Application of concentration-volume fractal method in induced polarization and resistivity data interpretation for Cu-Mo porphyry deposits exploration, case study: Nowchun Cu-Mo deposit, SE Iran

Abstract. The aim of this study is the utilization of the concentration-volume (C-V) fractal method based on geoelectrical data including induced polarization (IP) and resistivity (RS) in targeting areas hosting different sulfidic mineralization zones in Nowchun Cu-Mo porphyry deposit, SE Iran. The C-V fractal model employed in this research in order to separate high and moderate sulfidic zones from low sulfidic zone and barren wall rocks in the deposit is corresponding to chargeability and resistivity. Results obtained from the C-V method indicate that there is a positive correlation between subsurface mineralization and sulfide mineralized zones; additionally, use of the C-V method based on geophysical data is recognized as an accurate approach for delineation of various mineralization zones in the depth for optimization of mineral exploration operation, particularly in porphyry deposits.

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Application of Number-Size (N-S) Fractal Model to Quantify of the Vertical Distributions of Cu and Mo in Nowchun Porphyry Deposit (Kerman, Se Iran) / Zastosowanie modelu fraktalnego n-s (liczba-rozmiar) do ilościowego określenia pionowego rozkładu Cu i Mo w złożu porfirowym (Kerman, Iran)

Archives of Mining Sciences ◽

10.2478/amsc-2013-0006 ◽

2013 ◽

Vol 58 (1) ◽

pp. 89-105 ◽

Cited By ~ 2

Author(s):

Lili Daneshvar Saein ◽

Iraj Rasa ◽

Nematolah Rashidnejad Omran ◽

Parviz Moarefvand ◽

Peyman Afzal ◽

...

Keyword(s):

Vertical Distribution ◽

Mineral Exploration ◽

Fractal Model ◽

Skewed Distribution ◽

Threshold Values ◽

Multimodal Distribution ◽

Porphyry Deposit ◽

Vertical Distributions ◽

The Vertical Distribution

Determination of the vertical distribution of geochemical elemental concentrations is of fundamental importance in mineral exploration. In this paper, eight mineralized boreholes from the Nowchun Cu-Mo porphyry deposit, SE Iran, were used to identify of the vertical distribution directional properties of Cu and Mo values using number-size (N-S) fractal model. The vertical distributions of Cu and Mo in the mineralized boreholes show a positively skewed distribution in the former and a multimodal distribution in the latter types. Elemental threshold values for the mineralized boreholes were computed by fractal model and compared with the statistical methods based on the data obtained from chemical analysis of samples. Elemental distributions are not normal in these boreholes and their median equal to Cu and Mo thresholds. The results of N-S fractal analysis reveal that Cu and Mo values in mineralized boreholes are multifractals in nature. There are at least three geochemical populations for Cu and Mo in the boreholes and Cu and Mo thresholds have ranges between 0.07%-0.3% and 50-200 ppm, respectively. The results obtained by N-S fractal model were compared with geological observations in the boreholes. Major Cu and Mo enrichment correlated by monzonitic rocks and high amounts of observed Cu and Mo ores (Chalcopyrite and molybdenite) in the boreholes.

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Effective-medium inversion of induced-polarization data for mineral exploration and mineral discrimination: Case study for the copper deposit in Mongolia

10.1190/segam2016-13847378.1 ◽

2016 ◽

Author(s):

Michael Zhdanov ◽

Masashi Endo ◽

Vladimir Burtman ◽

Martin Cuma ◽

Leif Cox ◽

...

Keyword(s):

Mineral Exploration ◽

Copper Deposit ◽

Induced Polarization ◽

Effective Medium ◽

Polarization Data

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Study on Multifunctional Electromagnetic Prospecting Technology in Mineral Exploration

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.734-737.178 ◽

2013 ◽

Vol 734-737 ◽

pp. 178-182

Author(s):

Jian Hua Li ◽

Pin Rong Lin ◽

Bao Li Xu ◽

Qing Kui Meng ◽

Dang Li

Keyword(s):

Mineral Exploration ◽

Geological Structure ◽

Induced Polarization ◽

Magnetotelluric Sounding ◽

Basic Principles ◽

Detection Depth ◽

The Time Domain ◽

Polarization Phase ◽

Made In

Multifunctional electromagnetic prospecting technology, include the time domain induced polarization (TDIP), the artificial source phase induced polarization(RPIP), the natural field audio magnetotelluric sounding(AMT), Controlled source audio magnetotelluric sounding(CSAMT),etc. They form a kind of multi-parameter electromagnetic prospecting technology from shallow to deep. The method have characteristics such as high-resolution, diversified-means, bigger-detection-depth etc, can obtain the electrical parameters of apparent resistivity, apparent polarization, phase, so it can reflect the electrical characteristics of the geological structure and rock & ore to provide information for deep or concealed mine. This overview just summarized achievements made in methods and techniques, basic principles, technical characteristics, applications cope and conditions, case study and results, in hope of giving some guidance for metallic ore exploration.

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