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 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Exploration and Mining
Use of the Gray Wolf Optimizer algorithm in separating anomalies from the background, Case study: Alut area

Kamran Mostafaei; Mohammadnabi Kianpour; Mahyar Yousefi

Articles in Press, Corrected Proof, Available Online from 21 June 2024

https://doi.org/10.22071/gsj.2023.401546.2094

Abstract
  This article is devoted to introducing a novel application of the Gray Wolf Optimizer in one of the most challenging issues related to mineral exploration, anomaly separation from the background in stream sediment geochemical studies. The Alut geological sheet, located in the Sanandaj-Sirjan zone, which ...  Read More

Exploration and Mining
Recovery of nickel from low-grade and high-grade arsenide (nickel) deposits based on comparing the performance of chemolithotrophic and heterotrophic bacteria and investigating the effect of different types of additives

zohreh boroumand; Hadi Abdollahi; Reza Shahbazi; Shabnam Asl Pashaki; MirSaleh MirMohamadi

Articles in Press, Corrected Proof, Available Online from 21 June 2024

https://doi.org/10.22071/gsj.2023.406372.2100

Abstract
  Microbial-leaching of nickel from two arsenide ores (low- and high-grade samples) was precisely investigated. The microbial leaching of nickeline was accomplished with the admixture of mesophilic cultures in shake flasks with pulp densities of 0.5, 1, and 5% as well as 0.5, 1, and 3% respectively. The ...  Read More

Exploration and Mining
Using U-spatial statistics method to identify and classify intensity of geochemical anomalies in the Neysian area

Amir Salimi; Samaneh Barak; Mahyar Yousefi

Articles in Press, Corrected Proof, Available Online from 22 September 2024

https://doi.org/10.22071/gsj.2023.409411.2104

Abstract
  An accurate threshold value makes a precise geochemical separation into anomaly and background areas. The threshold assignment using structural methods are preferred to non-structural methods. In this research, the U-spatial statistics, a structural based method, was used to study soil type geochemical ...  Read More

Exploration and Mining
Inverse modeling of Magnetic and IP/RS data for exploration of Northern Dalli Copper-Gold porphyry deposit

Keytash Moshtaghian; Seyed Mohammad Abtahi Forooshani; Hooshang Asadi Harooni; Mohammad Hajheidari; Ghazal Janghorban

Volume 32, Issue 3 , September 2022, , Pages 79-92

https://doi.org/10.22071/gsj.2021.272272.1886

Abstract
  The Dalli porphyry Copper-Gold deposit consists of two northern and southern indexes located on the Urmia-Dokhtar Volcanic Belt in Markazi province.  Due to the presence of magnetite beneath the potassic alteration zone in the center of porphyry mineralization, a magnetometric survey was performed ...  Read More

Exploration and Mining
Evaluation of rotary drilling rate in limestones based on brittleness indices

Amin Jamshidi

Volume 31, Issue 3 , December 2021, , Pages 1-8

https://doi.org/10.22071/gsj.2021.237778.1813

Abstract
  Accurate estimation of the rotary drilling rate of the rock can save time and cost on exploration operations of the geotechnical projects such as dams, tunnels, oil and gas wells and building stone mines. In this study, the rotary drilling rate in limestone is estimated based on brittleness indices. ...  Read More

Exploration and Mining
Investigating physical, mechanical and crack properties of granite in the fatigue process

Shahram Ghasemi; Mashalah Khamehchiyan; Mohammad Reza Nikudel; Ahmad Zalooli

Volume 31, Issue 2 , September 2021, , Pages 1-10

https://doi.org/10.22071/gsj.2020.221737.1765

Abstract
  Joints and cracks are an integral part of rock structures. When load applied to these structures, growth, and interaction of the cracks lead them to failure. This aspect is particularly crucial in cyclic loading because failure occurs at stress levels lower than the yield point due to the fatigue process. ...  Read More

Exploration and Mining
Evaluation of Relation between Sedimentary Rocks Age and Durability of Them in Deteriorate Environments

Iraj Rahmani; Erfan Sadeghi; Mohammad Reza Nikoodel

Volume 31, Issue 1 , June 2021, , Pages 187-198

https://doi.org/10.22071/gsj.2020.224788.1777

Abstract
  Sedimentary rocks are the most common rocks exposed on the Earth’s surface and most of the civil structures are located on them, so the identification of these rocks have great importance. This recognition is more important in destructive environments such as beaches. One of the most important ...  Read More

Exploration and Mining
The subsurface development and geological and geotechnical characteristics of coarse-grained sediments of Zayandeh rood river in Isfahan city

Mojtaba mohammadi; Seyed Mahmoud Fatemi Aghda; Mehdi talkhablou; َAkbar Cheshomi

Volume 30, Issue 117 , December 2020, , Pages 231-242

https://doi.org/10.22071/gsj.2020.208126.1720

Abstract
  Description and Understanding the sedimentary environment helps a lot in the initial estimation of the engineering properties of materials and planning of geotechnical studies. Most of the quaternary sediments (coarse and fine grained) of the Isfahan city were deposited by the Zayandehrood river. Understanding ...  Read More

Exploration and Mining
Estimation of the quality of limestone rocks in some section of the Zagros mountains using seismic wave velocity

Mehdi Talkhablou; Mehdi Kianpour; Seyed Mahmoud Fatemi Aghda

Volume 29, Issue 116 , August 2020, , Pages 61-70

https://doi.org/10.22071/gsj.2019.161053.1584

Abstract
  In this study, the efficiency of the compressive wave velocity (Vp) geophysical method for predicting the quality of limestone mass in areas of Zagros formation, has been investigated. For qualitative classification of limestone rock masses, the Q classification system and its modified classification ...  Read More

Exploration and Mining
Selection of a subway excavation method using AHP and TOPSIS

Hassan Bakhshandeh Amnieh; Amirhossein Rostami; Kurosh Shahriar; Hamid Chakeri; Masoud Cheraghi Seifabad

Volume 29, Issue 116 , August 2020, , Pages 121-124

https://doi.org/10.22071/gsj.2019.99088.1265

Abstract
  When a tunnel passes through weak soil with different conditions, or there is a thin layer of soil on top of the tunnel, the mass of soil or rock must be stabilized. In addition, an excavation method must be chosen and applied in order to control the amount of subsidence and convergence which are among ...  Read More

Exploration and Mining
The effect of joint density on P-wave velocity

Yaghoob Zarei; Ali Uromeihy; MohammadReza Nikoodel

Volume 29, Issue 115 , June 2020, , Pages 151-162

https://doi.org/10.22071/gsj.2019.151144.1546

Abstract
  In this labratory study, the effect of joint density (number and spacing) on the pressure wave velocity was researched in pyroclastic rocks. After determining the physical properties, the P-wave velocities of intact rock samples were measrued. Then, an artificial joint perpendicular to the measuring ...  Read More

Exploration and Mining
Potassic and Phyllic Alteration Zoning Based on the Results of 3D Modeling of Fluid Inclusion Data by Artificial Neural Networks

Maliheh Abbaszadeh; Ardeshir Hezarkhani; Saeed Soltani-Mohammadi

Volume 29, Issue 113 , November 2019, , Pages 115-122

https://doi.org/10.22071/gsj.2018.104239.1301

Abstract
  In recent years, economic geology studies have become very popular method in mineral exploration studies. Modeling fluid inclusion data is one of the common studies in economic geology. In this research artificial neural networks method, as one of the machine learning algorithms, is used for three-dimensional ...  Read More

Exploration and Mining
Application of geometric average approach for Cu-porphyry prospectivity mapping in the Baft area, kerman

Saeid Ghasemzadeh; Abbas Maghsoudi; Mahyar Yousefi

Volume 29, Issue 113 , November 2019, , Pages 231-130

https://doi.org/10.22071/gsj.2018.116787.1398

Abstract
  The Baft district in Kerman province is located in the southeastern segment of the Urumieh-Dokhtar magmatic arc. This arc is characterized by thick accumulations of Cenozoic plutonic and volcanic rocks and provide favorable conditions to the development of hydrothermal systems and mineral deposition, ...  Read More

Exploration and Mining
Applying fractal models to delineation of rock quality designation in the Zarshuran gold deposit, Takab, Iran

Ghodratollah Rostami Paydar; Hani Asadi Hoveizian

Volume 28, Issue 111 , May 2019, , Pages 151-160

https://doi.org/10.22071/gsj.2018.78009.1056

Abstract
  Determination of relationship between rock mass properties concerning to rock qualification design (RQD) has an important role in mine planning and designation. The aim of this study is separation of rock mass properties to designing the mine planning based on the 3267 RQD data analysis of 43 drill-core ...  Read More

Exploration and Mining
Estimation of water seepage from Azad dam foundation using multivariated geostatistic and comparison with observed flow

Ali Aalianvari; Saeed Soltani-Mohammadi; Maryam Miri

Volume 28, Issue 111 , May 2019, , Pages 195-202

https://doi.org/10.22071/gsj.2018.112706.1363

Abstract
  The main objective of this paper is to estimate water seepage from the Azad dam foundation, based on the combined geotechnical investigations and multivariate geostatistical methods. Geological filed investigations and records at the 38 exploratory boreholes have been considered as the main source for ...  Read More

Exploration and Mining
Evaluation on the Role of Grouting Pressure in Filtration of Cement- based Grouts According to Examples of Soft Rocks

Mohammad Hassan Nazari; A. Uromeihy

Volume 28, Issue 110 , December 2018, , Pages 89-96

https://doi.org/10.22071/gsj.2017.89420.1159

Abstract
  There are several outstanding factors engaged in the cement grouts filtration. These factors can be evaluated from some aspects including the characteristics of the grout, cement and grouting materials, grouting environment, interaction between the grout and environment and grouting pressure among which ...  Read More

Exploration and Mining
The effect of the underground water on production costs and mining operation in open-pit mines, Case Study: Sarcheshmeh Copper Mine

Ayyub Nikkhah; Mohammad Taji

Volume 28, Issue 110 , December 2018, , Pages 267-272

https://doi.org/10.22071/gsj.2018.88841.1144

Abstract
  In open pit mines, the extraction of ore rock with minimum price and good quality is the most important mining goal. In this paper, the impact of underground water on production costs and mining process has been investigated. For this purpose, the parameter specific crushing(S_cr ), measured and used. ...  Read More

Exploration and Mining
Subsidence prediction for twin tunnels using empirical formula – A case study: Isfahan, Iran.

H. Bakhshandeh Amnieh; Amirhossein Rostami; Kurosh Shahriar; Hamid Chakeri; Masoud Cheraghi Seifabad

Volume 28, Issue 109 , September 2018, , Pages 3-6

https://doi.org/10.22071/gsj.2017.97965.1253

Abstract
  Abstract In the urban tunneling project, one of the most important parameters to be considered is the subsidence level. Metro tunnels are one of the most important urban transportation infrastructures. Due to shallow depth of drilling, the most important factors to prevent the maximum subsidence and ...  Read More

Exploration and Mining
Application of geostatistical studies for Identification of Au-Cu-Fe-W Anomalies in the Sehezar Valley of Tonekabon – Northern Iran.

Meysam Yazdani; Firouz Alinia

Volume 28, Issue 109 , September 2018, , Pages 83-96

https://doi.org/10.22071/gsj.2017.91602.1188

Abstract
  Sehezar area is located in southern city of Tonokabon in Mazandaran province in north of Iran, and near the Tarom – Hashtjin belt. The existence of granitoid masses in the region can be important in terms of the potential of mineralization. The kriging geostatistical technique is used to predict ...  Read More

Exploration and Mining
Evaluation of the effect of adding lime to shear strength parameters of clay- geosynthetic interface

Nazanin Mahbubi Motlagh; Ahmad-Reza Mahboubi Ardakani

Volume 27, Issue 108 , September 2018, , Pages 281-292

https://doi.org/10.22071/gsj.2017.81999.1080

Abstract
  There are different methods to improve the technical characteristic of problematic soils. Stabilizing with lime and reinforcing by high tensile strength elements are among the improvement techniques.. The use of geosynthetics to improve the engineering properties of various types of soil is well accepted ...  Read More

Exploration and Mining
Study of the surface dissolution forms and development of groundwater in the part 4 of Ghomroud tunnel site

V. Joudaki; F. Koohiyan-Afzal; A. Aalianvari; R. Ajalloeian; A. Sohrabi-Bidar

Volume 26, Issue 103 , June 2017, , Pages 29-40

https://doi.org/10.22071/gsj.2017.46725

Abstract
  Part 4 of Ghomroud tunnel is located in the Sanandaj-Sirjan geological zone. In this area, due to the existence of numerous faults, crushed zones and significant development of major and minor catchments, the tunnel has been encountered with the risk of groundwater influx. On the other hand, due to some ...  Read More

Exploration and Mining
Evaluation of liquefaction hazard along Line 2 of Rasht Metro by the use of AHP fuzzy method

A. Uromeihy; E. Sadat Razavi; V. Baghri

Volume 26, Issue 103 , June 2017, , Pages 227-236

https://doi.org/10.22071/gsj.2017.46612

Abstract
  Rasht City is capital of Gilan Provence and is considered as one of the metropolitans along the south coast of the Caspian Sea.  In terms of geological setting, the city is situated to the north of the Alborz Mountains and in the Gorgan-Rasht sedimentary zone. The area is characterized by many active ...  Read More