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

Abstract

Separating anomalies plays a critical role on mineral exploration. In this paper, IP anomalies have been determined by concentration-area (C-A) and singularity methods. Then a comparison has been made between the methods. The singularity map (as well as fractal method) is usually applied in the geochemical exploration process; however, it has not been widely used in the geoelectrical methods so far. In this research, it has been successfully applied to utilize this method to process IP data (recognize anomaly induced polarization data in Hamyj copper deposit). Hamyj deposit is located about 80 km west of Birjand city, South Khorasan province, Iran. In this area, resistivity and induced polarization data have been surveyed by dipole-dipole array. Finally, according to the mentioned method, 67 % of the anomalies (singularity index) are confirmed by the concentration-area method which showed significant adaption with each other. Also, a suitable area is determined by a singularity map for drilling.

Investigating the applicability of induced polarization method in ore modelling and drilling optimization: a case study from Abassabad, Iran

“…Integration of induced polarization (IP) and electrical resistivity (ER) is the best selection for copper mineralization exploration (e.g., Chen and Tsao 2001;Flores and Peralta-Ortega 2009;Mamo 2013;Ferdows and Ramazi 2015a;Mashhadi and Ramazi 2018;. IP and ER methods are among the most applicable geophysical methods used in subsurface studies notably for selection of the best drilling points for exploration purposes (Bishop and Emerson 1999;Wynn and Grosz 2000;Ferdows and Ramazi 2015b;Hope and Andersson 2016). Some examples of their increased usage include copper exploration using 3D IP modelling in NSW, Australia (Whaite et al 2001), using combination of ER and IP in polymetal deposit in China (Yang, Liu and Wang 2008), gold exploration at the eastern desert of Egypt by IP measurement (Taha et al 2018), combination of ER, IP and microgravity to detect buried caves in Spain (Martínez-Moreno et al 2013), copper exploration using IP and ER in Iran (Ramazi and Jalali 2014), gold-silver deposit exploration by IP method in Russia (Gurin et al 2015), detection of the uranium mineralization zone in India (Biswas and Sharma 2016), integration of geophysical methods including IP and ER methods for massive sulphide exploration in Sweden (Tavakoli et al 2016), bitumen mineralization exploration in the west of Iran (Mashhadi, Mostafaei and Ramazi 2017), gold deposit exploration by 3D-induced polarization modelling in Indonesia (Halim et al 2017), 3D tomography of induced polarization and its application in polymetallic mine (Jun-Lu et al 2017), copper mineral exploration using 3D model of IP and resistivity in Brazil (Morriera et al 2018), investigation of a rock glacier by 3D tomography of IP and ER in France (Duvillard et al 2018) and urban area investigation by 3D IP and ER in Stockholm (Pazzi et al 2018;Rossi et al 2017Rossi et al , 2018.…”

“…Integration of induced polarization (IP) and electrical resistivity (ER) is the best selection for copper mineralization exploration (e.g., Chen and Tsao ; Flores and Peralta‐Ortega ; Mamo ; Ferdows and Ramazi ; Mashhadi and Ramazi ; Mostafaei and Ramazi ). IP and ER methods are among the most applicable geophysical methods used in subsurface studies notably for selection of the best drilling points for exploration purposes (Bishop and Emerson ; Wynn and Grosz ; Ferdows and Ramazi ; Hope and Andersson ). Some examples of their increased usage include copper exploration using 3D IP modelling in NSW, Australia (Whaite et al .…”

3D Geophysical Modeling Based on Multi-Scale Edge Detection, Magnetic Susceptibility Inversion, and Magnetization Vector Inversion in Panjshir, Afghanistan to Detect Probabilistic Fe-Polymetallic Bearing Zone

“…These extensive investigations play a fundamental role in enhancing our knowledge of the deep-seated structural aspects of the Earth's crust. Despite the facts mentioned above, metal sulfide concentrations were found, and information on below-ground media was gathered using geophysical exploration methods [14][15][16][17].…”

Application of Integrated Geophysical Technologies to the Exploration of Polymetal Deposits: Case study in Fufang, Jiangxi, China

“…Considering the issues to be resolved, geophysical exploration technologies were used to detect metal sulfide concentration, and ascertain the information regarding underground media [3][4][5][6]. Given the rough terrain, heavy vegetation, and bad traffic condition, geophysical methods that require large instruments are inapplicable.…”