Abstract
  Ground subsidence in eastern part of Eshtehard, built on the alluvial deposits, is linear and gradual. Preparing geological map and profiles; we studied the structural geology of the area. The sort and situation of aquifer, evolution of ground water levels and hydrochemistry were studied and the presence ...  Read More

Original Research Paper
New Structural Evidence of Alborz Fault (North Qom), Evidence for Transfer of Inversion from Central-west Alborz Faults to the Same Oriented Faults in South Alborz

R. Elyaszadeh; M. Mohajjel; B. Farahani; S. R. Jafari

Volume 21, Issue 83 , December 2012, Pages 13-22

https://doi.org/10.22071/gsj.2012.54511

Abstract
  Structural analysis of the NW-SE oriented Alborz fault in north Qom, demonstrates young left-lateral reverse displacement evidence, based on the rake of the striations on young fault planes (45-53). Strong structural evidence exists for its previous right-lateral reverse displacement. Young left-lateral ...  Read More

Original Research Paper
Investigation of Guno Storm and their Effects on Coastlines Geomorphology of Makran Sea use of Remot Sensing

A. R. Salehipour Milani; K. Nezhadafzali; F. Bayatani

Volume 21, Issue 83 , December 2012, Pages 23-32

https://doi.org/10.22071/gsj.2012.54512

Abstract
  The Gunu storm, due to its severe intensity, caused substantial damages to the coasts of Sistan and Baluchestan and Hormozgan provinces. Tropical storms develop in the form of enormous hurricanes which suck the surrounding air towards them. We feel such rapid movement of air as strong winds; In satellite ...  Read More

Original Research Paper
Porosity Assessment of Kangan Gas Formation in South Pars Hydrocarbon Field by Application of Committee Machine Composed of Single Artificial Neural Networks Trained using Regularization Method

A. Kamkar Rouhani; M. Zakeri

Volume 21, Issue 83 , December 2012, Pages 33-40

https://doi.org/10.22071/gsj.2012.54513

Abstract
  In order to obtain more accurate results from application of the method of artificial neural networks, instead of selection of the best network determined by trial and error process, we suitably combine the results of several networks that is called committee machine, to reduce the error, and thus, increasing ...  Read More

Original Research Paper
The Huge Jiroft Landslide: Introduction, Indications and Characteristics

A. Abbasnejad

Volume 21, Issue 83 , December 2012, Pages 41-48

https://doi.org/10.22071/gsj.2012.54514

Abstract
  The huge and historical landslide of Jiroft, being about 53 Km2 in area, is located in 35 Km NW of Jiroft town just adjacent to Jiroft Dam and in coordinates of  28ْ  45َ  to 28ْ  53َ  N and 57ْ  20َ  to 57ْ  30َ  E. This slide which has taken place ...  Read More

Original Research Paper
Using Index Overlay, Fuzzy Logic Method and Analytical Hierarchy Process in order to Determine Au and Cu Potential Targets in North Part of Dali Porphyry Deposit

S. Yousefifar; A. Khakzad; H. Asadi Harooni; M. R. Jafari; M. Vosoughi Abedin

Volume 21, Issue 83 , December 2012, Pages 49-58

https://doi.org/10.22071/gsj.2012.54516

Abstract
  Dali porphyry copper-gold deposit is situated geologically incontact of the Urmieh-Dokhtar magmatic belt and the Sanandaj-Sirjan zone in central of Iran and for the first time this deposit was investigated with using the satellite image processing (TM). In this research, the Northern part of the Dali ...  Read More

Original Research Paper
The Pabdeh-Asmari Boundary Facies in Kuh e-Asmari Section: Evidence for Unconformable Ruplian-Chattian Boundary in Iran

Hadi Amin-Rasouli; Y. Lasemi; M. Ghomashi; S. Zaheri

Volume 21, Issue 83 , December 2012, Pages 59-66

https://doi.org/10.22071/gsj.2012.54517

Abstract
  The uppermost layers of the Pabdeh Formation in Kuh e-Asmari section consist of microbial (tufa and stromatolite) facies interpreted to have been deposited in a lacustrine environment. These deposits are unconformably overlain by basal anhydrite and transitional zone of the Asmari and Pabdeh Formations. ...  Read More

Original Research Paper
Study of Mineralogy and Geochemistry of Manganese Ore and Host Rocks of the Robat Karim Manganese Deposit, Southwest Tehran

Seyed Javad Moghaddasi; Y. Negahban

Volume 21, Issue 83 , December 2012, Pages 67-76

https://doi.org/10.22071/gsj.2012.54518

Abstract
  Robat Karim manganese deposit is located in 7 km northwest of Robat Karim (southwest of Teharan), within northeastern margin of Orumiyeh-dokhtar volcanic belt. Based on regional geology, the studied area is situated in the northern Saveh Eocene volcanic assemblage, composed of rhyolite, trachyte, andesite ...  Read More

Original Research Paper
Fracture System of Kopet-Dagh Fold Belt, NE Bojnurd

F. Ghaemi; F. Ghaemi

Volume 21, Issue 83 , December 2012, Pages 77-86

https://doi.org/10.22071/gsj.2012.54519

Abstract
  The Northern Khorasan is one of important active tectonics area. The main faults are strike slip (dextral and sinistral) and minor faults are thrust faults. Many of thrust faults are older than strike- slip faults and some of them are younger and are active now. It is because of bending of strike-slip ...  Read More

Original Research Paper
Structural Mechanisms of the Quaternary Basalts in Bijar area, west of Iran

G. Maleki; A. Saeedi; M.H. Emami; M. Kheirkhah

Volume 21, Issue 83 , December 2012, Pages 87-96

https://doi.org/10.22071/gsj.2012.54523

Abstract
  In Sanandaj- Sirjan zone a vast outcrops of volcanic  rocks, which founded as high terraces, are covered  the Pre-Quaternany  rocks. The volcanic rocks are appeared in different shapes and morphological features. Based on the Zagros geodynamical evolution, mentioned rocks assumed  ...  Read More

Original Research Paper
Quantifying the Ground Co-Seismic Variations by using high Rate GPS Data, Case Study: San-Simeon Earthquake 2003 Dec. 22 (California- United States of America)

S. Tabibi; M. M. Hossainali; Yahya Djamour

Volume 21, Issue 83 , December 2012, Pages 97-102

https://doi.org/10.22071/gsj.2012.54524

Abstract
  Better understanding of earthquakes primarily requires more accurate dynamic and kinematic models for fault rupture. There are several methods for ground motion detection; each of them has its own advantages and limitations. The processes, needed for the estimation of displacements by the seismic data, ...  Read More

Original Research Paper
A Fuzzy Model to Predict the Uniaxial Compressive Strength and the Modulus of Elasticity of Shemshak Formation Shales

M. Kianpour; M. Sayari; A. Oromiea

Volume 21, Issue 83 , December 2012, Pages 103-110

https://doi.org/10.22071/gsj.2012.54525

Abstract
  The uniaxial compressive strength and modulus of deformability of intact rocks are highly important parameters for rock engineering and engineering geology projects. Because of the difficulty of  measuring these parameters and the need for laboratory equipments for their prediction, indirect methods ...  Read More

Original Research Paper
Biostratigraphy of Mobarak Formation at Valyabad Section , Chalous Road

N. Ranjkesh; Bahaedin Hamdi Hamdi

Volume 21, Issue 83 , December 2012, Pages 111-122

https://doi.org/10.22071/gsj.2012.54526

Abstract
  The Mobarak Formation with 347.5 m, thickness is well exposed  in Valyabad section , at the Karaj - Chalus road . The lower contact with underlying  Laloon Formation is disconformable ,whereas stratigraphic relation to the overlying Dozdeband formation is transitional. According to the lithological  ...  Read More

Original Research Paper
Reducing Atmospheric Water Vapor Effects on the Interferogrametric SAR Products using MERIS-FR and GPS (Case Study: Mashhad subsidence)

S. Adham Khiabani; M. R. Mobasheri; M. J. Valadanzoej; M. Dehghani

Volume 21, Issue 83 , December 2012, Pages 123-128

https://doi.org/10.22071/gsj.2012.54534

Abstract
  SAR interferometry has shown its abilities in measuring the surface deformation in various applications. Atmospheric signals as an important factor affecting the interferometric measurements have temporally uncorrelated and complicated behavior. In this paper, a model based on the error source is presented ...  Read More

Original Research Paper
The Determining of the Nature of Magmatic Encalves in Granites of Malayer Plutonic Complex based on Geochemical and Statistical Methods

R. Deevsalar; M. V. Valizadeh; V. Ahadnejad

Volume 21, Issue 83 , December 2012, Pages 129-140

https://doi.org/10.22071/gsj.2012.54535

Abstract
  Granitic rocks of Malayer plutonic complex contain varieties of enclaves with different shapes, sizes, mineralogy andchemical composition. The interpretation of bivariant geochemical diagrams of major oxides and trace elements  with respect to higher values of some of oxides such as MnO, TiO2, MgO, ...  Read More

Original Research Paper
Petrogenesis Geochemistry and Role of Deformation on Ore Elements Distribution of Barika Ggold-Rich Massive Sulfide Deposit, East of Sardasht, Northwest of Sanandaj – Sirjan Zone.

H. A. Tajeddin; E. Rastad; A. Yagoubpour; M. Mohajjel

Volume 21, Issue 83 , December 2012, Pages 141-156

https://doi.org/10.22071/gsj.2012.54536

Abstract
  Barika deposit is the first and only recognized gold (and silver) rich – massive sulfide deposit in Iran which is located at 18 km east of Sardasht city, north western part of Sanandaj-Sirjan metamorphic zone. Rock units outcropped in this area are volcano sedimentary metamorphosed rocks in green ...  Read More

Original Research Paper
Biostratigraphy of Oligocene and Lower Miocene Sediments (Pabdeh, Asmari, Gachsaran and Mishan Formations) on the basis of Foraminifera in Southwest Jahrum, Interior Fars

J. Daneshian; D, Baghbani; S.A. Aghanabati; N. Norouzi

Volume 21, Issue 83 , December 2012, Pages 157-166

https://doi.org/10.22071/gsj.2012.54538

Abstract
  Oligocene-Lower Miocene sediments at Nareh section, situated in SW Jahrum consists of limestone, argillaceous limestone, marl and evaporatic sediments with a rich association of planktonic and benthonic foraminifera. In lower part of this succession, the Pabdeh sediments with a thickness of 115m is composed ...  Read More

Original Research Paper
Hydrocarbon Potential Evaluation of Gadvan Formation by Using ∆LogR Method in South Pars Field

M. A. Oladzad Abbas Abadi; B. Movahed

Volume 21, Issue 83 , December 2012, Pages 167-174

https://doi.org/10.22071/gsj.2012.54540

Abstract
  Hydrocarbon potential Evaluation of formations by using ∆logR method (a method based on separation of well logging of porosity DT/CN./RHOB) and resistivity well logging (Rt). This method has been today applied as an appropriate method in many of famous wells of the world. The beginning of these methods ...  Read More

Original Research Paper
Petrography and Geochemistry of Boket Residual Ores, NE Ajabshir, East-Azarbaijan Province, Iran

H. Khalilzadeh; A. A. Calagari; A. Abedini; H. Rahimpour-Bonab

Volume 21, Issue 83 , December 2012, Pages 175-184

https://doi.org/10.22071/gsj.2012.54541

Abstract
  Boket residual horizon is located in ~15 km northeast of Ajabshir, East-Azarbaijan province. This horizon was developed as stratiform lenses along the contact of Ruteh (middle-upper Permian) and Elika (Triassic) carbonate formations. The ores within this horizon display pelitomorphic, micro-granular, ...  Read More

Original Research Paper
Facies Analysis and Environmental Interpretation of Planolites and Palaeophycus Trace Fossils from Paleozoic Sediments of Mid-Iran Zone

A. Bayat Gol; N. Abbassi; A. Mahboubi; R. Moussavi-Harami; H. Amin Rasouli

Volume 21, Issue 83 , December 2012, Pages 185-196

https://doi.org/10.22071/gsj.2012.54543

Abstract
  Some of Paleozoic sediments from Alborz and Central Iran subzones from Mid-Iran zone evaluated for distinction of Palaeophycus and Planolites ichnofossils. These sediments include Shale Member of Lalun Formation, Shirgesht Formation, member 5 of Mila Formation and Geiroud Formation.  A diverse ichnofauna  ...  Read More

Original Research Paper
Trophic Habitats and Paleoecology of Marine Gastropods from the Bakhtiari Succession (Shalamzar Area, Central-Western Iran)

A. H. Rahiminejad; M. Yazdi; A. R. Ashouri

Volume 21, Issue 83 , December 2012, Pages 197-210

https://doi.org/10.22071/gsj.2012.54545

Abstract
  Shallow marine gastropod assemblages of the recently discovered marine sequence of the Bakhtiari clastic succession in the Zagros Basin are studied in the Shalamzar area. The systematic studies of the fauna yielded 21 genera and 9 species of gastropods from 20 families distributed in 7 facies. The molluscs ...  Read More

Original Research Paper
Estimation of Tectonic Slip Rate of Northern Band of Tehran by using GPS

Yahya Djamour; S. Hashemi Tabatabaei; M. Sedighi; H. R. Nankali

Volume 21, Issue 83 , December 2012, Pages 211-218

https://doi.org/10.22071/gsj.2012.54547

Abstract
  In previous decades, using traditional geodetic observations such as distance and angle measurements was prevalent in the earth surface displacement studies. After accessing to satellite positioning systems with a high precision ability such as GPS, we encountered to an upheaval in the earth surface ...  Read More

Original Research Paper
Organic Matter Characterization and Thermal Modeling of the Basal Black Shale from the Shemshak Group (Upper Triassic- Middle Jurassic) in the Tazareh Section, Eastern Alborz, Northern Iran

Ali Shekarifard; F. Baudin; K. Seyed-Emami; J. Schnyder; H. Rahimpour-Bonab

Volume 21, Issue 83 , December 2012, Pages 219-228

https://doi.org/10.22071/gsj.2012.54549

Abstract
  Geochemical characteristics (Rock-Eval pyrolysis and elemental analysis of kerogen), palynofacies and organic petrography (using light transmitted-reflected-uv microscopy) of the basal black shale from the Shemshak Group (Upper Triassic- Middle Jurassic) in the Tazareh section (Eastern Alborz) have been ...  Read More

Original Research Paper
Plant Macrofossils from Tiar Area, South Amol, Dating and Correlation with the other Florizone of Iran

F. Vaez Javadi

Volume 21, Issue 83 , December 2012, Pages 229-237

https://doi.org/10.22071/gsj.2012.54551

Abstract
  There is a well-preserved plant macrofossils florizone near the Tiar village, south Amol, Central Alborz, Iran. It contains abundant plant maccrofossils belonging to 9 taxa of various orders, such as Equisetales, Filicales, Bennettitales, Cycadales, Ginkgoales and Coniferales. Based on the occurrence ...  Read More