Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
Case Study
Geostatistical simulation of dyke systems in Sungun porphyry copper deposit, Iran

Omid Asghari

Volume 6, Issue 1 , January 2015, Pages 1-10


  Post-mineralization activities may cause difficulties in the process of ore modeling in porphyry deposits. Sungun, NW Iran, is one of the porphyry copper deposits, in which dyke intrusions have made ore modeling more complicated than expected. Among different kinds of dykes, two types were chosen and ...  Read More

Case Study
Selection of new exploration targets using lithogeochemical data obtained for Taknar deposit located in NE of Iran

Kh. Maroufi Naghadehi; A. Hezarkhani; K. Seifpanahi Shabani

Volume 6, Issue 1 , January 2015, Pages 11-20


  Taknar deposit is located about 28 km to the north-west of Bardaskan in the Khorasan-e-Razavi province, which is situated in the north-eastern part of Iran. This deposit is unique, formed within the Taknar formation in the Ordovician time. As a result, it is of much interest to many researchers working ...  Read More

Case Study
Application of artificial neural network and genetic algorithm to modelling the groundwater inflow to an advancing open pit mine

S. Bahrami; F. Doulati Ardejani

Volume 6, Issue 1 , January 2015, Pages 21-30


  In this study, a hybrid intelligent model has been designed to predict groundwater inflow to a mine pit during its advance. Novel hybrid method coupling artificial neural network (ANN) with genetic algorithm (GA) called ANN-GA, was utilised. Ratios of pit depth to aquifer thickness, pit bottom radius ...  Read More

Case Study
Subsurface modeling of mud volcanoes, using density model and analysis of seismic velocity

H.R Baghzendani; H. Aghajani; M. Solimani

Volume 6, Issue 1 , January 2015, Pages 31-39


  Detection of subsurface structures by means of gravity method can be used to determine mass distribution and density contrast of rock units. This distribution could be detected by different geophysical methods, especially gravity method. However, gravity techniques have some drawbacks and can't be always ...  Read More

Case Study
The impact of poor cementing casing damage: A numerical simulation study

M. Hemmatian; B. Tokhmchi; V. Rasouli; R. Gholami

Volume 6, Issue 1 , January 2015, Pages 41-53


  A good knowledge of the parameters causing casing damage is critically important due to vital role of casing during the life of a well. Cement sheath, which fills in the gap between the casing and wellbore wall, has a profound effect on the resistance of the casing against applied loads. Most of the ...  Read More

Case Study
Underground contour (UGC) mapping using potential field, well log and comparing with seismic interpretation in Lavarestan area

M. Fakhrerad; A. Nejati Kalateh; S. Ghomi

Volume 6, Issue 1 , January 2015, Pages 55-62


  Coastal Fars gravimetry project in Fars province was carried out to find the buried salt domes and to determine characteristics of faults in this area. The Lavarestan structure was covered by 4203 gravimetry stations in a regular grid of 1000*250 m. Depth structural model of this anticline made in previous ...  Read More

Case Study
Comparison of golden section search method and imperialist competitive algorithm for optimization cut-off grade- case study: Mine No. 1 of Golgohar

S. Mohammadi; M. Ataei; R. Khalokakaei; E. Pourzamani

Volume 6, Issue 1 , January 2015, Pages 63-71


  Optimization of the exploitation operation is one of the most important issues facing the mining engineers. Since several technical and economic parameters depend on the cut-off grade, optimization of this parameter is of particular importance. The aim of this optimization is to maximize the net present ...  Read More

Case Study
A boundary element analysis of crack-propagation mechanism of micro-cracks in rock-like specimens under a uniform normal tension

H. Haeri; A. R Khaloo; K. Shahriar; M. Fatehi Marji; P. Moaref vand

Volume 6, Issue 1 , January 2015, Pages 73-93


  In this work, the mechanism for fracture of brittle substances such as rocks under a uniform normal tension is considered. The oriented straight micro-cracks are mostly created in all the polycrystalline materials resulting from the stress concentrations. The present work focuses on the interactions ...  Read More

Case Study
Extended finite element simulation of crack propagation in cracked Brazilian disc

M. Eftekhari; A. Baghbanan; H. Hashemolhosseini

Volume 6, Issue 1 , January 2015, Pages 95-102


  The cracked Brazilian disc (CBD) specimen is widely used in order to determine mode-I/II and mixed-mode fracture toughness of a rock medium. In this study, the stress intensity factor (SIF) on the crack-tip in this specimen is calculated for various geometrical crack conditions using the extended-finite ...  Read More

Case Study
Iron leaching from bauxite ore in hydrochloric acid using response surface methodology

soghra salehi; M. Noaparast; S.Z. Shafaei; A. Amini; A. Heidarnia

Volume 6, Issue 1 , January 2015, Pages 103-108


  In this work, hydrochloric acid is used to remove iron impurities in the bauxite ore contained in the diasporite mineral located in the Sari region. The bauxite ore was calcined at different temperatures and times, and then dissolved in a hydrochloric acid solution. After determining the optimum calcination ...  Read More

Case Study
Kinetics of chemical leaching of chalcocite from low-grade copper ore: size-distribution behavior

Hojat Naderi; Mahmoud Abdollahy; Navid Mostoufi

Volume 6, Issue 1 , January 2015, Pages 109-118


  Kinetics of the chemical leaching of chalcocite from a low-grade copper ore in a ferric sulfate medium was investigated using the constrained least square optimization technique. The experiments were carried out for different particle sizes in both the reactor and column at constant Eh, pH, and temperature. ...  Read More

Case Study
A model for predicting dynamic frothability index of dual-frother blends

Hamid Khoshdast; Sasan Mirshekari; Arefeh Zahab-Nazouri

Volume 6, Issue 1 , January 2015, Pages 119-124


  Dynamic frothability index (DFI) is a characteristic of any frother which presents useful information about frothing properties. The objective of this study is to introduce a prediction model for estimation of DFI value of dual-frother blends. Model uses the DFIs of frothers and mole ratio of weaker ...  Read More