Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
Delineation of Alteration Zones Based on Wavelet Neural Network (WNN) and Concentration–Volume (C-V) Fractal Methods in the Hypogene Zone of Porphyry Copper Deposit, Shahr-e-Babak District, SE Iran

B. Shokouh Saljoughi; A. Hezarkhani

Volume 11, Issue 4 , October 2020, , Pages 1173-1190

https://doi.org/10.22044/jme.2020.10079.1944

Abstract
  In this paper, we aim to achieve two specific objectives. The first one is to examine the applicability of wavelet neural network (WNN) technique in ore grade estimation, which is based on integration between wavelet theory and Artificial Neural Network (ANN). Different wavelets are applied as activation ...  Read More

Environment
Delineation of alteration zones based on artificial neural networks and concentration-volume fractal methods in the hypogene zone of porphyry copper-gold deposit, Masjed-Daghi, East Azerbaijan Province, Iran

H. Nikoogoftar; A. Hezarkhani

Volume 10, Issue 4 , October 2019, , Pages 883-901

https://doi.org/10.22044/jme.2019.7948.1663

Abstract
  In this paper, we aim to achieve two specific objectives. The first one is to examine the applicability of the Artificial Neural Networks (ANNs) technique in ore grade estimation. Different training algorithms and numbers of hidden neurons are applied to estimate Cu grade of borehole data in the hypogene ...  Read More

Geostatistical estimation to delineate oxide and sulfide zones using geophysical data; a case study of Chahar Bakhshi vein-type gold deposit, NE Iran

H. Azmi; P. Moarefvand; A. Maghsoudi

Volume 10, Issue 3 , July 2019, , Pages 679-694

https://doi.org/10.22044/jme.2019.7941.1661

Abstract
  Delineation of oxide and sulfide zones in mineral deposits, especially in gold deposits, is one of the most essential steps in an exploration project that has been traditionally carried out using the drilling results. Since in most mineral exploration projects there is a limited drilling dataset, application ...  Read More

Exploitation
Application of fractal modeling to delineate alteration zones and lithological units in Masjed-Daghi Cu-Au porphyry deposit, NW Iran

H. Nikoogoftar Safa; A. Hezarkhani

Volume 10, Issue 2 , April 2019, , Pages 339-356

https://doi.org/10.22044/jme.2018.7071.1550

Abstract
  In this paper, we aim to present a quantitative modeling for delineating the alteration zones and lithological units in the hypogene zone of Masjed-Daghi Cu-Au porphyry deposit (NW Iran) based on the drill core data. The main goal of this work is to apply Ordinary Kriging (OK) and concentration-volume ...  Read More

Exploitation
Investigation of linear and non-linear estimation methods in highly-skewed gold distribution

H. Rahimi; O. Asghari; F. Hajizadeh; F. Meysami

Volume 9, Issue 4 , October 2018, , Pages 967-979

https://doi.org/10.22044/jme.2018.7023.1544

Abstract
  The purpose of this work is to compare the linear and non-linear kriging methods in the mineral resource estimation of the Qolqoleh gold deposit in Saqqez, NW Iran. Considering the fact that the gold distribution is positively skewed and has a significant difference with a normal curve, a geostatistical ...  Read More

On the reduction of the ordinary kriging smoothing effect

H. Rezaee; O. Asghari; J.K. Yamamoto

Volume 2, Issue 2 , July 2011, , Pages 102-117

https://doi.org/10.22044/jme.2011.538

Abstract
  A simple but novel and applicable approach is proposed to solve the problem of smoothing effect of ordinary kriging estimate which is widely used in mining and earth sciences. It is based on transformation equation in which Z scores are derived from ordinary kriging estimates and then rescaled by the ...  Read More