Uncertainty-volume fractal model for delineating copper mineralization controllers using geostatistical simulation in Nohkouhi volcanogenic massive sulfide deposit, Central Iran

The aim of this study was to delineate copper mineralization controllers in Nohkouhi volcanogenic massive sulfide (VMS) deposit by using geostatistical and fractal simulation. In this study, concentration-volume (C-V) fractal model has been used to indicate various copper populations related to diff...

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Main Authors: Saeid HAJSADEGHI, Omid ASGHARI, Mirsaleh MIRMOHAMMADI, Peyman AFZAL, Seyed Ahmad MESHKANI
Format: Article
Language:English
Published: General Directorate of Mineral Research and Exploration 2020-04-01
Series:Bulletin of the Mineral Research and Exploration
Subjects:
Online Access:http://dergipark.org.tr/tr/pub/bulletinofmre/issue/42676/495753?publisher=mta
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author Saeid HAJSADEGHI
Omid ASGHARI
Mirsaleh MIRMOHAMMADI
Peyman AFZAL
Seyed Ahmad MESHKANI
author_facet Saeid HAJSADEGHI
Omid ASGHARI
Mirsaleh MIRMOHAMMADI
Peyman AFZAL
Seyed Ahmad MESHKANI
author_sort Saeid HAJSADEGHI
collection DOAJ
description The aim of this study was to delineate copper mineralization controllers in Nohkouhi volcanogenic massive sulfide (VMS) deposit by using geostatistical and fractal simulation. In this study, concentration-volume (C-V) fractal model has been used to indicate various copper populations related to different host rocks and copper minerals. Accordingly, uncertainty-volume (U-V) fractal model was applied to probability values achieved through sequential indicator simulation (SIS). Copper ores of Nohkouhi deposit including chalcopyrite and malachite were simulated in 30 realizations. The U-V fractal model obtained by using a probability map was divided into four probability zones (high, moderate, low, and very low) for copper minerals. Furthermore, copper grades were simulated for 10 times by sequential Gaussian simulation (SGS). Combination of C–V and U-V fractal modeling resulted in a hybrid method which could be properly employed to determinate various mineralization zones based on the relationship between quantitative (e.g.copper grade) and qualitative (e.g. copper minerals) variables. Moreover, integrating the results of C–V and U-V fractal modeling with the most frequent occurrence of rock type modeling helps identify copper mineralization controllers in a VMS deposit.
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spelling doaj.art-10f734c3f5c24025a60f2f691781ebf52023-02-15T16:20:42ZengGeneral Directorate of Mineral Research and ExplorationBulletin of the Mineral Research and Exploration0026-45632020-04-0116116111110.19111/bulletinofmre.49575376Uncertainty-volume fractal model for delineating copper mineralization controllers using geostatistical simulation in Nohkouhi volcanogenic massive sulfide deposit, Central IranSaeid HAJSADEGHIOmid ASGHARIMirsaleh MIRMOHAMMADIPeyman AFZALSeyed Ahmad MESHKANIThe aim of this study was to delineate copper mineralization controllers in Nohkouhi volcanogenic massive sulfide (VMS) deposit by using geostatistical and fractal simulation. In this study, concentration-volume (C-V) fractal model has been used to indicate various copper populations related to different host rocks and copper minerals. Accordingly, uncertainty-volume (U-V) fractal model was applied to probability values achieved through sequential indicator simulation (SIS). Copper ores of Nohkouhi deposit including chalcopyrite and malachite were simulated in 30 realizations. The U-V fractal model obtained by using a probability map was divided into four probability zones (high, moderate, low, and very low) for copper minerals. Furthermore, copper grades were simulated for 10 times by sequential Gaussian simulation (SGS). Combination of C–V and U-V fractal modeling resulted in a hybrid method which could be properly employed to determinate various mineralization zones based on the relationship between quantitative (e.g.copper grade) and qualitative (e.g. copper minerals) variables. Moreover, integrating the results of C–V and U-V fractal modeling with the most frequent occurrence of rock type modeling helps identify copper mineralization controllers in a VMS deposit.http://dergipark.org.tr/tr/pub/bulletinofmre/issue/42676/495753?publisher=mtanohkouhi copper depositsequential gaussian simulationsequential indicator simulationconcentration–volume fractal modelinguncertainty-volume fractal modelingvolcanogenic massive sulfide
spellingShingle Saeid HAJSADEGHI
Omid ASGHARI
Mirsaleh MIRMOHAMMADI
Peyman AFZAL
Seyed Ahmad MESHKANI
Uncertainty-volume fractal model for delineating copper mineralization controllers using geostatistical simulation in Nohkouhi volcanogenic massive sulfide deposit, Central Iran
Bulletin of the Mineral Research and Exploration
nohkouhi copper deposit
sequential gaussian simulation
sequential indicator simulation
concentration–volume fractal modeling
uncertainty-volume fractal modeling
volcanogenic massive sulfide
title Uncertainty-volume fractal model for delineating copper mineralization controllers using geostatistical simulation in Nohkouhi volcanogenic massive sulfide deposit, Central Iran
title_full Uncertainty-volume fractal model for delineating copper mineralization controllers using geostatistical simulation in Nohkouhi volcanogenic massive sulfide deposit, Central Iran
title_fullStr Uncertainty-volume fractal model for delineating copper mineralization controllers using geostatistical simulation in Nohkouhi volcanogenic massive sulfide deposit, Central Iran
title_full_unstemmed Uncertainty-volume fractal model for delineating copper mineralization controllers using geostatistical simulation in Nohkouhi volcanogenic massive sulfide deposit, Central Iran
title_short Uncertainty-volume fractal model for delineating copper mineralization controllers using geostatistical simulation in Nohkouhi volcanogenic massive sulfide deposit, Central Iran
title_sort uncertainty volume fractal model for delineating copper mineralization controllers using geostatistical simulation in nohkouhi volcanogenic massive sulfide deposit central iran
topic nohkouhi copper deposit
sequential gaussian simulation
sequential indicator simulation
concentration–volume fractal modeling
uncertainty-volume fractal modeling
volcanogenic massive sulfide
url http://dergipark.org.tr/tr/pub/bulletinofmre/issue/42676/495753?publisher=mta
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