Performing the power spectrum-area method to separate anomaly from background for induced polarization data: (a case study; Hamyj copper deposit, Iran)

Enhancement of anomaly plays such a critical role in mineral exploration that this work has been carried out by removed noise in geophysical data. Power spectrum area (S-A) and multifractal singular value decomposition (MSVD) methods are application methods in enhancement of anomaly that are usually used in the geochemical exploration process. However, these methods have not been widely used in the geoelectrical data so far. Hamyj deposit is located about 80 kilometers west of Birjand city, South Khorasan province, Iran. In this area, resistivity and induced polarization data have been surveyed by dipole- dipole array. In this paper, IP data has been inversed by the linear method. Then, enhancement of anomaly IP data has been carried out by S-A and MSVD methods. Results of S-A and MSVD methods were compared with each other. Results indicate that the S-A method has determined the location of anomaly IP data better than the MSVD method.

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Mapping of Landfills Using Time-domain Spectral Induced Polarization Data - The Eskelund Case Study

Near Surface 2011 - 17th EAGE European Meeting of Environmental and Engineering Geophysics ◽

10.3997/2214-4609.20144418 ◽

2011 ◽

Author(s):

G. Fiandaca ◽

E. Auken ◽

A. Gazoty ◽

J. Pedersen ◽

A.V. Christiansen

Keyword(s):

Time Domain ◽

Induced Polarization ◽

Polarization Data ◽

Spectral Induced Polarization

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Application of the singularity mapping technique to identify local anomalies by polarization data (a case study: Hamyj Copper Deposit, Iran)

Acta Geodaetica et Geophysica ◽

10.1007/s40328-015-0112-x ◽

2015 ◽

Vol 50 (3) ◽

pp. 365-374 ◽

Cited By ~ 1

Author(s):

Mohammad Shahi Ferdows ◽

Hamid Reza Ramazi

Keyword(s):

Copper Deposit ◽

Mapping Technique ◽

Polarization Data ◽

Local Anomalies

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The Application of Resistivity and Induced Polarization Methods in Identification of Skarn Alteration Haloes: A Case Study in the Qale-Alimoradkhan Area

Journal of Environmental and Engineering Geophysics ◽

10.2113/jeeg23.3.363 ◽

2018 ◽

Vol 23 (3) ◽

pp. 363-368 ◽

Cited By ~ 2

Author(s):

Seyyed Reza Mashhadi ◽

Hamidreza Ramazi

Keyword(s):

Copper Deposit ◽

Induced Polarization ◽

High Resistivity ◽

Resistivity Sounding ◽

Geological Features ◽

Intrusive Rocks ◽

Hamedan Province ◽

Selection Of ◽

Good Agreement

This paper investigates the capability of the resistivity and induced polarization (IP) methods to delineate skarn alteration haloes within the Qale-Alimoradkhan skarn copper deposit. This deposit is located in the Sanandaj-Sirjan geological and structural zone, Hamedan province, Iran. It is understood that fresh limestone and metamorphosed limy units including skarns represent high resistivity anomalies whereas granodiorite intrusions represent medium to low resistivity responses. Four profiles were selected to explore the sulfide-rich zones within the deposit using the Combined Resistivity Sounding and Profiling (CRSP) array. After the appropriate selection of inversion parameters, the inverted models were in good agreement with the known geological features. The resistivity response of the intrusive rocks were found to be alteration dependent. Furthermore, IP targets likely represent sulfide-rich zones. Our study suggests that if preexisting knowledge regarding the geological setting is available, then resistivity and IP can be helpful in the exploration of skarn mineralization.

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